Dear Jim: We are considering installing a heat pump or central air conditioner. We currently have radiant heating. I have heard mini-duct systems are very comfortable and quiet. How do they work ...

The pressure in return and supply ducts should not exceed 20 percent of the fan’s rated capacity. This is the same value used in gauging the pressure drop of an air filter. On a fan rated at 0.5 inch ...

The blower unit is constantly pulling air from the house through return ducts, forcing it through the cooling coil and then back to the house through supply ducts.

A return duct leak in an enclosed combustion appliance zone can do the same. Garages: Ten to 40 percent of a home’s air infiltration first passes through an attached garage. ... There are various ways ...

The ducts are highly insulated and covered with foil. The insulated duct is small enough to run through a wall or ceiling made with stud framing. Instead of the main blower being in a utility room ...

While a combustion air duct that terminates at the floor will allow cold air to come in to the house, it's not nearly as much air compared to the duct connected to the furnace return plenum.

To trace odor, ducts a good place to start Share this: Click to share on Facebook (Opens in new window) Facebook Click to share on X (Opens in new window) X X ...

If you own a good shop vac and leaf blower, the only cost besides your time and effort will be for some wool insulation, tape, an extending duct cleaning brush (about $40) and cardboard.