jodebg
Platinum Member
I have been using outside air for my wood boiler for years. Very happy with the results. Here are some photos of a simple way
to access, direct, and control the air flow to the area of combustion.
-First photo shows the outside air source at the lower primary air intake, and also in the upper secondary air intake.
-Second photo shows the basement window with a round hole cut in it and a 6" pvc drain pipe accessing the outside air.
-Third photo shows the drain pipe run through the joist area. Above the boiler the pipe is capped and 2 smaller pvc pipes
run down to their respective air intake areas.
No fan needed. Outside air is always running through the pvc pipes to the stove with higher concentrations of oxygen for better
combustion. The sliding gate near the window allows for full control of the outside air flow, and also acts as a shut off.



to access, direct, and control the air flow to the area of combustion.
-First photo shows the outside air source at the lower primary air intake, and also in the upper secondary air intake.
-Second photo shows the basement window with a round hole cut in it and a 6" pvc drain pipe accessing the outside air.
-Third photo shows the drain pipe run through the joist area. Above the boiler the pipe is capped and 2 smaller pvc pipes
run down to their respective air intake areas.
No fan needed. Outside air is always running through the pvc pipes to the stove with higher concentrations of oxygen for better
combustion. The sliding gate near the window allows for full control of the outside air flow, and also acts as a shut off.


