Tag archive: interior combustion air

Combustion Air Requirements for Fossil Fuel Burning Appliances

Combustion Air Requirements

There are four possible combustion air sources in your home;

House living space
Attic
Crawlspace
House exterior

In some cases combinations of the above combustion air sources is required, but the application of each has to be determined on an individual basis.
EXAMPLE of the combustion air calculations
For your own safety; I want you to examine the location of the fossil fuel burning appliances in your home as soon as you finish reading this chapter (furnace, water heater, fireplace, heating stove, etc.).  If you have a problem figuring combustion air requirements and determining if everything is correct, email me with detailed description of your [...]