Regency L900-LP User Manual

Regency

®

 L900 Direct Vent Gas Fireplace

INST

ALLA

TION

7)  Ensure that  the pipe clearances to 

combustible materials are maintained 
(Diagram 5). Install the termination cap.

 

The four wood screws provided should be re-
placed with appropriate fasteners for stucco, 
brick, concrete, or other types of sidings.

8)  Before connecting the horizontal run of vent 

pipe to the vent termination, slide the Wall 
Thimble  over the vent pipe. The wall thimble 
is required for all horizontal terminations.

9)  Slide the appliance and vent assembly 

towards the wall carefully inserting the vent 
pipe into the vent cap assembly. It is important 
that the vent pipe extends into the vent cap 
suffi cient distance so as to result in a minimum 
pipe overlap of 1-1/4 inches (32mm). Secure 
the connection between the vent pipe and 
the vent cap.

10) Install wall thimble in the center of the 11"  

(279mm) square and attach with wood screws 
(Diagram 7).

Install the vent system according to the 
manufacturer's instructions included with the 
components.

1)  Set the unit in its desired location. Check to 

determine if wall studs or roof rafters are in 
the way when the venting system is attached. 
If this is the case, you may want to adjust 
the location of the unit. Rough in the gas 
preferably on the right side of the unit and 
the electrical (junction block is on the left 
side) on the left.

2)  Direct Vent pipe and fi ttings are designed with 

special twist-lock connections to connect the 
venting system to the appliance fl ue outlet. 
A twist-lock appliance adaptor is required.

3)  In conjunction with the Simpson Dura-Vent 

Direct Vent GS system. Install the adaptor 
after the unit is set in its desired location. 
Put a bead of high temperature silicone 
inside the outer section of the adapter and 
a bead of Mill Pack on the inner collar. Slip 
the adapter over the existing inner and outer 
fl ue collar. Fasten to the outer collar only with 
the 3 supplied screws (drilling pilot holes will 
make this easier).

4) Level 

the 

fi replace and fasten it to the framing 

using nails or screws through the top and 
side nailing strips.

5)  Assemble the desired combination of pipe 

and elbows to the appliance adaptor and 
twist-lock for a solid connection.

6)  Mark the wall for a 11" x 11" (279mm x 

279mm) square hole. The center of the 
square hole should line up with the center-
line of the horizontal pipe. Cut and frame the 
11 inch  (279mm) square hole in the exterior 
wall where the vent will be terminated. See 
diagram 2 for center line requirements.

 

If the wall being penetrated is constructed of 
non-combustible material, i.e. masonry block 
or concrete, an 8" (203mm) diameter  hole 
is acceptable.

Note:
 a)  The horizontal run of vent must be level, 

or have a 1/4 inch 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 the possibility of a fi re. 

 

b)  The location of the horizontal vent 

termination on an exterior wall must meet 
all local and national building codes, and 
must not be blocked or obstructed.  See 
"Exterior Vent Termination Locations" 
section for more details.