Installing ductwork for heating and air conditioning is a bit like putting together a huge three-dimensional jigsaw puzzle. The basic rules of the game, however, are the same, whether you’re … ...

Q: I plan to vent my range hood into the attic. Is this a good idea or is there a better way? –M. Ashrafi A: It is definitely not a good idea to vent a range hood into the attic. Ideally, the… ...

Trying to install standard metal ducts with an outlet in every room is difficult, especially in two-story homes. Unico's mini-duct blower is modular so it also installs easily in the attic.

Holes and leaks in attic ductwork or poor connections can allow cooled air to escape into the attic before it ever reaches the intended room.

One is installing an air handler in the attic and one in the basement. Then, ductwork could be run over the attic floor and through the basement to ceiling and floor registers.

For more information on duct lengths, duct bends, exhaust hoods, roof hood manufacturers and other tips on installing dryer vents, send $2 and your name and address to Tim Carter at the above address.

“We reviewed the AC installation, checking all ductwork and the attic unit to check for air leaks,” the reader says. “We found none. We even went as far as to isolate the fresh-air exchange ...

The hot grease vapor touches exhaust fan filters, fan blades, the ductwork, your cabinets, the ceiling and other surfaces in your kitchen. It then condenses on those surfaces.