A-Maize-Ing Heat NRP620-9, Installation Manual

Page: 8 / 24

NRPIM620-9-20131212 Rev 1 Page 8 of 24
Venting
WARNING
Failure to provide correct chimney venting can lead to an increase in carbon monoxide
and combustion gases into the building resulting in death, serious injury, and/or
property damage.
Connect the A-Maize-Ing Heat
®
furnace to a lined masonry chimney acceptable to the authority
having jurisdiction. USA installation may also use a residential type Class A and building heating
appliance chimney. Canadian installation may also use a 6” (minimum) metal flue pipe using sheet
metal screws. Do not connect the A-Maize-Ing Heat
®
furnace to any chimney flue servicing any
other heating appliance, as recommended by the Nation Fire Prevention Association. All chimney
connections must meet the approval of the local building inspector and fire marshal and conform to
all local, state, provincial and national codes.
Venting may be provided using a lined masonry chimney, or a class “A” listed chimney. The chimney
serves two purposes:
1. Provide “draft” to the furnace for the continuous supply of fresh air into the appliance making
proper combustion possible.
2. Exhaust smoke and combustion gases resulting from the burning biomass fuel.
Important Vent Installation Requirements
 The minimum distance between the top of the furnace and a combustible ceiling surface must
be 32”.
 The connection from the chimney to the furnace must be made with a 6” black pipe.
 The minimum distance between the connection pipe and a combustible wall surface must be
18”.
 Do not use more than two elbows in the connection between the furnace and the chimney.
 Horizontal elements of the connection pipe should have a minimum rise of ¼” per foot of run
to allow condensation to flow back into the furnace.