Furnace Makeup Air Intake

Keep the intake hood away from exhaust vents dryer vents and furnace vents.

Furnace makeup air intake.

Need fresh or makeup air. Fresh air intakes can be in multiple locations throughout your home especially in newer homes built to modern building codes requiring homes to be much tighter than older homes. Irc 2006 section m1602 2. It is easy to install a fresh air intake for a furnace.

Your home furnace air intake location depends on where the furnace is. Wall intakes must also be 10 feet from any exhaust fan discharge outlet unless that outlet is 3 feet or more above the intake location. Answer a few questions about your upcoming project and we will find contractors who can help. Begin your home improvement project with confidence.

Intakes should not be located directly above any wall exhaust or vent. The makeup air system consists of a make up air damper mounted on the return air duct of an hvac system and an intake air hood installed through an exterior wall to allow outdoor air into the home with the two being typically connected by installer supplied standard 6 galvanized sheet metal pipe. Diy friendly cut a 4 25 inch hole in side of house. In many homes the fresh air intake is simply an open duct ran from an outside vent into a basement or any room housing the home s furnace.

Watch my video below. If the outside temperature is 100 f with 85 relative humidity then a standard ventilation fan is bringing in 100 f with 85 relative humidity air. Fans furnaces water heaters etc. Click here to get tim s free funny newsletter.

According to the u s. Modernize will quickly match you with contractors. With a make up air unit that same 10 f air can be tempered to 50 f. Make up air vent is the same thing as a fresh air intake vent.

Department of energy a defining feature of high efficiency furnaces is sealed combustion a process by which outdoor makeup air is piped directly into the burner. Intakes must be protected against rain and pest entry with durable rust and rodent proof materials. Likewise if the outside air temperature is 10 f then the ventilation fan is bringing in 10 f air. The flow of air.