Sealed Combustion
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All About Furnaces and Duct Systems
Most forced-air heating systems are still poorly designed and installed
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Spray Foam Insulation Does Not Work with All HVAC Systems
Before you use spray foam insulation in an attic, make sure the HVAC system is compatible
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Sealed-Combustion Appliances and Hot Tub Parties
In a tight house, combustion appliances and exhaust fans are all fighting over a limited supply of indoor air
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How to Provide Makeup Air for a Wood Stove
Should your wood stove get ducted outdoor combustion air direct to the firebox, or to a location near the stove — or perhaps no ducted outdoor air at all?