Chimney; Installation - J. A. Roby ATF727 Owner's Manual

Only use approved chimneys of the same dimensions as the appliance exit. Therefore,
you should use 7 inches diameter chimneys for your Atmosphere furnace 727. Chimneys
must be tested upon the ULC S629 CSA, UL103 norms. The Atmosphere furnace 727
wood appliance can be installed onto a masonry chimney following the ULC S635, ULC
S640 and the UL 1777 norms. Do not forget to plan a place for the sweeping of the

chimney.

When possible, it is preferable to avoid an outside chimney or built on an exterior wall,
and this is even more important for colder areas. Outside chimneys generally have a less
efficient draught. They can even have an inverse draught because it is hard to heat them
enough so that they can reach their operating temperature. A greater accumulation of
creosote, a less efficient draught and a lesser performance are some characteristics of cold
chimneys. Draught is proportional to the total chimney height as well as its temperature.
It is therefore possible to get a better draught by increasing the chimney's height and by
reducing the heat loss with an insulated lining. The chimney has to be installed with a
stainless steel lining. Make sure that all smoke pipe joints are really airtight. A leak
reduces the efficiency of the appliance and could even make its utilization dangerous.
A good installation is extremely important for a safe and efficient use of your J.A. Roby
Inc. appliance. If you doubt on the way to install the appliance correctly, seek for
professional installation service. We suggest you to call masters fitters.
1. Withdraw firebricks placed inside the appliance in order to reduce the weight and
to facilitate the installation.
2. You must install a fireproof plate under the appliance, which must exceed of 18
inches at the front and of 8 inches at each side.
3. The option of 4 round exits of 6" diameter or 2 round exits of 8" diameter is
allowed for an installation after the plenum by respecting pressure and air volume.
4. The free space shall not be reduced except under the approval of the authorities
responsible for the application of the building code.
5. Install the chimney and an insulated wall firebreak for an installation passing
through a wall according to the instructions from the chimney manufacturer.
6. Install the firebricks in accordance with the recommended instructions for your
model.
7. The appliance should not be connected to an hot air conduct.
CHIMNEY

INSTALLATION

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