Spartherm Insert-600, Installation And Operating Instructions Manual

14

4.6 MASONRY

4.6.1 TYPICAL EXISTING MASONRY

WARNING

DO NOT CONNECT THIS APPLIANCE TO A CHIMNEY 
FLUE SERVING ANOTHER FIREPLACE. DO NOT CON-
NECT TO ANY AIR DISTRIBUTION DUCT OR SYSTEM.

You can install your masonry inserts using your 
existing masonry chimney liner. To do so, follow the 
guidelines below. If you are using a masonry chimney, 
it is important that it be built in compliance with the 
specifications of the Building Code in your region. It 
must normally be lined with refractory bricks, metal 
or clay tiles sealed together with fire cement. (Round 
flues are the most efficient).

 Remove the wood insert damper or fasten it perma-
nently open. We recommend the following method of 
sealing off the damper area around the liner:
 
 Measure the throat of the wood insert and mark 
this shape on a piece of 24 gauge sheet metal (flue 
cover); cut a six-inch (6 3/4” / 171mm) hole to lie 
directly below the wood insert flue opening. Allow two 
inches of material for a flange on all sides and cut to 
these measurements. Bend down the flanges. If you 
have never done this before, it might be a good idea 
to make a cardboard pattern and test it first. Fasten 
this flue cover in position as high as possible with two 
masonry screws per side through the flanges into the 
wood insert.

I

n Canada: Install only flexible or solid chimney liner 
from the top of the chimney to the insert flue collar. 
Attach a stainless steel liner connector or elbow to the 
liner and insert onto the flue collar. Fasten with three 
screws. Secure the top of the liner to the chimney cap 
using a liner support and chimney flashing. Cap the 
top of the chimney liner assembly using an approved 
rain cap.

In the United States: While it is not required, it is rec-
ommended that a chimney liner be installed that is 
continuous from the insert to the top of the chimney, 
particularly when the insert is installed in a basement. 
For this type of connection, use the “In Canada” instal-
lation instructions above.
If a continuous liner is not installed, a “direct flue 
connection” must be made. The direct flue connection 
requires a non-combustible connector that extends 
from the insert into the chimney flue liner and also the 
installed flue cover to be sealed below the entry point 
of the connector to prevent dilution of combustion 
products in the chimney flue with air from inside the 
house. Cap the top of the chimney using an approved 
rain cap.

THIS UNIT IS NOT TESTED TO BE BUILT INTO A FAC-
TORY BUILT FIREPLACE.