Regency Fireplace Products Horizon HZO42-NG Quick start guide

FPI FIREPLACE PRODUCTS INTERNATIONAL LTD. 6988 Venture St., Delta, BC Canada, V4G 1H4
918-882k 01.15.17
Owners &
Installation Manual
Tested by:
Installer: Please complete the details on the back cover
and leave this manual with the homeowner.
Homeowner: Please keep these instructions for future reference.
MODELS: HZO42-NG
HZO42-LP
Regency Horizon
® HZO42 Outdoor
Gas Fireplace
WARNING : FOR OUTDOOR USE ONLY
www.regency-re.com
Horizon HZO42 Product Video
WARNING:
If the information in these instructions
are not followed exactly, a fire
or explosion may result causing
property damage, personal injury or
loss of life.
WARNING - FOR YOUR SAFETY
What to do if you smell gas:
•Shut o󰀨 gas to the appliance.
•Do not try to light any appliance.
•Extinguish any open ame.
•If odour continues, keep away from the appliance and im-
mediately call your gas supplier or re department.
•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 re
department.
WARNING:
Improper installation, adjustment,
alteration, service or maintenance
can cause injury or property damage.
Read the installation, operating and
maintenance instructions thoroughly
before installing or servicing this
equipment.
Installation and service must be
performed by a qualied installer,
service agency or the gas supplier.
WARNING:
Do not store or use gasoline or other ammable vapours
and liquids in the vicinity of this or any other appliance.

2| Regency Horizon® HZO42 Gas Fireplace
|
2
DANGER
CARBON MONOXIDE HAZARD
This appliance can produce carbon monoxide
which has no odor.
Using it in an enclosed space can kill you.
Never use this appliance in an enclosed space
such as a camper, tent, car or home.
X
X
X
To the New Owner:
Congratulations!
You are the owner of a state-of-the-art Gas Fireplace by REGENCY®. The Horizon™ HZO42 Outdoor fireplace
has been designed to provide you with all the warmth and charm of a fire at the flick of a switch. The Horizon™
HZO42 Outdoor fireplace 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.
Horizon HZO42 Product Video
Regency Horizon
Gas Inserts Benets Video

Regency Horizon® HZO42 Gas Fireplace | 3
3
|
table of contents
safety label
Copy of Safety Decal .....................................................4
dimensions
Unit Dimensions ............................................................5
installation
Important Message ......................................................6
Before You Start .............................................................6
General Safety Information ............................................6
Installation Checklist .....................................................7
Locating Your Gas Fireplace ..........................................7
Outdoor appliance installation summary .......................8
Minimum Clearances to combustibles ...........................9
Framing Dimensions ....................................................10
Mantel Clearances .......................................................11
Non-Combustible Requirements..................................11
Finishing ......................................................................12
High Elevation ..............................................................13
Gas Line Installation ....................................................13
Pilot Adjustment ...........................................................13
Gas Pipe Pressure Testing ..........................................13
880 S.I.T. Valve Description .........................................13
Aeration Adjustment ....................................................13
Unit Assembly Prior to Installation ...............................14
Standoff Assembly ...............................................14
Nailing Strips........................................................14
Drain Installation (Recommended) ..............................15
Wall switch and battery installation ..............................16
Wiring Diagram ............................................................17
Hardwire kit Installation ...............................................18
AC adaptor Installation ................................................22
Inner panel installation .................................................23
Glass crystal installation .............................................24
Volcanic stone installation ..........................................25
Optional Log Set Installation ........................................26
Heat deflector installation ............................................28
Faceplate installation ...................................................29
Glass wind shield installation .......................................30
Weather cover installation / removal ............................30
operation
Operating Instructions .................................................35
Lighting Procedure ......................................................35
Shutdown Procedure ...................................................35
First Fire ......................................................................35
Aeration Adjustment ....................................................35
Copy of Lighting Plate Instructions ..............................36
maintenance
Maintenance Instructions ............................................37
Valve assembly Replacement ......................................38
parts
Main Assembly ............................................................41
Burner Assembly .........................................................42
Accessories .................................................................43
warranty
warranty .......................................................................44

4| Regency Horizon® HZO42 Gas Fireplace
|
4safety decal
This is a copy of the label that accompanies each
HZO42 Outdoor 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
For the State of Massachusetts, installation and
repair must be done by a plumber or gas fitter
licensed in the Commonwealth of Massachusetts.
For the State of Massachusetts, flexible connec-
tors shall not exceed 36 inches in length.
For the State of Massachusetts, the appliances
individual manual shut-off must be a t-handle
type valve.
Part #: 918-888e Colour: Black on grey except what is indicated as being printed red. Size: (File at 100%) Jan 8/18 Rev. E - updated standard June 15/17 Rev. D - Updated indoors storage + electrical info May 24/17: Rev. C - updated standard + added electrical info Aug. 5/10: Rev. B Added control # July 5/10: Changed mantel height clearance May 4/ 10: WN# issued - approved Jan. 13/10: Created draft for approval - Do not print
DO NOT REMOVE THIS LABEL / NE PAS ENLEVER CETTE ÉTIQUETTE 364
364
FPI Fireplace Products International Ltd.
6988 Venture St.
Delta, BC, Canada V4G 1H4
Minimum Clearances to Combustibles /
Dégagements min. aux matériaux combustibles
Serial No./ No de série
. NOT FOR USE WITH SOLID FUELS. /
NE PAS UTILISER AVEC DES COMBUSTIBLES SOLIDES Made in Canada/ Fabriqué au Canada
Duplicate S/N
APPAREIL FONCTIONNANT AU PROPANE
Modèle HZO42
PROPANE: Model HZO42-LP
NATURAL
GAS: Model HZO42-NG
Maximum supply pressure Minimum supply pressure Manifold pressure high Orifice size Maximum input
Altitude
Pression d'alimentation maximale
Pression d'allimentation minimum
Pression manifold lev eé é
Taille de l'orifice
D bit calorifique maximal seloné l'altitude
14” WC/C.E. (3.49 kPa) 5" WC/C.E. (1.25 kPa) 3.5" WC/C.E. (0.87 kPa)
# 29 DMS
44,500 Btu/h (13.04 kW) 0-4500 ft/pi (0-1372 m)
Pression d'alimentation maximale
Pression d'alimentation minimale
Pression manifold lev eé é
Taille de l'orifice
D bit calorifique maximal seloné l'altitude
14" WC/C.E. (3.49 kPa) 11” WC/C.E. (2.74 kPa) 10" WC/C.E. (2.49 kPa)
# 47
DMS
43,500 Btu/h (12.74 kW) 0-4500 ft/pi (0-1372 m)
Maximum supply pressure Minimum supply pressure Manifold pressure high Orifice size Maximum input Altitude
D
E
F
A
B
C
Side Walls / Parois latérales A 11” (279mm) Ceiling / Plafond B 36” (914mm)
Min. Mantel Height/Hteur min. manteau C 18”(457mm)
Max. Mantel Depth/Prof. max. manteau D 12” (305mm)
Alcove Width/Largeur alcôve
E 57" (1448mm) Alcove Depth/Prof. alcôve F 36" (914mm)
The installation must conform with local codes or, in the absence of local codes, with CAN/CSA-B149.1, Natural Gas and Propane Installation Code or ANSI Z223.1/NFPA 54. The appliance, when installed, must be electrically grounded in accordance with local codes or, in the absence of
local codes, with the Canadian Electrical Code, CSA C22.1 or with the National Electrical Code, ANSI/NFPA 70. This appliance is only for use with the type of gas indicated on the rating plate . See owner's manual for details.
L'installation doit être conforme aux codes locaux ou, en l'absence de tels codes, à la norme CAN/CSA-B149.1, gaz naturel et propane ou au Code d'installation ANSI Z223.1/NFPA 54. L'appareil, une fois installé, doit être raccordé électriquement à la terre conformément aux codes locaux ou, en
l'absence de tels codes, au Code canadien d'électricité, CSA C22.1 ou au National Electrical Code, ANSI / NFPA 70.
Cet appareil est à utiliser uniquement avec le type de gaz indiqué sur la plaque signalétique. Voir le manuel d’installation pour plus de détails. Electrical supply/Alimentation électrique : 6VDC or 115V less than/inférieur à 1A
APPAREIL FONCTIONNANT AU GAZ NATUREL
Modèle HZO42
FOR OUTDOOR USE ONLY / POUR UTILISATION À L’EXTÉRIEUR SEULEMENT
IF STORED INDOORS, DETACH AND LEAVE CYLINDER OUTDOORS / SI STOCKÉ À L’EXTÉRIEUR, DÉTACHER LA BOUTEILLE ET LA LAISSER À L’EXTÉRIEUR 918-888e
Minimum ambient air temperature in which appliance may be operated: 32ºF (OºC).
Ne pas faire fonctionner l'appareil si la température ambiante est inférieure à: 32ºF (OºC).
HZO42-LP
HZO42-NG
Listed:
OUTDOOR DECORA
TIVE GAS APPLIANCE / FOYER EXTÉRIEUR AU GAZ D’AGRÉMENT
Certified for/Certifi
e pour: CANADA and U.S.A.é
Conforms to:
4 Certified to: CSA 2.14-2014 and CSA 2.17-2017 ANSI Z21.97-201
4001
172

Regency Horizon® HZO42 Gas Fireplace | 5
5
|
dimensions
UNIT DIMENSIONS
ALL PICTURES / DIAGRAMS SHOWN THROUGHOUT THIS MANUAL ARE FOR ILLUSTRATION PURPOSES ONLY.
ACTUAL PRODUCT MAY VARY DUE TO PRODUCT ENHANCEMENTS.

6| Regency Horizon® HZO42 Gas Fireplace
|
6installation
IMPORTANT MESSAGE
SAVE THESE
INSTRUCTIONS
The HZO42 Gas Fireplace must be installed in
accordance with these instructions. Carefully read
all the instructions in this manual first. Consult the
"authority having jurisdiction" to determine the need
for a permit prior to starting the installation. It is the
responsibility of the installer to ensure this fireplace
is installed in compliance with manufacturers
instructions and all applicable codes.
BEFORE YOU START
Safe installation and operation of this appliance
requires common sense, however, we are required
by the Canadian Safety Standards and ANSI
Standards to make you aware of the following:
GENERAL SAFETY
INFORMATION
1) The installation must conform with local
codes or, in the absence of local codes, with
CAN/CSA-B149.1, Natural Gas and Propane
Installation Code or CAN/CSA-B149.2, Propane
installation code the Natural Gas Fuel Code,
ANSI Z223.1/NFPA 54.
2) The appliance when installed, must be
electrically grounded in accordance with local
codes, or in the absence of local codes with the
Canadian Electrical Code CSA C22.1or with
the National Electrical Code, ANSI/NFPA 70.
3) See general construction and assembly
instructions. The appliance should be enclosed.
4) Inspect the burner before each use of the
appliance for blockage and any signs of
deterioration.
CHILDREN AND ADULTS SHOULD
BE ALERTED TO THE HAZARDS OF
HIGH SURFACE TEMPERATURES,
ESPECIALLY THE FIREPLACE GLASS
AND FACEPLATE, AND SHOULD STAY
AWAYTO AVOID BURNS OR CLOTHING
IGNITION.
THIS APPLIANCE SHALL BE USED
ONLY OUTDOORS IN A WELL-VENTI-
LATED SPACE AND SHALL NOT BE
USED IN A BUILDING,GARAGE OR ANY
OTHER ENCLOSED AREA.
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
CONTROLCOMPARTMENTS,BURNERS
AND CIRCULATING AIR PASSAGEWAYS
OF THE APPLIANCE BE KEPT CLEAN.
ANY GUARD OR OTHER PROTECTIVE
DEVICE REMOVED FOR SERVICING
THE APPLIANCE MUST BE REPLACED
PRIORTO OPERATINGTHE APPLIANCE
WARNING: FAILURE TO INSTALL THIS
APPLIANCE CORRECTLY WILL VOID
YOUR WARRANTY AND MAY CAUSE A
SERIOUS FIRE.
CLOTHING OR OTHER FLAMMABLE
MATERIAL SHOULD NOT BE PLACED
ON OR NEAR THE APPLIANCE.
DO NOT USE THIS APPLIANCE IF
ANY PART HAS BEEN UNDER WATER.
IMMEDIATELY CALL A QUALIFIED
SERVICE TECHNICIAN TO INSPECT
THE APPLIANCE AND TO REPLACE
ANY PART OFTHE CONTROL SYSTEM
AND ANY GAS CONTROL WHICH HAS
BEEN UNDER WATER.
YOUNG CHILDREN SHOULD BE CARE-
FULLY SUPERVISED WHEN THEY 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.
5) To prevent injury, do not allow anyone who is
unfamiliar with the operation to use the fireplace.
6) Wear gloves and safety glasses for protection
while doing required maintenance.
7) Maximum gas inlet pressure = 1/2 psig.
8) Under no circumstances should this appliance
be modified. Parts that have to be removed for
servicing should be replaced prior to operating
this appliance.
9) Installation and any repairs to this appliance
should be done by a qualified service person.
A professional service person should be called
to inspect this appliance annually. Make it a
practice to have all of your gas appliances
checked annually.
10) Under no circumstances should any solid fuels
(wood, paper, cardboard, coal, etc.) be used in
this appliance.
11) The appliance and its individual shutoff valve
must be disconnected from the gas supply
piping system during any pressure testing of
that system at test pressures in excess of 1/2
psi (3.5kPa).
12) The appliance area must be kept clear and
free of combustible materials, (gases and other
flammable vapours and liquids).
It is highly recommended to protect the
interior from moisture (rain, snow). Cover
the enclosure opening when not in use. This
replace is only for use with the type of gas
indicated on the rating plate. This replace
is not convertible for use with other gases,
unless a certied kit is used.
13) Cover must be removed when burner is in
operation.
14) When not using appliance for extended periods
of time - turn off gas supply.
Emissions from burning wood or gas could
contain chemicals known to the State of
California to cause cancer, birth defects or
other reproductive harm.

Regency Horizon® HZO42 Gas Fireplace | 7
7
|
installation
LOCATING YOUR
GAS FIREPLACE
1) When selecting a location for your fireplace, ensure that the clearances are met.
2) This appliance must be installed in an open-air situation with natural ventilation, without stagnant
areas, where gas leakage and products of combustion are rapidly dispersed by wind and natural
convection.
3) Certain materials or items, when placed under or near the appliance, will be subjected to radiant
heat and could become damaged.
4) Typically an outdoor space is not enclosed but, any enclosure in which the appliance is used shall
comply with one of the following:
An enclosure with walls on all sides, but at least one permanent opening at ground level and no
overhead cover.
Within a partial enclosure that includes an overhead cover and no more that two walls.
Within a partial enclosure that includes an overhead cover and more than two walls, the following
shall apply:
• At least 25% of the total wall area is completely open, and
• At least 30% of the remaining wall area is open and unrestricted
INSTALLATION
CHECKLIST
1) Locate appliance:
a) Refer to "Locating Your Gas fireplace" section
b) Clearances to Combustibles (Refer to
"Clearances" section)
c) Mantel Clearances (Refer to "Combustible
Mantel Clearances" section)
d) Framing & Finishing Requirements (Refer
to "Framing & Finishing" section)
2) Top Facing Support and Side Nailing Strips
(Refer to "Unit Assembly Prior to Installation"
Section). Note: Must be done before installing
unit into place.
3) Drain Installation.
4) Install ON/OFF switch - ensure it is in the OFF
position.
5) Make gas connections - test for leaks.
6) Install 4 "AA" batteries
7) Install standard and optional features. Refer to
the following sections:
a. Inner Panel
b. Glass Crystals
c. Pebble Installation (optional)
d. Garden Stone Installation (optional)
e. Log Installation (optional)
f. Glass Wind Shield Installation
g. Heat Deflector Installation
h. Faceplate Installation
i. Weather Cover Installation
8) Final check.
This includes:
1) Clocking the appliance to ensure the correct
firing rate (rate noted on label), after burning
appliance for 15 minutes.
2) If required, adjusting the primary air to ensure
that the flame does not carbon. First allow the
unit to burn for 15-20 min. to stabilize.
CAUTION: Any alteration to the product that
causes sooting or carboning that results in dam-
age is not the responsibility of the manufacturer.
30% or more in total of the remaining wall
area is open and unrestricted.
Open side at least 25% of total wall area
NOTE: In order to function correctly, these
types of appliances require at least 50% open
access for permanent ventilation/airflow.
Open ventilation/airflow space comes from
walls and roof/ceiling.
Open floor space around the unit must not be
considered ventilation/airflow space.
*SEE IMPORTANT INSTALLATION NOTES NEXT PAGE

8| Regency Horizon® HZO42 Gas Fireplace
|
8installation
• Never insulate around the body of the unit
• Excessive heat retention in the firebox will lead to component failure
and fireplace malfunction
• Excessive heat retention will also increase the risk of fire inside the
chase
• Heat retention can cause “Oil-canning” and damage the fireplace due
to overheating
• Do not build up a wall of any type in front or to the sides of the appli-
ance, higher than the firebox opening. This will create a pressure zone
at the firebox and will prevent the unit from venting
• This is an outdoor appliance with a built-in drain. This drain should be
installed and connected in all applications as per the instructions in
this manual
• Inadequate drainage will cause rust and reduce the life of your appli-
ance, this is not protected by warranty
• Outdoor units use the same consistent, reliable Electronic components
used in most Regency “E” units
• Installed correctly, these components will be subjected to far lower
temperatures than indoor units, which have been certified as safe from
heat etc
• Working gas pressures are as critical in outdoor products as they are
in indoor products, even more important in Electronic systems
• Unit shutting down intermittently
• Overheating of components leading to failure
• Lifting flame
• Poor flame package (i.e. all to one side, lazy flame)
• Failure to ignite
• Excess carbon
• Safety issues and concerns created from the byproducts of combus-
tion
• Outdoor appliances must be installed in: open-air situations with natu-
ral ventilation and without stagnant areas
• Any gas leakage and products of combustion need to be rapidly dis-
persed by wind and natural convection
• Typically outdoor spaces are not enclosed, however, failure to adhere
to installation guidelines, may cause the outdoor fireplace to be af-
fected by wind or air pressure inside the enclosure
• ANY enclosure in which the appliance is used shall comply with one of
the diagrams on the previous page.
• All walls + overhead cover = 100% total area
• One of four walls or full overhead area must be totally open, plus—one
of remaining walls must have a fixed opening
• All outdoor fireplaces/fire tables require total natural ventilation of 50%
open space
• Correct Working Gas pressure is critical on “E” units
• Wherever possible avoid locating on a flat wall in a tight corner
• Floor space doesn’t count as “open area”
• Install to the manual specs for framing and do not insulate unit or
enclosure
• Framing enclosure must at least meet minimum dimensional specs as
per the installation manual
• Only Regency approved media should be used in the firebox (i.e.
stones/glass)
• Be aware of pressure zones due to location (i.e. facing the ocean)
• Open walls and doorways to outside air are beneficial to the perfor-
mance of an outdoor appliance
• Fixed roof/ceiling open areas count towards the total open area overall
requirement
• Screens create 40% or more air restriction
• Screened areas are restrictions and reduce open air space, calculate
area based on a closed screen
• The biggest problems are created by lack of airflow for the appliance
• Outdoor fireplaces are often built-in systems and incorrect installation
can result in high repair costs
• Units must not be modified or altered in any way
• There is a common misconception that being outdoors, an Outdoor
Fireplace will function, regardless of circumstances,
• Outdoor fireplaces require the same amount of ventilation as indoor
units, often more
• Outdoor units require adequate ventilation to the atmosphere, which in
turn provides ongoing circulatory combustion air
• This type of Appliance Vents.
• All Outdoor Fireplace Products have the same need for Air/Oxygen,
and an ability to Vent
• Even though the appliance is outdoors, this doesn’t mean it is getting
adequate air
• Requirements are not specific to Regency units
• Read and follow critical location guidelines in this manual
• Don’t overlook the obvious
• Widen your margin for error
• Combustion always requires the same three elements
• Only the quantities and volumes change
IMPORTANT INFORMATION FOR OUTDOOR FIREPLACE INSTALLATIONS
IMPORTANT THINGS TO REMEMBER
ANTICIPATED ISSUES CAUSED BY
INCORRECT LOCATION OR INSTALLATION
OUTDOOR APPLIANCES REQUIRE VENTING
COMPONENTS IN OUTDOOR APPLIANCES
COMMON MISCONCEPTIONS REGARDING
OUTDOOR FIREPLACES
UNDERSTANDING OUTDOOR APPLIANCE
REQUIREMENTS
OUTDOOR APPLIANCE INSTALLATION SUMMARY

Regency Horizon® HZO42 Gas Fireplace | 9
9
|
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 replace be
installed only in accordance with these instructions.
MINIMUM CLEARANCES TO COMBUSTIBLES
The clearances listed below are Minimum distances unless otherwise stated:
A major cause of res is failure to maintain required clearances (air space) to combustible materials. It is of the greatest importance that this
replace be installed only in accordance with these instructions.
F
E
D
A
C
B
HZO42 Clearance Requirements
Clearance: Dimension Measured From:
A: Sidewall 11" (203mm) Side of Fireplace Opening
B: Ceiling 36" (914mm) Top of Fireplace Opening
C: Mantel Height (min.) 18" (457mm) Top of Fireplace Opening
D: Mantel Depth (max.) 12" (304mm) From Wall
E: Alcove Width 57"(1148mm) Wall to Wall (Minimum)
F: Alcove Depth 36" (914mm) Front to Back Wall (Maximum)
Notes: 0" No Hearth Required
E
F
Alcove
A
B
WARNING:
When installing this appliance; do not cover or surround
with insulation.
This appliance can overheat and cause malfunction
and component failure, if covered, or partially covered.
If the appliance is installed inside a chase, insulation
must be installed on the walls of the chase, not on the
appliance.

10 | Regency Horizon® HZO42 Gas Fireplace
|
10 installation
FRAMING DIMENSIONS
A
B
C
D
Metal Stud
on edge
G
F
Note: All other framing may
be of wood construction.
E
Framing
Dimensions Description HZO42
A Header Height 32-11/16” (30mm)
B Side Stud Width 42 - 3/16" (1072mm)
C Minimum framing depth 20" (508mm)
D Minimum Height to Combustibles 52 - 1/2" (1334mm)
E Minimum framing width 60" (1524mm)
F Corner Wall Depth 40 - 7/16" (1027mm)
G Corner Facing Wall Width 54 - 3/16" (1376mm)
H Gas Connection Opening Height 2" (51mm)
I Gas Connection Height 3-7/8 " (98mm)
J Gas Connection Inset 3/4" (73mm)
K Gas Connection Opening Width 3-7/8 " (98mm)
* 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.
I
J
J
K
Important Note: Two (2) ventilation grills are highly recommended for all enclosures.
This is to alleviate moisture and allow for air to circulate. Minimum recommended size: 20" sq (508 mm²) ea.

Regency Horizon® HZO42 Gas Fireplace | 11
11
|
installation
Due to the extreme heat this replace emits, the mantel
clearances are critical. Combustible mantel clearances from
top of front facing are shown in the diagram on the right.
Note: Ensure the paint that is used on the mantel and the
facing is "heat resistant" or the paint may discolour.
Combustible Material
2
0
12 64
810
12" (305mm)
Standoff
Metal Stud
(On Edge)
0
14
Non-combustible
Facing
To Unit
Base
1" (25mm)
26-1/2” 18”
23”
10
20
26
Topof
Fireplace
Opening
11”
MANTEL CLEARANCES
NON-COMBUSTIBLE REQUIREMENTS
2-7/8”
(3mm)6-9/16”
(167mm)
10-7/8”
(276mm)
16” (406mm)
38-1/16” (767mm)
Non-combustible
Material
Non-combustible Material
Non-combustible Material
7
43-11/16”(1110mm)

12 | Regency Horizon® HZO42 Gas Fireplace
|
12 installation
FINISHING
IMPORTANT FINISHING DETAIL NOTE:
Before placing unit into nal position - it is important to know the total thickness / height of nished hearth. The base of the replace should be
level or higher than the nished hearth height.
”
18”
41-1/2”
 Ifmaterialsuchasbrick,stone,etcextendspastthefaceplatedepth(1-1/2"),whennishing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.
 Formaterialsuchasbrick,stone,etcthatextendupto1-1/2",theminimumopeningdimensionsnotedbelowmustbeadhered,whennishingaround
thefaceplate.Thisistoensuretheremovalofthefaceplateandforthesafeoperationofthisappliance.
For facing/finishing material over 1-1/2” (38mm) thick, use the outer cut out for your
faceplate template.
41-1/2”
”
16”
38-1/16”
Unit shown without faceplate

Regency Horizon® HZO42 Gas Fireplace | 13
13
|
installation
GAS PIPE PRESSURE
TESTING
Theappliancemustbeisolatedfromthegassup-
plypipingsystembyclosingitsindividualmanual
shut-o󰀨valveduringanypressuretestingofthe
gassupplypipingsystemattestpressuresequal
toorlessthan1/2psig.(3.45kPa).Disconnect
pipingfromvalveatpressuresover1/2psig.
Themanifoldpressureiscontrolledbyaregulator
builtintothegascontrol,andshouldbechecked
at the pressure test point.
Note: To properly check gas pressure, both
inlet and manifold pressures should be
checked using the valve pressure ports
on the valve.
1) Makesurethevalveisinthe"OFF"position.
2) Loosen the "IN" and/or "OUT" pressure tap(s),
turningcounterclockwisewitha
 1/8"wideatscrewdriver.
3) Attach manometer to "IN" and/or "OUT" pressure
tap(s)usinga5/16"IDhose.
4) Lightthepilotandturnthevalveto"ON"position.
5) The pressure check should be carried out with
theunitburningandthesettingshouldbewithin
thelimitsspeciedonthesafetylabel.
6) Whennishedreadingmanometer,turno󰀨the
gasvalve,disconnectthehoseandtightenthe
screw(clockwise)witha1/8"atscrewdriver.
Note: Screw should be snug, but do not over
tighten.
AERATION ADJUSTMENT
The burner aeration is factory set but may need
adjusting due to either the local gas supply or
altitude.Opentheairshutterforablueameor
closeforamoreyellowame.
Minimum Air Shutter Opening:
1/8" NG
1/4" LP
Note: Any damage due to carboning resulting
from improperly setting the aeration
controls is NOT covered under warranty.
HIGH ELEVATION
Thisunitisapprovedforaltitude0to4500ft.(CAN1
2.17-M91).
GAS LINE
INSTALLATION
Since some municipalities have additional local
codes it is always best to consult with your local
authorities and the CAN/CGA B149 installation
code.
For USA installations follow local codes and/or the
currentNationalFuelGasCode,ANSIZ223.1.
When using copper or ex connectors use only
approvedttings.Alwaysprovideaunionsothat
gaslinescanbeeasilydisconnectedforservicing.
Flarenutsforcopperlinesandexconnectorsare
usuallyconsideredtomeetthisrequirement.
NOTE: A shuto󰀨 / dante valve should be sup-
plied in or near the unit (or as per local codes)
for ease of servicing this appliance.
IMPORTANT: Always check for gas leaks with
a soap and water solution or gas leak detector.
Do not use open ame for leak testing.
HZO42 SYSTEM DATA
Max.SupplyPressure 14"WC(3.49kpa)
Min.SupplyPressure 5"WC(1.25kpa)
ManifoldPressure 3.5"WC(0.87kpa)
OriceSize #29DMS
Maximum Input 44,500Btu/h
(13.04kW)
HZO42-LP SYSTEM DATA
Max.SupplyPressure 14"WC(3.49kpa)
Min.SupplyPressure 11"WC(2.73kpa)
ManifoldPressure 10"WC(2.49kpa)
OriceSize #47DMS
Maximum Input 43,500Btu/h
(12.74 kW)
Note: If you have an incorrect ame pattern,
contact your Regency®dealer for further
instructions.
Incorrect ame pattern will have small, probably
yellow ames, not coming into proper contact
with the rear burner or ame sensor.
Burner
Flame Sensor
Pilot Ignitor
PILOT ADJUSTMENT
Periodically check the pilot ames. Correct ame
pattern has two strong blue ames: 1 owing
around the ame sensor and 1 owing across
the burner (it does not have to be touching the
burner).
880 S.I.T. VALVE
DESCRIPTION
1) Pilotadjustment
2) OutletPressureTap
3) InletPressureTap
4) PilotOutlet
5) MainGasOutlet
6) MainGasInlet
2
1
3
4
5
6
Correct ame pattern

14 | Regency Horizon® HZO42 Gas Fireplace
|
14 installation
UNIT ASSEMBLY PRIOR TO INSTALLATION
The 6 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).
Standoffs installed
Nailing Strips
Note:
Depending on the material used for nishing, the nailing strips must
besetaccordinglysothatthenishedmaterialisalwaysatthe1-1/2"
edgeoftheange.
Finished
Material
NailingStrip
Position
1/2" 1"
1" 1/2"
1-1/2" 0"(ush)
Unit
Nailing Strip
1” Forward
Unit
Nailing Strip
½” Forward
Unit
Nailing Strip
Flush w/unit
Factory Set
NAILING STRIPS
The nailing strips come attached to the unit. There is 1 plate on each side
and 1 on the top that can be folded out as required.
Secure the top and side nailing strips to the framing.

Regency Horizon® HZO42 Gas Fireplace | 15
15
|
installation
Finished
Material
NailingStrip
Position
1/2" 1"
1" 1/2"
1-1/2" 0"(ush)
DRAIN INSTALLATION (RECOMMENDED)
Although this fireplace is designed to operate outdoors safely, rain and other sources of moisture may enter the hearth area, which will cause water to col-
lect inside the base of the unit.
To prevent excessive water collection, the installer must provide a way to drain the water from the base of the unit by building or installing a
water collector before positioning the fireplace in its location.
INSTALLATION INSTRUCTIONS
When planning for the installation of the unit, the framing height must be increased by 3/4", when installing a drain pan. Additional space below the unit will
also be required to plumb a drain line.
1) Remove 4 screws to remove the rear access panel from the back of the unit - this will allow access to the drain hole at the base of the unit.
2) On the exposed drain hole (see location below), install a PVC 3/4" threaded coupling reducer going from the top of the pan, down through the hole.
Apply a silicone-based sealant around the base and threads before installation.
3) Holding the reducer coupling with a wrench, thread a 90° PVC elbow (from the underside of the unit) to the reducer until it is tight to the metal.
Note: To assure proper drainage, that fireplace must be installed on a leveled surface
4) Add additional piping to route the drain to an appropriate location.
Drain hole location at
base of the unit
Threaded
Reducer
(PVC)
Threaded
Elbow
@ 90°
(PVC)
Reducer and elbow can be purchased from your local
hardware store.
Cut notches into the top
of the coupling reducer to
prevent water pooling.
Rear access panel
Drain hole

16 | Regency Horizon® HZO42 Gas Fireplace
|
16 installation
WALL SWITCH AND BATTERY INSTALLATION
(INCLUDED WITH UNIT)
The unit comes with low voltage wire and a battery extension wire installed.
1) Run supplied wire to desired location - to a max. of 9 feet.
2) Install supplied electrical box in desired location.
3) Remove center knock out from electrical box and install strain relief
(strain relief nut not required).
4) Route low voltage wire and battery extension wire through the strain
relief.
5) Connect low voltage wire to supplied switch, fasten switch to right side of
electrical box (polarity not important).
8) Place supplied gasket on top of electrical box.
9) Fasten cover to electrical box using supplied screws.
10) Place switch in OFF position until final installation is complete.
Center knock out
Strain Relief
6) Install supplied 4-AA batteries into the battery holder. Using velcro install
battery holder to the backside of the battery compartment door. Connect
battery terminal.
7) Using silicone, completely seal strain relief to protect from water or moisture.

Regency Horizon® HZO42 Gas Fireplace | 17
17
|
installation
WIRING DIAGRAM
Thisheaterdoesnotrequirea120VA.C.supplyforoperation.(Do not cut the ground terminal o󰀨 under any circumstances.)
NOTE: 4 AA batteries must be installed in the battery pack to operate the burner switch.
Removetheprotectivecoatingfromthefollowingcomponentsbeforeproceeding.Carefullyfollowstainlesshandlinginstructionsonfollowingpage.
0.886.001
Proflame Valve
Standard Main On/Off Switch
or Optional Wall Switch
SureFire™ Switch
880
Proflame
880
Standard Wall Switch

18 | Regency Horizon® HZO42 Gas Fireplace
|
18 installation
1
OUTDOOR SERIES
919-774 04.03.17
OPTIONAL HARD WIRE KIT INSTALLATION
WARNING!
• USE ONLY A GROUND FAULT INTERRUPTER (GFI) PROTECTED CIRCUIT WITH THIS OUTDOOR GAS APPLIANCE .
• ENSURE THAT ALL POWER SOURCES HAVE BEEN SHUT OFF PRIOR TO BEGINNING ANY ELECTRICAL WORK.
• DO NOT USE THIS APPLIANCE IF ANY PA RT HAS BEEN UNDER WATER.
• CALL A QUALIFIED SERVICE TECHNICIAN IMMEDIATELY TO HAVE THE APPLIANCE INSPECTED FOR DAMAGE TO THE ELEC-
TRICAL CIRCUIT.
• RISK OF ELECTRICAL SHOCK OR EXPLOSION. DO NOT WIRE 110V TO THE VALVE OR TO THE APPLIANCE WALL SWITCH.
• INCORRECT WIRING WILL DAMAGE CONTROLS AND IS NOT COVERED BY THE WARRANTY.
• ALL WIRING SHOULD BE DONE BY A QUALIFIED ELECTRICIAN AND SHALL BE IN COMPLIANCE WITH LOCAL CODES. IN
THE ABSENCE OF LOCAL CODES, USE THE CURRENT CSA22.1 CANADIAN ELECTRIC CODE IN CANADA OR THE CURRENT
NATIONAL ELECTRIC CODE ANSI / NFPA NO. 70 IN THE UNITED STATES.
A hard wire kit is available for this unit as an option, to hard wire this appliance, a qualified electrician must remove the cord connection, and wire
the appliance directly to the household wiring.
This appliance must be electrically connected and grounded in accordance with local codes, if hard wired.
In the absence of local codes, use the current CSA C22.1 CANADIAN ELECTRICAL CODE in Canada or the current ANSI/NFPA 70 NATIONAL
ELECTRICAL CODE in the United States.
SHUT OFF GAS AND ELECTRICAL SUPPLY BEFORE
STARTING THIS INSTALLATION.
1. Install electrical box into the outer box with 4 screws (Diagram 1).
2. Depending on which side (or conduit size) the electrical outlet will be
installed, remove the corresponding knockouts in the outer box and
electrical box to allow access for the conduit wiring (supplied by others)
(Diagram 1).
ALL WIRING SHOULD BE DONE BY A QUALIFIED ELECTRICIAN
.QRFNRXWV
2XWHUER[
(OHFWULFDO%R[
*URPPHW
.H\KROH
In the diagram below the outer box is installed. To install the outer box,
line up the keyholes on the box with corresponding screws (installed in
previous step) on the framing kit. When the box is in position, tighten the
screws. (PTO30/PTO50 only)
4. Run the conduit to the electrical box through the knockout and
complete the wiring of the electrical to the GFI circuit supplied with the
kit. Once electrical wiring is complete,Secure both the GFI circuit and
white blanking plate to the electrical box using 2 screws each.
Install electrical box into the outer box with 4 screws.
Note: If 2 burners are used, an additional AC adapter will be required to power the second burner. (PTO30/PTO50 only)
3. Install 4 screws into existing holes in the interior if using the optional
framing kit in locations shown in the diagram below. Keep screws
loose--do not tighten.
NOTE: If the optional framing is not used the outer box can be installed
into conventional framing. See Step 14.
4 screws into
framing
GFI circuit
Blanking
Plate
Diagram 1
Important :This electrical box must be located within 10 feet of the burner(s) as the AC adaptor is 10 feet long and will
not reach the DC supply wire connection if any farther.
The 4 AA batteries do not need to be installed if using the AC
adaptor. The batteries would only be required in the event that
120V power is lost.
(PTO30/PTO50 only)
HARDWIRE KIT INSTALLATION

Regency Horizon® HZO42 Gas Fireplace | 19
19
|
installation
2
OUTDOOR SERIES
919-774 04.03.17
9:LUH
6ZLWFK:LUH
XVHVWUDLQUHOLHIRQERWK
5. Plug in the supplied AC adaptor and run the wire through the bottom
of the outer box, be sure to use a grommet to protect the wire.
8. Remove the valve cover plate on side of unit to expose the DC supply
wire by removing 6 screws (PTO30/PTO50/HZO60 only)
NOTE: The valve cover plate should be removed prior to being installed
into the framing kit or framing in general for ease of access to these 6
screws. This would also apply when reinstalling the valve cover plate.
11. Locate the 'DC supply' wire on the wiring harness,the wire will be
clearly marked. See 'AC Adaptor Install' in the manual.
6. Run the AC adaptor wire from the recently installed electrical box, to
the back of the unit end.
7. Attach the AC adaptor to the DC supply wire. Secure wire using a
strain relief ( see enclosed picture) Reinstall the valve cover plate
(reverse Step 6).
Valve cover plate
(PTO30/PTO50/HZO60 only)
Strain
Relief
Protective cover
with lid
Outer cover
Back of
unit housing
13. Install cover onto outer box.
12. Secure protective cover with lid to the receptacle box with 4 screws.
14. Tu rn on gas and electrical supply and test unit.
15. PTO100 Only:
If a second AC adaptor is required to power a second burner, repeat
steps 5-9.
HZO42 only- remove 6 screws in locations shown below to access DC
supply.
6th screw located at back
PTO30/PTO50/HZO60 HZO42
9. HZO42/HZO60 only--Remove the front access panel by lifting up and
out.
10. HZO42/HZO60--Remove the burner tray by lifting up and out.

20 | Regency Horizon® HZO42 Gas Fireplace
|
20 installation
3
OUTDOOR SERIES
919-774 04.03.17
)URQW9LHZ
7RS9LHZ
6LGH9LHZ
)UDPLQJ:LGWK




 
)UDPHGRSHQLQJLIQRWXVLQJVWHHOVWXG
IUDPLQJNLW
1RWH)LQLVKHGPDWHULDOVZRXOGDSSO\WR
ERWKLIXVLQJWKHVWHHOVWXGNLWRU
IUDPLQJXVLQJRWKHUPDWHULDOV
6HFXUHRXWHUER[
WRVWXGV
6WXGVWRVHFXUHRXWHUER[
,QVWDOOLQJWKHRXWHUER[LQWRFRQYHQWLRQDOIUDPLQJ
7KHIURQWRXWHUFRYHUPD\DOVREHFRYHUHGZLWK¿QLVKLQJPDWHULDOVLIGHVLUHG
(QVXUHWKDWWKHRXWHUFRYHU  ZKHQ XVLQJ ¿QLVKHG PDWHULDOV WKDWLWPD\EH
UHPRYHGLIDFFHVVLVHYHUUHTXLUHGWRWKH*),FLUFXLW
$GGLWLRQDOVWXGVVKRXOGEHSODFHGDQ\ZKHUHLQWKLVDUHD
WREHDEOHWRVHFXUH¿QLVKHGPDWHULDOV)UDPHGRSHQLQJ
VKRXOGEHDPLQLPXPRI

2XWHUFRYHU
PLQ
)LQLVKHGPDWHULDO