Regency Fireplace Products Horizon HZ42E-NG Quick start guide

WARNING:
Iftheinformationintheseinstructionsarenotfollowedexactly,
a fire or explosion may result causing property damage,
personal injury or loss of life.
FOR YOUR SAFETY
Do not store or use gasoline or other flammable vapors and
liquids in the vicinity of this or any other appliance.
Installation and service must be performed by a qualified
installer, service agency or the gas supplier.
FOR YOUR SAFETY
What to do if you smell gas:
Do not try to light any appliance
Do not touch any electrical switch:
do not use any phone in your
building.
Immediately call your gas supplier
from a neighbour's phone. Follow
the gas supplier's instructions.
If you cannot reach your gas
supplier, call the fire department.
FPI FIREPLACE PRODUCTS INTERNATIONAL LTD. 6988 Venture St., Delta, BC Canada, V4G 1H4
918-932
Regency Horizon™HZ42E
Gas Fireplace
04/12/11
Owners &
Installation Manual
www.regency-fire.com
Tested by:
Installer
Installer
: Please complete the details on the back cover
: Please complete the details on the back cover
and leave this manual with the homeowner.
Homeowner: Please keep these instructions for future reference.
MODELS: HZ42E-NG Natural Gas
HZ42E-LP Propane

2HZ42E Regency Horizon™ Gas Fireplace
To the New Owner:
Congratulations!
You are the owner of a state-of-the-art Gas Fireplace by REGENCY®. The HZ42E has been
designed to provide you with all the warmth and charm of a fireplace at the flick of a switch. The
model HZ42E has been approved by Warnock Hersey/Intertek for both safety and efficiency. As
it also bears our own mark, it promises to provide you with economy, comfort and security for
many trouble free years to follow. Please take a moment now to acquaint yourself with these
instructions and the many features of your Regency®Fireplace.

HZ42E Regency Horizon™ Gas Fireplace 3
MANUFACTURED MOBILE HOME REQUIREMENTS
INFORMATION FOR MOBILE/MANUFACTURED HOMES AFTER FIRST SALE
This Regency®product has been tested and listed by Warnock Hersey/Intertek as a Direct Vent Wall Furnace to the following standards:
VENTEDGASFIREPLACEHEATERSANSIZ21.88a-2007/CSA2.33a-2007andGAS-FIREDAPPLIANCESFORUSEATHIGHALTITUDES
CAN / CGA 2.17-M91.
This Direct Vent System Appliance must be installed in accordance with the manufacturer's installation instructions and the Manufactured
Home Construction and Safety Standard, Title 24 CFR, Part 3280, or the current Standard of Fire Safety Criteria for Manufactured Home
Installations, Sites, and Communities ANSI/NFPA 501A, and with CAN/CSA Z240-MH Mobile Home Standard in Canada.
This appliance installation must comply with the manufacturer's installation instructions and local codes, if any. In the absence of local codes
followthe currentNational FuelGas Code,ANSIZ223.1 andthe currentNational ElectricalCodeANSI/NFPA70in theU.S.A., andthe current
CAN/CGA B149 Gas Installation Code and the current Canadian Electrical Code CSA C22.1 in Canada.
This appliance comes equipped with a dedicated #8 Ground Lug for attachment of the ground wire to the steel chassis as applicable to
local codes.
The appliance, when installed, must be electrically grounded in accordance with local codes or, in the absence of local codes, with the
National Electrical Code, ANSI/NFPA 70, or the Canadian Electrical Code, CSA C22.1.
This appliance may only be installed in an aftermarket permanently located, manufactured (U.S.Aonly) or mobile home, where not prohibited
by local codes.
This appliance can only be used with the type of gas indicated on the rating plate. This appliance is not convertible for use with other gases.
Ensure that structural members are not cut or weakened during installation.

4HZ42E Regency Horizon™ Gas Fireplace 4
TABLE OF CONTENTS
SAFETY LABEL
Copy of Safety Decal.....................................................5
REQUIREMENTS
MA Code - CO Detector.................................................6
DIMENSIONS
Unit Dimensions ............................................................7
INSTALLATION
Important Message ......................................................8
Before You Start ............................................................8
General Safety Information............................................8
Installation Checklist......................................................9
Locating Your Gas Fireplace .........................................9
Clearances ..................................................................10
Mantel Clearances.......................................................11
Mantel Leg Clearances................................................11
Unit Assembly Prior To Installation..............................12
Standoff Assembly...............................................12
Nailing Strips........................................................12
Framing Dimensions....................................................13
Non-Combustible Requirements .................................14
Non-combustible facing installation ............................14
Framing & Finishing.....................................................15
Vent Restrictor Position...............................................17
Exterior Vent Termination Requirements.....................18
4” x 6-5/8” Rigid Pipe Cross Reference Chart only .....19
Venting Introduction.....................................................21
Venting Arrangement for Horizontal Terminations.......21
Horizontal Terminations...............................................22
Flex Vent 4" x 6-5/8"....................................................22
horizontal terminations ................................................23
Rigid Pipe 4" x 6-5/8"...................................................23
Horizontal Terminations...............................................24
Rigid Pipe 4" x 6-5/8"...................................................24
Venting Arrangement for Vertical Terminations............27
Vertical terminations....................................................28
Rigid Pipe 4" x 6-5/8"...................................................28
Vertical Terminations ...................................................29
Rigid Pipe 4" x 6-5/8"...................................................29
Unit Installation with Horizontal Termination ...............31
4" x 6-5/8" venting .......................................................31
Unit Installation with Horizontal Termination ...............32
unit installation with Vertical Termination.....................33
4" x 6-5/8" venting .......................................................33
High Elevation .............................................................34
Gas Line Installation....................................................34
Pilot Adjustment...........................................................34
Gas Pipe Pressure Testing..........................................34
886 S.I.T. Valve Description.........................................34
Aeration Adjustment ....................................................34
Wiring Diagram............................................................35
Optional accent lighting Wiring Diagram ....................35
Optional Wall Thermostat ...........................................36
Optional Remote Control.............................................36
Wall Switch..................................................................36
GT remote installation .................................................37
GTM remote installation ..............................................38
Optional Reflective Panel Installation..........................40
Optional Light Installation............................................41
Glass Crystals or optional ceramic stones ..................44
Installation On Burner..................................................44
Optional Pebble / Crystal Installation...........................45
Glass door Installation.................................................46
Faceplate Installation..................................................47
OPERATING INSTRUCTIONS
Operating Instructions .................................................49
First Fire ......................................................................49
Shutdown Procedure...................................................49
Normal Operating Sounds of Gas Appliances.............49
Copy of Lighting Plate Instructions..............................50
MAINTENANCE
Maintenance Instructions.............................................51
General Vent Maintenance..........................................51
Glass Gasket...............................................................51
Glass Door...................................................................51
Glass Replacement .............................................51
Glass Door Removal ...................................................52
Valve assembly Replacement .....................................53
Bulb replacement.........................................................54
PARTS LIST
Main Assembly ............................................................55
Accessories.................................................................55
WARRANTY
The Warranty: Limited Lifetime ...................................59

HZ42E Regency Horizon™ Gas Fireplace 5
SAFETY LABEL
This is a copy of the label that accompanies each HZ42E-NG and HZ42E-LP Direct Vent Gas Fireplace. We have printed a copy of the contents here for
your review.
NOTE: Regency®units are constantly being improved. Check the label on the unit and if there is a difference, the label on the unit is the correct one.
COPY OF SAFETY DECAL
FortheState of Massachusetts, installation
and repair must be done by a plumber or
gasfitter licensed in the Commonwealth of
Massachusetts.
FortheStateofMassachusetts,flexiblecon-
nectorsshallnotexceed36inchesinlength.
For the State of Massachusetts, the appli-
ances individual manual shut-off must be a
t-handle type valve.
The State of Massachusetts requires the
installation of a carbon monoxide alarm in
accordancewithNFPA720and a COalarm
withbatterybackupinthesameroomwhere
the gas appliance is installed.
DO NOT REMOVE THIS LABEL / NE PAS ENLEVER CETTE ÉTIQUETTE
371
DOOR SEAL: Please
check that the door is
properly sealed
FPI Fireplace Products International Ltd. Delta, BC, Canada
Minimum Clearances to Combustibles /
Degagement Minimum De Materiaux Combustibles
Serial No./ No de serie
918-931
MAY BE INSTALLED IN MANUFACTURED (MOBILE) HOMES AFTER FIRST SALE.
Listed:
Certified for/Certifi e pour:
Tested to:
VENTED GAS FIREPLACE HEATER /
CANADA and U.S.A.
FOYER AU GAZ À ÉVACUATION
é
CAN/CGA-2.17-M91,ANSI Z21.88a-2007/CSA 2.33a-2007
4001172
Electrical supply / Électrique 115VAC, 1.13 A, 60Hz.
NOT FOR USE WITH SOLID FUELS. /
NE PAS UTILISER AVEC DU COMBUSTIBLE SOLIDE.
Made in Canada/ Fabrique au Canada
(See Instruction Manual for
detailed instructions)
ÉÉ
é
QUIP A L'UISINE POUR GAZ PROPANE
CONCU POUR ETRE POELE: Mod le HZ42E
PROPANE GAS: Model HZ42E-LP
Minimum supply pressure
Manifold pressure high
Manifold pressure low
Orifice size
Minimum input
Maximum input
Altitude
NATURAL GAS: Model HZ42E-NG
APPAREIL FONCTIONNANT AU NATURAL GAS
CONCU POUR ETRE POELE: Mod le HZ42E
Pression d'allimentation minimum
Pression à la tubulure d' chappement lev e
Pression à la tubulure d' chappement basse
Grandeur de l'injecteur
D bit minimum selon
D bit maximum selon
l'altitude
Calorifique
Calorifique
é
ééé
é
é
é
5.0" (1.25 kPa)
3.5" (0.87 kPa)
1.6" (0.40 kPa)
#40 DMS
0-4500 ft/pi (0-1372 m)
WC/C.E.
WC/C.E.
WC/C.E.
17,500 Btu/h (5.13 kW)
26,000 Btu/h (7.62 kW)
Pression d'allimentation minimum
Pression à la tubulure d' chappement lev e
Pression à la tubulure d' chappement basse
Grandeur de l'injecteur
D bit minimum selon
D bit maximum selon
l'altitude
Calorifique
Calorifique
ééé
é
é
é
12“ WC (2.98 kpa)
WC/C.E.
WC/C.E.
19,500 Btu/h (5.71 kW)
24,500 Btu/h (7.18 kW)
10" (2..49 kPa)
6.4" (1.60 kPa)
#53 DMS
0-4500 ft/pi (0-1372 m)
Minimum supply pressure
Manifold pressure high
Manifold pressure low
Orifice size
Minimum input
Maximum input
Altitude
D
E
F
A
B
C
Side Walls
A 8” (203mm)
B 22” (559mm)
C 13" (330mm)
D 13” (330mm)
E 84" (2133mm)
F 36" (914mm)
Ceiling
Min. Mantel Height
Max. Mantel Depth
Alcove Width
Alcove Depth
This appliance must be installed in accordance with local codes, if any; if none, follow the National Fuel Gas Code, ANSI Z223.1, or Natural Gas and Propane Installation Code, CSA B149.1.
This appliance must be installed in accordance with the Standard CAN/CSAZ240 MH, Mobile Housing, in Canada, or with the Manufactured Home Construction and Safety Standard, Title 24 CFR, Part 3280, in
the United States, or when such a standard is not applicable,ANSI/NCSBCS A225.1/NFPA 501A, Manufactured Home Installations Standard orANSIA119.2 ou NFPA 501C Standard for Recreational Vehicles
This appliance is only for use with the type of gas indicated on the rating plate and may be installed in an aftermarket, permanently located, manufactured (mobile) home where not prohibited by local codes. See
owner's manual for details.
Installer l'appareil selon les codes ou règlements locaux, ou, en l'absence de tels règlements, selon les codes d'installationANSI Z223.1, National Fuel Gas Code ou CSA-B149.1 en vigueur.
Installer l'appareil selon la norme CAN/CSA-Z240, Série MM, Maison mobiles ou CAN/CSA-Z240 VC, Véhicules de camping, ou la norme 24 CFR Part 3280, Manufactured Home Construction and Safety
Standard. Si ces normes ne sont pas pertinentes, utilisez la norme ANSI/NCSBCS A225.1/NFPA 501A, Manufactured Home Installations Standard, ou ANSI A119.2 ou NFPA 501C Standard for Recreational
Vehicles.
This vented gas fireplace heater is not for use with air filters. Ne pas utiliser de filtre à air avec ce foyer au gaz à évacuation.
FOR USE WITH GLASS DOORS CERTIFIED WITH THE APPLIANCE ONLY
Cet appareil doit être utilize uniquement avec le type de gaz indiqué sur la plaque signalétique. Cet appareil peut être installé dans une maison préfabriquée ou mobile (É.-U. seulement) installée à demeure si
les règlements locaux le permettent. Voir la notice de l'utilisateur pour plus de renseignements. Cet appareil ne peut pas être utilisé avec d'autres gaz sauf si une trousse de conversion certifiée est fournie.
POUR UTILISATION UNIQUEMENT AVEC LES PORTES EN VERRE CERTIFIÉES AVEC L'APPAREIL

6HZ42E Regency Horizon™ Gas Fireplace 66
REQUIREMENTSREQUIREMENTS
5.08: Modifications to NFPA-54, Chapter 10
(2) Revise 10.8.3 by adding the following additional requirements:
(a) For all side wall horizontally vented gas fueled equipment installed in every dwelling, building or structure used in whole or in part for
residential purposes, including those owned or operated by the Commonwealth and where the side wall exhaust vent termination is less than
seven (7) feet above finished grade in the area of the venting, including but not limited to decks and porches, the following requirements shall
be satisfied:
1. INSTALLATION OF CARBON MONOXIDE DETECTORS. At the time of installation of the side wall horizontal vented gas fueled
equipment, the installing plumber or gasfitter shall observe that a hard wired carbon monoxide detector with an alarm and battery back-up is
installed on the floor level where the gas equipment is to be installed. In addition, the installing plumber or gasfitter shall observe that a battery
operated or hard wired carbon monoxide detector with an alarm is installed on each additional level of the dwelling, building or structure
served by the side wall horizontal vented gas fueled equipment. It shall be the responsibility of the property owner to secure the services of
qualified licensed professionals for the installation of hard wired carbon monoxide detectors
a. In the event that the side wall horizontally vented gas fueled equipment is installed in a crawl space or an attic, the hard wired carbon
monoxide detector with alarm and battery back-up may be installed on the next adjacent floor level.
b. In the event that the requirements of this subdivision can not be met at the time of completion of installation, the owner shall have a period of
thirty (30) days to comply with the above requirements; provided, however, that during said thirty (30) day period, a battery operated carbon
monoxide detector with an alarm shall be installed.
2. APPROVED CARBON MONOXIDE DETECTORS. Each carbon monoxide detector as required in accordance with the above provisions
shall comply with NFPA 720 and be ANSI/UL 2034 listed and IAS certified.
3. SIGNAGE. A metal or plastic identification plate shall be permanently mounted to the exterior of the building at a minimum height of eight
(8) feet above grade directly in line with the exhaust vent terminal for the horizontally vented gas fueled heating appliance or equipment. The
sign shall read, in print size no less than one-half (1/2) inch in size, "GAS VENT DIRECTLY BELOW. KEEP CLEAR OF ALL
OBSTRUCTIONS".
4. INSPECTION. The state or local gas inspector of the side wall horizontally vented gas fueled equipment shall not approve the installation
unless, upon inspection, the inspector observes carbon monoxide detectors and signage installed in accordance with the provisions of 248 CMR
5.08(2)(a)1 through 4.
(b) EXEMPTIONS: The following equipment is exempt from 248 CMR 5.08(2)(a)1 through 4:
1. The equipment listed in Chapter 10 entitled "Equipment Not Required To Be Vented" in the most current edition of NFPA 54 as adopted by
the Board; and
2. Product Approved side wall horizontally vented gas fueled equipment installed in a room or structure separate from the dwelling, building or
structure used in whole or in part for residential purposes.
(c) MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING SYSTEM PROVIDED. When the manufacturer of Product
Approved side wall horizontally vented gas equipment provides a venting system design or venting system components with the equipment, the
instructions provided by the manufacturer for installation of the equipment and the venting system shall include:
1. Detailed instructions for the installation of the venting system design or the venting system components; and
2. A complete parts list for the venting system design or venting system.
(d) MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING SYSTEM NOT PROVIDED. When the manufacturer of a
Product Approved side wall horizontally vented gas fueled equipment does not provide the parts for venting the flue gases, but identifies
"special venting systems", the following requirements shall be satisfied by the manufacturer:
1. The referenced "special venting system" instructions shall be included with the appliance or equipment installation instructions; and
2. The "special venting systems" shall be Product Approved by the Board, and the instructions for that system shall include a parts list and
detailed installation instructions.
(e) A copy of all installation instructions for all Product Approved side wall horizontally vented gas fueled equipment, all venting instructions,
all parts lists for venting instructions, and/or all venting design instructions shall remain with the appliance or equipment at the completion of
the installation.
MA Code - CO Detector
(for the State of Massachusetts only)

HZ42E Regency Horizon™ Gas Fireplace 77
DIMENSIONSDIMENSIONS
UNIT DIMENSIONS
47” (1194mm)
15-5/8” (397mm)
18-5/8” (473mm)
½” (13mm)
30” (762mm)
48-3/4” (1238mm)
23-5/8” (600mm)
14-5/32” (360mm)
28-7/8” (733mm)
1-½” (38mm)
36” (914mm)
12-7/8” (327mm)
½” (13mm)
36-7/8” (937mm)
1-½” (38mm)
41-3/16”” (1046mm)
21-3/16” (538mm)
38”” (965mm)

8HZ42E Regency Horizon™ Gas Fireplace 8
INSTALLATIONINSTALLATION
10) Beaware of electricalwiringlocations in walls
andceilingswhencuttingholesfortermination.
11) Undernocircumstancesshouldthisappliance
bemodified.Partsthathavetoberemovedfor
servicingshouldbereplacedpriortooperating
this appliance.
12) Installation and any repairs to this appliance
should be done by an authorized service per-
son. A professional service person should be
calledtoinspectthisapplianceannually.Make
it a practice to have all of your gas appliances
checked annually.
13) Do not slam shut or strike the glass door.
14) Undernocircumstancesshouldanysolidfuels
(wood, paper, cardboard, coal, etc.) be used
in this appliance.
15) The appliance area must be kept clear and
freeofcombustiblematerials,(gasesandother
flammable vapours and liquids).
Emissions from burning wood or gas could
contain chemicals known to the State of
California to cause cancer, birth defects or
other reproductive harm.
IMPORTANT MESSAGE
SAVE THESE
INSTRUCTIONS
TheHZ42E Direct VentFireplace must be installed
inaccordancewiththeseinstructions.Carefullyread
all the instructions in this manual first. Consult the
"authorityhavingjurisdiction"todeterminetheneed
for a permit prior to starting the installation. It is the
responsibilityoftheinstallertoensurethisfireplace
is installed in compliance with manufacturers
instructions and all applicable codes.
BEFORE YOU START
Safe installation and operation of this appliance
requirescommonsense,however,wearerequired
by the Canadian Safety Standards and ANSI
Standards to make you aware of the following:
GENERAL SAFETY
INFORMATION
1) The appliance installation must conform with
local codes or, in the absence of local codes,
with the current Canadian or National Gas
Codes,CAN1-B149orANSIZ223.1Installation
Codes.
2) The appliance when installed, must be electri-
callygroundedinaccordance withlocalcodes,
orintheabsenceoflocalcodeswiththecurrent
NationalElectricalCode,ANSI/NFPA70orCSA
C22.1 Canadian Electrical Code.
3) See general construction and assembly in-
structions. The appliance and vent should be
enclosed.
4) Thisappliancemustbeconnectedtothespeci-
fied vent and termination cap to the outside of
the building envelope. Never vent to another
room or inside a building. Make sure that the
vent is fitted as per Venting instructions.
5) Inspect the venting system annually for block-
age and any signs of deterioration.
6) Venting terminals shall not be recessed into a
wall or siding.
7) Any safety glass removed for servicing must
be replaced prior to operating the appliance.
8) To prevent injury, do not allow anyone who is
unfamiliarwiththeoperationtousethefireplace.
9) Wear gloves and safety glasses for protection
while doing required maintenance.
CHILDREN AND ADULTS SHOULD BE
ALERTED TO THE HAZARDS OF HIGH
SURFACE TEMPERATURES, ESPE-
CIALLY THE FIREPLACE GLASS, AND
SHOULD STAY AWAYTO AVOID BURNS
OR CLOTHING IGNITION.
INSTALLATION AND REPAIR SHOULD
BE DONE BY AN AUTHORIZED
SERVICE PERSON. THE APPLIANCE
SHOULD BE INSPECTED BEFORE
USE AND AT LEAST ANNUALLY BY A
PROFESSIONAL SERVICE PERSON.
MORE FREQUENT CLEANING MAY
BE REQUIRED DUE TO EXCESSIVE
LINT FROM CARPETING, BEDDING
MATERIAL,ETC. IT IS IMPERATIVETHAT
CONTROL COMPARTMENTS,BURNERS
AND CIRCULATING AIR PASSAGEWAYS
OF THE APPLIANCE BE KEPT CLEAN.
DUE TO HIGH TEMPERATURES, THE
APPLIANCE SHOULD BE LOCATED
OUT OF TRAFFIC AND AWAY FROM
FURNITURE AND DRAPERIES.
WARNING: FAILURE TO INSTALL THIS
APPLIANCE CORRECTLY WILL VOID
YOUR WARRANTY AND MAY CAUSE A
SERIOUS HOUSE FIRE.
CLOTHING OR OTHER FLAMMABLE
MATERIAL SHOULD NOT BE PLACED
ON OR NEAR THE APPLIANCE.
YOUNG CHILDREN SHOULD BE CARE-
FULLY SUPERVISED WHENTHEY ARE
IN THE SAME AREA AS THE APPLI-
ANCE. TODDLERS,YOUNG CHILDREN
AND OTHERS MAY BE SUSCEPTIBLE
TO ACCIDENTAL CONTACT BURNS. A
PHYSICAL BARRIERS IS RECOMMEND-
ED IFTHERE ARE AT RISK INDIVIDUAL
INTHE HOUSE. TO RESTRICT ACCESS
TO A FIREPLACE OR STOVE, INSTALL
AN ADJUSTABLE SAFETY GATE TO
KEEP TODDLERS, YOUNG CHILDREN
AND OTHER AT RISK INDIVIDUALS OUT
OF THE ROOM AND AWAY FROM HOT
SURFACES.

HZ42E Regency Horizon™ Gas Fireplace 9
INSTALLATION
This includes:
1) Clocking the appliance to ensure the correct
firing rate (rate noted on label 26,000 Btu/h
(NG),24,500Btu/h(LP)afterburningappliance
for 15 minutes.
2) If required, adjusting the primary air to ensure
thattheflame does not carbon. Firstallowthe
unit to burn for 15-20 min. to stabilize.
CAUTION: Any alteration to the product that
causes sooting or carboning that results in
damage is not the responsibility of the manu-
facturer.
INSTALLATION
CHECKLIST
1) Locate appliance
a) Roomlocation(Referto"LocatingYourGas
fireplace" section)
b) Clearances to Combustibles (Refer to
"Clearances" section)
c) Mantle Clearances (Refer to "Mantel
Clearances" section)
d) Framing & Finishing Requirements (Refer
to "Framing & Finishing" section)
e) Venting Requirements (Refer to "Venting"
section)
2) Assemble Standoffs (Refer to "UnitAssembly
Prior to Installation).
3) Slide unit into place.
4) Install vent (Refer to "Venting Arrangement"
sections).
5) Make gas connections (Refer to "Gas Line
Installation section).
6) Make electrical connections to receptacle
supplied with unit (recommended).
7) Test the pilot (Refer to "Pilot Adjustment"
section).
8) TestGasPressure(Referto"GasPipePressure
Testing" section).
9) Installstandard and optional features. Refer to
the following sections:
a) Glass Crystals/ Optional Ceramic
Stones
b) Optional Firebox Base Pebbles
c) Optional Reflective Panels
d) Optional Accent Light
e) Faceplate
f) Remote Control or Wall Thermostat
10) Wall Mounted ON/OFF Switch:
Use the toggle wall switch supplied with the
manualpackage.Useofa“decor”switchcauses
higher resistance which is a problem on gas
fireplaces.
11) Final check.
Before leaving this unit with the customer, the
installer must ensure that the appliance is firing
correctly and operation fully explained to
customer.
LOCATING YOUR
GAS FIREPLACE
1) When selecting a location for your fireplace,
ensure that the clearances are met.
2) Theappliancemustbeinstalledon a flat, solid,
continuoussurfaceForexampleawood,metal
or concrete floor or in a raised (on the wall) ap-
plication. The appliance must be installed on
a metal or wood panel extending the full width
and depth of the appliance.
3) The HZ42E Direct Vent Gas Fireplace can be
installed in a recessed position or framed out
into the room as in A, B, C and D.
See Diagram 1.
Diagram 1
A) Flat on Wall
B) Flat on Wall Corner
C) Recessed into Wall/Alcove
D) Corner
4) ThisapplianceisListedforbedroom installations
usingthestandardRemote(millivoltthermostat
system). Some areas may have further
requirements, check local codes before
installation.
5) The HZ42E Direct Vent Gas Fireplace
is approved for alcove installations, see
"Clearances" section for details.
6) We recommendthatyouplanyourinstallationon
paperusingexactmeasurementsforclearances
andfloorprotectionbeforeactuallyinstallingthis
appliance.Haveanauthorizedinspector,dealer,
orinstallerreviewyourplansbeforeinstallation.
Note: For vent terminations refer to "Exterior
Vent Termination Locations" section.

10 HZ42E Regency Horizon™ Gas Fireplace
INSTALLATION
Caution Requirements
The top, back and sides of the fireplace are defined by
standoffs. The metal ends of the standoff may NOT be
recessed into combustible construction.
WARNING
Fire hazard is an extreme risk
if these clearances (air space) to combustible materials are not
adhered to. It is of greatest importance that this fireplace and vent
system be installed only in accordance with these instructions.
CLEARANCES
The clearances listed below are Minimum distances unless otherwise stated:
Amajor causeofchimneyrelated fires is failure to maintain required clearances (air space) to combustible materials.Itisofthe greatest importance
that this fireplace and vent system be installed only in accordance with these instructions.
Clearance: Dimension Measured From:
A: Mantel Height (min.) 13" (330mm) Top of Fireplace Opening
B: Sidewall (on one side) 8" (203mm) Side of Fireplace Opening
C: Ceiling
(room and/or alcove) 22" (559mm) Top of Fireplace Opening
D: Mantel Depth (max.) 13" (330mm) 22" Above Fireplace Opening
E: Alcove Width 84" (2134mm) Sidewall to Sidewall (Minimum)
F: Alcove Depth 36" (914mm) Front to Back Wall (Maximum)
G: From Floor 25-3/4" Top of Fireplace Opening
Note: 0" No hearth required
Flue Clearances to Combustibles
Horizontal - Top 3"
Horiztonal - Side 2"
Horiztonal - Bottom 2"
Vertical 2"
Passing through wall/
floor/ceiling - when
firestop is used. 1-1/2"
Alcove
E
F
IMPORTANT NOTE
Combustible material can only be installed to
the bottom lip of the fireplace as shown below.
The finished floor must not come in contact with
the front face of the fireplace. Non-combustible
material (see "Framing and Finishing" section)
must act as a barrier between the front face and
finished floor.

HZ42E Regency Horizon™ Gas Fireplace 11
INSTALLATION
MANTEL CLEARANCES
MANTEL LEG CLEARANCES
Combustible mantel leg clearances as per diagram:
4"
Allowable mantel
leg projection
5-1/2” (140mm)
8” (203mm)
11” (279mm)
1.5" (38mm)
MANTEL LEG 3-7/8”(98mm)
Non-Combustible
7”
Combustible Material
2
0
12 64
810
12" (305mm)
Standoff
Metal Stud
(On Edge)
0
14
Non-combustible
Facing
To Unit
Base
1" (25mm)
21-1/2”
13”
25-3/4”
10
20
26
Top of
Fireplace
Opening
Due to the extreme heat this fireplace emits, the
mantelclearancesare critical.Combustiblemantel
clearances from top of front facing are shown in the
diagram on the right.
Note: Ensurethepaintthatisusedonthemantel
and the facing is "heat resistant" or the
paint may discolour.

12 HZ42E Regency Horizon™ Gas Fireplace
INSTALLATION
NAILING STRIPS
Thenailingstrips comeattachedtotheunit.Thereis1 plateoneachside,
1 on the top, and one on the bottom that can be folded out as required.
The top and side nailing strips are secured to the framing. The bottom
nailing strip is secured to the unfinished floor - if installing the unit directly
on the floor.
UNIT ASSEMBLY
PRIOR TO
INSTALLATION
The Nailing Strips and the 2 Standoffs must be correctly positioned and attached
before unit is slid into position.
STANDOFF ASSEMBLY
The standoffs are shipped in a flat position and must be folded into shape and
attached.
1) Remove the standoffs from the fireplace.
2) Take each standoff and bend into the correct shape. Bend up at the bend lines
until the screw holes in the standoff and the pre-punched screw holes on the
fireplace top line up.
3) Attach the standoff securely to the unit with 2 screws per standoff (on opposite
corners).
IMPORTANT NOTE
Framing depth measurement is noted with the
nailing strips set as far forward on the firebox
as possible. The nailing strips can be adjusted
back up to 1” to allow for varying thicknesses
in non-combustible material & wall finishes.
Nailing Strips
Standoff
Nailing Strips shown folded out.

HZ42E Regency Horizon™ Gas Fireplace 13
INSTALLATION
FRAMING DIMENSIONS
A
B
C
D
G
H
Non-Combustible
Facing
Metal Stud (Header)
Metal Stud
on edge
F
E
I
J
KL
Flex or Rigid Pipe
Finished Floor
D
rywa
ll
or
other facing
C2
C1
Note: All other framing may
be of wood construction.
Framing
Dimensions Description HZ42E
A Framing Height 37-1/4” (946mm)
B Framing Width 47 - 1/2" (1207mm)
C*Framing Depth*C1 Horizontal Vent 18 - 3/4" (476mm)
C2 Vertical Vent 22" (559mm)
Vertical rise -terminating horizontal
D Minimum Height to Combustibles 39 - 9/16" (1004mm)
E Corner Wall Depth 51 - 1/2" (1308)
F Corner Facing Wall Width 72 - 7/8" (1851mm)
G Vent Centerline Height 33 - 1/4" (845mm)
H Non-combustible facing height 13” (330mm)
I Gas Connection Opening Height 2" (51mm)
J Gas Connection Height 4 - 1/2" (114mm)
K Gas Connection Inset 2 - 7/8" (73mm)
L Gas Connection Opening Width 4 - 5/8" (117mm)
*Framing depth measurement is noted with the nailing strips set as far forward on the firebox as possible.
The nailing strips can be adjusted back up to 1” to allow for varying thicknesses in non-combustible
material & wall finishes.

14 HZ42E Regency Horizon™ Gas Fireplace
INSTALLATION
NON-COMBUSTIBLE FACING INSTALLATION
Non-combustible board
shipped with unit.
Non-combustible board
MUST BE PRIMED.
Non-combustible board
shipped with unit.
Caution: The non-combustible board supplied with this unit can
be damaged if dropped or struck. Handle with care.
1) Using drywall screws - secure non combustible material
around unit, framing and top nailing strip every 6 inches.
Important Note: To avoid cracking the board - pre-drill holes prior to
securing to unit/ framing.
2) Wipe any debris/dust from the non combustible
material and drywall.
3) Prior to taping and mudding it is highly recommended
to prime the facing using a quality primer. This will
ensure proper adhesion of both the tape and mud.
The supplied board is very porous.
4) Tape the seams using a mesh type tape.
5) Mud seams as normal. We recommend using a
product called Durabond high strength compound - for the first coat.
This product can be found at any hardware store.
Mud must be cured as per manufacturer’s recommendations.
6) Prime wall for a second time for proper adhesion of paint
7) Paint walls using a high quality paint which will withstand
the high temperatures being emitted from this appliance.
34 -1/4" (870mm)
3-5/8"
(92mm)
18-3/4”
(467mm)
16"
(406mm)
21-1/2”
41-3/8”
48-7/8" (1241mm)
Non-combustible
Material
(supplied with unit)
Non-combustible
Non-combustible
Non-combustible
Metal Stud (header)
on edge
Metal Stud
Metal Stud
4-3/8"
(111mm)
NON-COMBUSTIBLE REQUIREMENTS
All four pieces (top, 2 sides, bottom) are now supplied to meet the non combustible requirements. Previously only the top was supplied
Calcium silicate board is a high - grade material
with cement, quartz, natural and selected
minerals as the main raw materials. It is widely
used for partitions and ceilings in buildings.
It is fire proof and earthquake proof.
If finishing the wall above the unit with materials
such as tile, brick, marble, etc. non-combustible
board available from the building supply store
can be used.
Note: Calcium Silicate is 1/2' thick

HZ42E Regency Horizon™ Gas Fireplace 15
INSTALLATION
FRAMING & FINISHING
Note: When constructing the framed opening, please ensure there
is access to install the gas lines when the unit is installed.
2) For exterior walls, insulate the enclosure to the same degree as the
rest of the house, apply vapour barrier and drywall, as per local instal-
lation codes. (Do not insulate the fireplace itself.)
WARNING:Failuretoinsulateandaddvaporbarrierstotheinside
of the exterior wall will result in operational and performance
problems including, but not limited to: excessive condensation
on glass doors, poor flame package, carbon, blue flames etc.
These are not product related issues.
3) The unit does not have to be completely enclosed in a chase. You
mustmaintain clearances fromtheventto combustible materials:See
"Clearances" section. Combustible materials can be laid against the
side and back standoffs and the stove base.
4) Non-combustiblematerial(ie.tile, slate,etc)maybebroughtupto and
overlaptheunit(topandbottom)ensuringthatthemaximumthickness
does not go beyond the 1-1/2" as shown in the diagram below. The
faceplate will not be able to be mounted if finished material is beyond
1-1/2".
1) Frame in the enclosure for the unit with framing material.
IMPORTANT: The framed opening must be of non-combustible
material.
5) If material such as brick, stone, etc extends past the faceplate depth (1-1/2"),
when finishing around the faceplate, the minimum opening dimensions noted
below must be adhered to ensuring for the removal of the faceplate and for
the safe operation of this appliance.
1/2" required
between faceplate
+ finished wall
6) For material such as brick, stone, etc that extends less than 1-1/2" , the
minimum opening dimensions noted below must be adhered, when finish-
ing around the faceplate. This is to ensure the removal of the faceplate and
for the safe operation of this appliance.
41-3/8”
21-1/2”
Unit shown without faceplate

16 HZ42E Regency Horizon™ Gas Fireplace
INSTALLATION
Note:
Depending on the material used for finishing, the nailing strips must be set ac-
cordingly so that the finished material is always at the 1-1/2" edge of the flange.
Finished
Material Nailing Strip Position
1/2" 1"
1" 1/2"
1-1/2" 0" (flush)
Unit
Nailing Strip
1” Forward
Unit
Nailing Strip
½” Forward
Unit
Nailing Stri
p
Flush w/uni
t
Factory Set

HZ42E Regency Horizon™ Gas Fireplace 17
INSTALLATION
Vent restriction is required for certain venting installations, see the diagrams in the "Venting
Arrangements" section to determine if they are required for your installation.
The Vent Restrictor plate is located on the inside top of the firebox.
To set the vent restriction as indicated in the venting arrangements diagrams, refer to the following instructions;
1) Remove the glass door - see instructions in this manual.
2) Remove the screws that hold the vent restrictor plate in place.
3) Adjust the vent restrictor plate to the required vent restrictor position as per the diagrams shown.
4) Once the vent restrictor plate is in the required position, secure with screws.
VENT RESTRICTOR POSITION
Vent Restrictor Set 0
Factory Set Vent Restrictor
(no adjustment required)
2”
1-1/2”
1”
Vent Restrictor Set 1
Vent Restrictor Set 2
SET 0
THIS HOLE SETS THE
VENT RESTRICTOR
AT 2”
SET 1
THIS HOLE SETS THE
VENT RESTRICTOR
AT 1-1/2”
SET 2
THIS HOLE SETS THE
VENT RESTRICTOR
AT 1”

18 HZ42E Regency Horizon™ Gas Fireplace
INSTALLATION
EXTERIOR VENT TERMINATION REQUIREMENTS
Minimum Clearance Requirements Canada1USA2
AClearance above grade, veranda, porch, deck, or balcony 12"(30cm) 12"(30cm)
BClearance to window or door that may be opened 12"(30cm) 9" (23cm)
CClearance to permanently closed window **
DVertical clearance to ventilated soffit located above the terminal within a horizontal distance of 2 feet (61cm)
from the center line of the terminal (check with the local code)
19"(48cm) 19"(48cm)
EClearance to unventilated soffit 19"(48cm) 19"(48cm)
FClearance to outside corner: with AstroCap Termination Cap. 7"(18cm) 7"(18cm)
Clearance to outside corner: with all other approved Termination Caps. 13"(33cm) 13"(33cm)
GClearance to inside corner: with AstroCap Termination Cap 7"(18cm) 7"(18cm)
Clearance to inside corner: with all other approved Termination Caps. 13"(33cm) 13"(33cm)
HClearance to each side of center line extended above meter/regulator assembly 36"(90cm)a*
JClearance to service regulator vent outlet 36"(90cm) *
KClearance to non-mechanical air supply inlet to building or the combustion air inlet to any other appliance 12"(30cm) 9" (23cm)
LClearance to a mechanical air supply inlet
#3' (91cm) above if within 10' (3m) horizontally.
72"(1.8m) 36"(90cm)b
MClearance above paved sidewalk or a paved driveway located on public property 84"(2.1m)┼*
NClearance under veranda, porch, deck, or balcony 12"(30cm)‡*
1In accordance with current CSA B149.1, Natural Gas and Propane Installation Code
2In accordance with the current ANSI Z223.1/NFPA 54, National Fuel Gas Code
┼A vent shall not terminate directly above a sidewalk or paved driveway which is located between two single family dwellings and serves both dwellings
‡ Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the floor
*Clearance in accordance with local installation codes and the requirements of the gas supplier
a3 feet (91cm) within a height of 15 feet (4.5m) above the meter / regulator assembly
b3 feet (91cm) above - if within 10 feet (3m) horizontally

HZ42E Regency Horizon™ Gas Fireplace 19
INSTALLATION
4” X 6-5/8” RIGID PIPE
CROSS REFERENCE CHART ONLY
Components from different Manufacturers may not be mixed. NotAll Rigid Pipe components are available directly from FPI.
Description Simpson
Direct Vent Pro®
Selkirk
Direct Temp™
American Metal
Products®
Amerivent Direct
Metal-Fab™
Sure Seal
Security
Secure- Vent®
ICC Excel
Direct
6” Pipe Length-Galvanized 46DVA-06 4DT-6 N/A 4D6 SV4L6 TC-4DL6
6” Pipe Length-Black 46DVA-06B 4DT-6B N/A 4D6B SV4LB6 TC-4DL6B
7” Pipe Length-Galvanized N/A N/A 4D7 N/A N/A N/A
7” Pipe Length-Black N/A N/A 4D7B N/A N/A N/A
9” Pipe Length-Galvanized 46DVA-09 4DT-9 N/A N/A N/A N/A
9” Pipe Length-Black 46DVA-09B 4DT-9B N/A N/A N/A N/A
12” Pipe Length-Galvanized 46DVA-12 4DT-12 4D12 4D12 SV4L12 TC-4DL1
12” Pipe Length-Black 46DVA-12B 4DT-12B 4D12B 4D12B SV4LB12 TC-4DL1B
18” Pipe Length-Galvanized 46DVA-18 4DT-18 4D18 4D18 SV4LA TC-4DL18
18” Pipe Length-Black 46DVA-18B 4DT-18B 4D18B 4D18B SV4LA TC-4DL18B
24” Pipe Length-Galvanized 46DVA-24 4DT-24 4D24 4D24 SV4L24 TC-4DL2
24” Pipe Length-Black 46DVA-24B 4DT-24B 4D24B 4D24B SV4LB24 TC-4DL2B
36” Pipe Length-Galvanized 46DVA-36 4DT-36 4D36 4D36 SV4L36 TC-4DL3
36” Pipe Length-Black 46DVA-36B 4DT-36B 4D36B 4D36B SV4LB36 TC-4DL3B
48” Pipe Length-Galvanized 46DVA-48 4DT-48 4D48 4D48 SV4L48 TC-4DL4
48” Pipe Length-Black 46DVA-48B 4DT-48B 4D48B 4D48B SV4LB48 TC-4DL4B
60” Pipe Length-Galvanized 46DVA-60 4DT-60 N/A N/A N/A N/A
60” Pipe Length-Black 46DVA-60B 4DT-60B N/A N/A N/A N/A
Adjustable Length 3”-10”-Galvanized N/A N/A N/A 4DAL N/A TC-4DLT
Adjustable Length 3”-10”-Black N/A N/A N/A 4DALB N/A TC-4DLTB
Adjustable Length 7”-Galvanized N/A N/A 4D7A N/A N/A N/A
Adjustable Length 7”-Black N/A N/A 4D7AB N/A N/A N/A
Extension Pipe 8-1/2”-Galvanized 46DVA-08A N/A N/A N/A N/A N/A
Extension Pipe 8-1/2”-Black 46DVA-08AB N/A N/A N/A N/A N/A
Adjustable Length 12”-Galvanized N/A N/A 4D12A N/A SV4LA12 N/A
Adjustable Length 12”-Black N/A N/A 4D12A N/A SV4LBA12 N/A
Extension Pipe 16”-Galvanized 46DVA-16A N/A N/A N/A N/A N/A
Extension Pipe 16”-Black 46DVA-16AB N/A N/A N/A N/A N/A
45ºElbow-Galvanized 46DVA-E45 4DT-EL45 4D45L N/A N/A TE-4DE45
45ºElbow-Black 46DVA-E45B 4DT-EL45B 4DT-EL45B N/A N/A TE-4DE45B
45ºElbow Swivel-Galvanized See 46DVA-E45 N/A N/A 4D45L SV4E45 N/A
45ºElbow Swivel-Black See 46DVA-E45B N/A N/A 4D45LB SV4EB45 N/A
90ºElbow-Galvanized 46DVA-E90 4DT-EL90S 4DT-EL90S N/A N/A TE-4DE90
90ºElbow-Black 46DVA-E90B 4DT-EL90SB 4DT-EL90SB N/A SV4EBR90-1 TE-4DE90B
90ºElbow, Swivel-Galvanized See 46DVA-E90 N/A N/A 4D90L SV4E90-1 N/A
90ºElbow, Swivel-Black See 46DVA-E90B N/A N/A 4D90LB SV4EB90-1 N/A
90º Starter Elbow, Swivel-Galvanized N/A N/A N/A 4D90A N/A N/A
Adaptor* N/A N/A N/A 4D90L N/A N/A
Ceiling Support N/A 4DT-CS 4DFSP 4DSP SV4SD TE-4DE45
Cathedral Support Box 46DVA-CS 4DT-CSS 4DRSB 4DRS SV4CSB TE-4DE45B
Wall Support/Band 46DVA-WS 4DT-WS/B 4DWS 4DWS SV4BM N/A
Offset Support 46DVA-ES (N/A - FPI) 4DT-OS N/A N/A SV4SU N/A
Wall Thimble-Black 46DVA-WT 4DT-WT 4DWT 4DWT SV4RSM TE-4DE90
Wall Thimble Support/Ceiling Support 46DVA-DC N/A N/A N/A SV4PF TE-4DE90B
Firestop Spacer 46DVA-FS 4DT-FS 4DFSP 4DFS SV4BF N/A
Trim Plate-Black N/A 4DT-TP 4DFPB 4DCP SV4LA N/A

20 HZ42E Regency Horizon™ Gas Fireplace
INSTALLATION
Description Simpson
Direct Vent Pro®
Selkirk
Direct Temp™
American Metal
Products®
Amerivent Direct
Metal-Fab™
Sure Seal
Security
Secure- Vent®
ICC Excel
Direct
Attic Insulation Shield 12” 46DVA-IS N/A@ FPI N/A 4DAIS12 N/A SV4RSA N/A
Attic Insulation Shield - Cold Climates 36” N/A N/A 4DAIS12 N/A N/A TM-4AS
High Wind Vertical Cap 46DVA-VCH N/A N/A N/A N/A TM-4VT
High Wind Horizontal Cap 46DVA-HC N/A N/A N/A N/A TM-4DHT
Horizontal Square Termination Cap See 46DVA-HC 4DT-HHC 4DHC 4DHT SV4CHC-1 TM-4HT
Vertical Termination Cap 46DVA-VC 4DT-HVC 4DVC 4DVT SV4CGV-1 TM-4VT
Storm Collar 46DVA-08A 4DT-SC 4DSC 4DSC SV4FC TM-SC
Restrictor Disk N/A N/A N/A N/A N/A TM-4DS
Extended Vertical Termination Cap N/A N/A N/A N/A N/A N/A
Chimney Conversion Kit A (USA only) 46DVA-KCA N/A N/A N/A N/A TM-4CA6
Chimney Conversion Kit B (USA only) 46DVA-KCB N/A N/A N/A N/A TM-4CA7
Chimney Conversion Kit C (USA only) 46DVA-KCC N/A N/A N/A N/A TM-4CA8
Chimney Conversion Kit Masonry
(USA only)
46DVA-KMC N/A N/A N/A N/A N/A
Wall Firestop 46DVA-WFS N/A N/A N/A N/A TM-4TR
Colinear Flex Connectors 46DVA-ADF N/A N/A N/A N/A N/A
Adjustable Flashing 0/12-6/12 46DVA-F6 4DT-ST14 4D12S 4DST14 SV4STC14 TF-4FA
Adjustable Flashing 6/12-12/12 46DVA-FLA 4DT-ST36 4D36S 4DST36 SV4STC36 TF-4FB
Vinyl Siding Standoff 46DVA-VSS 4DT-VS N/A 4DVS SV4VS TM-VSS
Vinyl Siding Shield Plate N/A 4DT-VSP N/A N/A SV4VS N/A
Snorkel Termination 14” 46DVA-SNKL N/A N/A N/A N/A TM-4ST14
Snorkel Termination 36” N/A N/A N/A N/A N/A TM-4ST36
Basic Horizontal Termination Kit (A) Disc. 4DT-HKA 4DHTK2 4DHTKA SV-SHK N/A
Horizontal Termination Kit (B) 46DVA-KHA
(Changed Components)
4DT-HKB 4DHTK1 4DHTKB SV-HK N/A
Vertical Termination Kit Disc. 4DT-VKC 4DHTK 4DHTK SV-FK N/A
FPI
946-506/P Vent Guard (Optional) for AstroCap 946-205 Vinyl Siding Shield for Riser Vent Terminal
510-994 Rigid Pipe Adaptor (Must use with all rigid piping) 946-208/P Vent Guard (Optional) for Riser Vent Terminal
640-530/P Riser Vent Terminal 946-523/P AstroCap Horizontal Cap
946-605 Starter Collar Increaser 4” x 6-5/8” to 5” x 8” 946-206 Vinyl Siding Standoff for AstroCap
Note: When using Metal-Fab Sure Seal Rigid Piping - please note that the Adaptor (4DDA) must be used in conjunction with FPI Rigid Pipe Adaptor (510-994).
Note: Horizontal runs of vent must be level, or have a 1/4” rise for every 1 foot of run towards the termination.
Never allow the vent to run downward - this could cause high temperatures and may present a possible fire hazard.
Offset Pipe Selection: Use this table to determine offset pipe lengths.
Pipe Length
(L)
4” x 6-5/8” Venting For specific instructions on venting components - visit the
manufacturers website listed below.
Run (X) Rise (Y)
0” (0mm) 4-7/8” (124mm) 13-7/8” (340mm) Simpson Direct Vent Pro: www.duravent.com
6” (152mm) 8” (203mm) 16-1/2” (419mm) Selkirk Direct-Temp: www.selkirkcorp.com
9” (229mm) 10-1/8” (257mm) 18-5/8” (473mm) American Metal Products: www.americanmetalproducts.com
12” (305mm) 12-1/4” (311mm) 20-3/4” (527mm) Metal-Fab Sure Seal: www.mtlfab.com
24” (610mm) 20-5/8” (524mm) 29-1/8” (740mm) Security Secure Vent: www.securitychimneys.com
36” (914mm) 29” (737mm) 37-1/2” (953mm) Industrial Chimney Company: www.icc-rsf.com
48” (1219mm) 37-7/16” (951mm) 45-15/16” (1167mm)
Regency Fireplace Products . 6988 Venture St. . Delta, BC . Canada . V4G 1H4 . 604-946-5155 . www.regency-fire.com