Regency U1500E-NG11 User manual

U1500E-11 Gas Fireplace | 1
U1500E-11 Gas Fireplace
Model U1500E-NG11 U1500E-LP11
Fuel Type Natural Gas Propane
Minimum Supply Pressure 5” W.C. (1.25 kPa) 11” W.C. (2.73 kPa)
Manifold Pressure - High 3.5” W.C. (0.87 kPa) 10” W.C. (2.48 kPa)
Manifold Pressure - Low 1.6” W.C. (0.41 kPa) 6.4” W.C. (1.59 kPa)
Orifice Size -Altitude 0-4500 ft. #30 DMS #48 DMS
Minimum Input
Altitude 0-4500 ft. (0-1372m)
29,000 BTU/h
(8.49 kW)
33,500 BTU/h
(9.82 kW)
Maximum Input
Altitude 0-4500 ft. (0-1372m)
43,000 BTU/h
(12.6 kW)
42,000 BTU/h
(12.3 kW)
Vent Sizing 5” Inner / 8” Outer 5” Inner / 8” Outer
CSA P.4.1 67.46% 69.64%
Approved Venting Systems
Flex Vent Systems: FPI AstroCap™ Flex Vent
Rigid Pipe Vent Systems: Simpson Direct Vent Pro®
Selkirk Direct-Temp™
American Metal Products®
Metal-Fab® Sure Seal
Security Secure-vent®
ICC Excel
45-1/4"
49-11/16"
13-1/2"
29-1/16"
24-1/4"
6-3/16"
32-5/8"
12-1/4"
23-15/16"
22-1/16"
54-5/16"
(1381mm)
49-11/16"
(1263mm)
(312mm)
(512mm)
(609mm)
(1263mm)
(1150mm)
(674mm)
(737mm)
(829mm)
(344mm)
(159mm)
5"
8"
54-5/16"
(1381mm)
49-11/16"
(1263mm)
12-1/4"
(312mm) 11-11/16"
(297mm)
29-1/16"
(737mm)
32-5/8"
(829mm)
6-3/16"
(159mm)
45-1/4"
(1150mm)
26-1/4"
(666mm)
13-1/2"
(344mm)
53-1/2"
(1359mm)
49-11/16"
(1263mm)
23-15/16"
(608mm)
22-1/16"
(560mm)
4-7/16"
(113mm)
47"
(1194mm)
21-3/4"
(552mm)
16-1/4"
(413mm)
Unit Dimensions
Unit Dimensions with Faceplate

2 | U1500E-11 Gas Fireplace
U1500E-11 Gas Fireplace
Framing Dimensions
Framing
Dimensions Description U1500E
A Framing Height 47" (1194mm)
B Framing Width 55" (1397mm)
C*Framing Depth 24-1/4" (615mm)
D Minimum Height to Combustibles 69-1/2" (1765mm)
E Corner Facing Wall Depth 65-3/4" (1670mm)
F Corner Facing Wall Width 93" (2362mm)
G Vent Centerline Height 41-3/8" (1051mm)
H Non-combustible facing height 23-7/8" (606mm)
I Gas Connection Opening Height 1-11/16" (43mm)
J Gas Connection Height 2-11/16" (67mm)
K Gas Connection Inset 1-1/8" (29mm)
L Gas Connection Opening Width 4-11/16" (119mm)
* 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 1-1/2" (38mm) to allow for varying thicknesses in non-combustible
material & wall finishes.
See non combustible section in the instruction manual for details.
A
B
C
D
G
H
Non-Combustible
Facing
Header
F
E
I
J
K
L
Flex or Rigid Pipe
Finished Floor
Drywall or
other facing
C
C
Note: All other framing may
be of wood construction.
Non-combustible header
(steel stud on edge)

U1500E-11 Gas Fireplace | 3
U1500E-11 Gas Fireplace
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.
A major cause of chimney related fires is failure to maintain required clearances (air space) to combustible materials. It is of the greatest impor-
tance that this fireplace and vent system be installed only in accordance with these instructions.
Installed close
to ceiling.
Flue Pipe Clearances to Combustibles
Horizontal - Top 3"
Horizontal - Side 2"
Horizontal - Bottom 2"
Vertical 2"
Passing through wall/
floor/ceiling - when
firestop is used.
1-1/2"
Alcove
E
F
F
E
D
A
B
Installed Close
to Floor
G
The HeatWave Duct Kit has
different clearance and fram-
ing requirements, check the
HeatWave manual for details.
Clearance: Dimension Measured From:
A: Mantel Height (min.) 25" (635mm) Top of Fireplace Opening
B: Sidewall (on one side) 6" (152mm) Side of Fireplace Opening
C: Ceiling
(room and/or alcove)
46-1/4" (1175mm) Top of Fireplace Opening
D: Mantel Depth (max.) 12" (305mm) 34" (864mm) Above Fireplace
Opening
E: Alcove Width 60" (1524mm) Sidewall to Sidewall (Minimum)
F: Alcove Depth 36" (914mm) Front to Back Wall (Maximum)
G: From Floor 24-1/4" (616mm) Top of Fireplace Opening
Note: 0" No hearth required

4 | U1500E-11 Gas Fireplace
U1500E-11 Gas Fireplace
Mantel Clearances
Due to the extreme heat this fireplace 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 "high quality" or the paint may discolour.
Mantel Leg Clearances
Combustible mantel leg clearances as per diagram:
Wood Studs
0
Non-combustible
Facing
34"
(864mm)
24-1/4"
(616mm)
10"
(254mm)
30"
(762mm)
Top of
Fireplace
Opening
20"
(508mm)
6"
(152mm)
12"
(305mm)
29-1/2"
(749mm)
Steel
Stud
(On Edge)
1"
(25mm)
23-7/8"
(606mm)
6" (152mm)
12" (305mm)
Drywall
From base
of unit
25"
(635mm)
4"
Allowable mantel
leg projection
7-1/8” (181mm)
10”(203mm)
13”( 279mm)
1.5" (38mm)
MANTEL LEG
3-1/4"
(83mm
)
Non-Combustible
7”
(178mm)
(102mm)

U1500E-11 Gas Fireplace | 5
U1500E-11 Gas Fireplace
48-3/16"
(1224mm)
3-1/4"
(83mm)
23-7/8"
(606mm)
56-1/2"
(1435mm)
Non-combustible
Material
Non-combustible
Non-combustible
Steel Stud Header
on edge
Wood Stud
Wood Stud
24-5/16"
(6171mm)
Combustible
Material
3-1/4"
(83mm)
Non-Combustible Facing Installation
Non-combustible board
Non-combustible board-faces an
d edges
MUST BE PRIMED.
Non-combustible board
Caution: The non-combustible board 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 securing it is mandatory to prime the facing and edges
using a quality primer. This will ensure proper adhesion of both
the tape and mud. The supplied board is very porous.
Failure to follow this procedure will result in cracked seams.
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 most hardware stores.
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.
Non-Combustible Requirements
* Installation of the ON/OFF Wall Switch/Battery Holder must be completed before installing non-combustible facing.
All three pieces (top, 2 sides) are supplied to meet the non combustible requirements.
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 NOTE: A minimum thickness
of 1/2" non combustible facing
is required.
Drywall or similar materials

6 | U1500E-11 Gas Fireplace
Framing & Finishing
U1500E-11 Gas Fireplace
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
installation codes. (Do not insulate the fireplace itself and/or the
venting. Clearances must be maintained as per this manual.)
WARNING: Failure to insulate and add vapor barriers to the
inside of the exterior wall will result in operational and per-
formance 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
must maintain clearances from the vent to combustible materials:
See "Clearances" section. Combustible materials can be laid
against the side and back standoffs and the stove base.
4. Non-combustible material (ie. tile, slate, etc) may be brought up to
and overlap the unit (top and bottom) ensuring that the maximum
thickness 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.
NOTE: Spacing of 1"around the completed surround must be adhered to.
Unit shown with inner door frame only
Using the clean edge of the unit shown in
a typical tiled facing.
49-7/8"
18-1/16"
Ensure front of facing material is flush with
the edge of the flange on the fireplace.

U1500E-11 Gas Fireplace | 7
Framing & Finishing
Important:
Determine the nailing strip position by determining the facing material being used.
Examples:
1/2" non-combustible wall board for clean finish =1" adjustment.
1/2" non-combustible wall board + 1/2" tile = 1" of finished material
= 1/2" adjustment.
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.
Note : If material such as brick, stone, etc extends past the depth of 1-1/2" when
finishing around the faceplate ( Inner/Outer faceplate/Verona glass surround), the
minimum opening dimensions around the faceplate must be adhered to ensuring
for the removal of the faceplate and for the safe operation of this appliance. See
framing and finishing in this manual for details.
If only using the inner door trim to create a clean edge finish on all 4 sides,
non combustible material may extend beyond the 1 1/2" face to give you a
recessed look.
If the material below the appliance which only requires combustible material
extends beyond the 1 1/2" lip, ( ie: a hearth in front of the appliance) non com-
bustible material must be used. Combustible material cannot extend beyond
the bottom lip of the fireplace.
If using the finishing trim for clean face design, the maximum allowable depth
is 1 1/2" .The finishing trim will not fit if it exceeds 1 1/2".
IMPORTANT
Regency Fireplace Products are designed, produced, tested and certified to the highest industry standards.
The finishing of the walls surrounding your Regency Horizon Fireplace is as critical as the installation itself.
The temperatures around linear gas fireplaces are typically higher than would be acceptable for combustible materials. Your Regency
Horizon Fireplace is no exception to this rule. Therefore, the units are specified with non-combustible required materials to specific
dimensions above and around the units. This is due to these areas reaching higher temperature levels than required/acceptable for a
combustible material. To obtain the best, most durable finish around your fireplace, this calls for a high level of care and attention to the
preparation and finish around this appliance, using only the highest quality materials, able to withstand the temperatures produced.
By following the installation instructions in the manual exactly, you will increase your chances of a damage free finish.
While every precaution is taken in providing the recommendations on preparation and finish, given the variations in paint quality, with
temperature limits and workmanship in application, Regency is unable to guarantee the life of the joint compounds, paint or any other
finish materials or workmanship applied to or used in any application surrounding the fireplace. This includes framing as well as finishing.
Over time natural convection from any fireplace can cause discoloration in the area directly above the appliance. Lower quality paints,
under-prepared finishes, poor applications, and any framing discrepancies or in the installation can cause this discoloration process to
be expedited.
Discoloration is not the responsibility of Regency Fireplace Products. This is out of the control of Regency Fireplace Products Ltd.,
therefore not covered under any part of the warranty policy.
While discoloration is not the responsibility of Regency Fireplace Products, we believe careful attention to the recommendations provided
here will result in an aesthetically pleasing result free of issues outlined above.
U1500E-11 Gas Fireplace
Finished
Material
Nailing Strip
Position
1/2"
(13mm)
1"
(25mm)
1"
(25mm)
1/2"
(13mm)
1-1/2"
(38mm)
0" (flush)
Unit
Steel Stud
Unit
Steel Stud
Finished material
Finished material
Finished material

8 | U1500E-11 Gas Fireplace
U1500E-11 Gas Fireplace
Optional Framing Kit
919-807 08.21.17
OPTIONAL FRAMING KIT
1. Construct the timber framing, ensure inside dimensions are 48-5/8" H x
55" W as shown below.
55"
48-5/8""
2. Bend both side nailing strips from the side of the appliance until
positioned as shown below.
Determine the overall combined thickness of the non-combustible board
+ finished material being used. The nailing strips can be adjusted up to
1-1/2" .
Remove top nailing strip (by removing 3 screws) and recycle.
Nailing Strips
Remove Top
Nailing Strip
3. Adjust the nailing strips by loosening 2 screws on each nailing strip -
adjust and retighten screws.
4. Attach both vertical studs (676-036)A to the vertical timber studs and
secure using 6 screws (2 at bottom, 2 at top and 2 on sides) as shown.
NOTE: Ensure the flat side of the steel stud is facing the wood framing.
(676-036)A
Flat side out
5. Secure horizontal steel header stud (606-067) with 2 screws per side as
per diagram.
6. Slide the unit into position. Hook up gas, venting, electrical and
conversion kit (if purchased) prior to installing the remaining steel studs.
7. Secure the upper horizontal steel studs as shown with 2 screws per
side.
8. Secure the 2 remaining large horizontal studs (606-066)A with 2 screws
per side as shown.
Large stud
(606-066)A
Large stud
(606-066)A
Header stud
(606-067)A
Horizontal
stud
(606-067)A
703 A
A
A
1
U1500E

U1500E-11 Gas Fireplace | 9
U1500E-11 Gas Fireplace
Venting Introduction
The U1500E uses the "balanced flue" technology Co-Axial system. The inner liner vents products of combustion to the outside while the outer liner draws
outside combustion air into the combustion chamber thereby eliminating the need to use heated room air for combustion and losing warm room air up the
chimney.
Note: These flue pipes must not be connected to any other appliance.
The gas appliance and vent system must be vented directly to the outside of the building, and never be attached to a chimney serving a separate solid fuel
or gas burning appliance. Each direct vent gas appliance must use it's own separate vent system. Common vent systems are prohibited.
Venting Arrangement for Horizontal Terminations
The diagram shows all allowable combinations of vertical runs with horizontal terminations, using one 90o (two 45o elbows equal one 90o elbow).
Note: Must use optional rigid pipe adapter (Part# 770-994) when using Rigid Pipe Venting Systems.
• Maintain clearances to combustibles as listed in "Clearances" section
• Horizontal vent must be supported every 3 feet.
• Firestops are required at each floor level and whenever passing through a wall.
• A vent guard should be used whenever the termination is lower than the specified minimum or as per local codes.
VENT RESTRICTOR SETTING:
Vent restrictor factory set at Set 0.
Refer to the "Vent Restrictor Position" section for details on how to change the vent restrictor from the factory setting of Set 0 to Set 1 if required.
Note: For horizontal terminations the Regency DirectVent Flex System may be used for installations with a maximum continuous
vent length of up to 10 feet. If longer runs are required, rigid pipe must be used.
2
2
0
0
12
12 20
6
6 14
4
Minimum Height
Requirement
4
14
8
8 16
10
10 18
Vertical Height (Feet) from Centreline
Horizontal (Feet)
16
18
Vent Restrictor
Set 1 - 1-5/8"
Vent Restrictor
Set 0 - 5" Full Open
41-3/8" (1051mm)
20

10 | U1500E-11 Gas Fireplace
Venting Arrangement for Vertical Terminations
Vertical Venting with One(1) 90oElbows (1 - 90o = 2 - 45o) with straight Vertical and or a maximum offset using 2 - 90oelbows
The shaded area in the diagram shows all allowable combinations of straight vertical and offset to vertical terminations, using one 90o elbow, with Rigid
Pipe Venting Systems.
Two 45o elbows equal to one 90o elbow.
• Vent must be supported at offsets.
• Minimum distance between elbows is 1 ft. (305mm).
• Maintain clearances to combustibles as listed in the
"Clearances" section.
• Horizontal vent must be supported every 3 feet.
• Firestops are required at each floor level and whenever
passing through a wall.
• Must use optional rigid pipe adaptor (Part# 510-994.
when using rigid pipe vent systems.
• Refer to the "Vent Restrictor Position" section for details
on how to change the vent restrictor from the factory
setting of Set 0 to Set 1 or Set 2 if required.
U1500E-11 Gas Fireplace

U1500E-11 Gas Fireplace | 11
U1500E-11 Gas Fireplace
Vertical Venting with Three (3) 90oElbows
One 90oelbow = Two 45oelbows.
Option V H + H1 V + V1
With these options,
max. total pipe length
is 30 feet with min. of
10 feet total vertical
and max. 8 feet total
horizontal.
Please note min. 1
foot between 90o
elbows is required.
A) 0' Min. 2' Max. 2' Min.
B) 1' Min. 2' Max 3' Min.
C) 2' Min. 3' Max 4' Min.
D) 3' Min. 4' Max 6' Min.
E) 4' Min. 5' Max 7' Min.
F) 5' Min. 6' Max 8' Min.
G) 6' Min. 7' Max 9' Min.
H) 7' Min. 8' Max 10' Min.
Restrictor Set 0 - 5" Factory Setting
Horizontal Venting with Three (3) 90oElbows
One 90oelbow = Two 45oelbows.
Horizontal Venting with Two (2) 90oElbows
One 90oelbow = Two 45oelbows.
Option V H + H1
With these options, maxi-
mum total pipe length is 30
feet with minimum of 6 feet
total vertical and maximum
8 feet total horizontal.
Please note minimum 1
foot between 90oelbows
is required.
A) 1' Min. 3' Max.
B) 2' Min. 4' Max.
C) 3' Min. 5' Max.
D) 4' Min. 6' Max.
E) 5' Min. 7' Max.
F) 6' Min. 8' Max.
Restrictor Set 0 - 5" Factory Setting
Option V H V + V1 H + H1
With these options,
max. total pipe length
is 30 feet with min. of
12 feet total vertical
and max. 9 feet total
horizontal.
Pleasenotemin.1foot
between90o elbowsis
required.
A) 0' Min. 1' Max. 1' Min. 2' Max.
B) 1' Min. 2' Max. 3' Min. 3' Max.
C) 2' Min. 2' Max. 5' Min. 4' Max.
D) 3' Min. 2' Max. 7' Min. 5' Max.
E) 4' Min. 3 Max. 9' Min. 6' Max.
F) 5' Min. 4' Max. 10' Min. 7' Max.
G) 6' Min. 5' Max. 11' Min. 8' Max.
H) 7' Min. 6' Max. 12' Min. 9' Max.
Restrictor Set 0 - 5" Factory Setting