2009 - Volume #33, Issue #3, Page #16[ Sample Stories From This Issue | List of All Stories In This Issue | Print this story | Read this issue]
Simple Venturi Pipe Keeps Home Cool
The sun keeps the black pipe very warm. As hot air rises, it passes through the narrowing pipe at the top, and then expands quickly as it exits, creating a strong upward draft. Meanwhile, cool air under the house is pulled through an 8-in. dia. opening in the floor and into the house.
"It saves money because the air conditioner doesn't have to operate as often, and it also brings in fresh air that's better to breathe," says Gottfried. "During cool weather I install a cap on the pipe."
Contact: FARM SHOW Followup, Ray D. Gottfried, 8904 Sheldon West Dr., Tampa, Florida 33626 (ph 813 792-1373; rgottfri@ tampabay.rr.com).
Click here to download page story appeared in.
Click here to read entire issue
To read the rest of this story, download this issue below or click here to register with your account number.