We are looking at getting a portable AC unit. Is it possible to vent the heated exhaust air into a fireplace that will exit up and out the chimney. Or would I have to run the 5" flexible exhaust vent up and out the top of the chimney? The chimney is about 20' in length so was wondering if it would be a stretch for the exhaust pump to move air that distance. But seeing how hot air likes to rise, that might be a benefit. Thanks in advance.

Views: 266

Reply to This

Replies to This Discussion

just not much air flow.  5" pipe at .1 in water  is just 40 CFM  If bring it up to a inch water still just 1/3 ton at most.   Most AC unit in free air 2 ton system are in the 8,000 CFM range at very little SP .01 or less and still 15' spit.    I took a small 1/10 hp 240 volt motor out and put 24 inch pipe up 10 feet so to get hot air out of a closed in area, put back a one HP  to over come the SP.  ITs been working with out a compressor change for 8 years before 6 weeks till the compressor burned out with high heat. Heat kills.   Can you bump up the pipe size or out the side? to lower the drag?  

What is the portable AC unit model information?What kind of fireplace is it?

RSS

Forum Discussions

When is it too windy to use blower door?

Started by Brandon Walton in General Forum. Last reply by Kent Browning 3 hours ago. 15 Replies

Electro Magnetic Fields (EMF)

Started by Barry L NewDelman in General Forum. Last reply by Jonathan Beers 7 hours ago. 3 Replies

Affordable Housing Funding

Started by SUZETT MOFFITT in General Forum. Last reply by John Nicholas 9 hours ago. 5 Replies

Latest Activity

Kent Browning replied to Brandon Walton's discussion When is it too windy to use blower door?
"Thanks everyone for all the info! This has been VERY helpful. I have been reading how multi-point…"
3 hours ago
Iain Walker replied to Brandon Walton's discussion When is it too windy to use blower door?
"There have been several studies over the years looking at windspeed effects on blower door tests.…"
6 hours ago
tom atwood replied to Brandon Walton's discussion When is it too windy to use blower door?
"Hi John, A1 is spot on. I have done hundreds of tests here in Maine and have gotten different…"
7 hours ago
Jonathan Beers replied to Barry L NewDelman's discussion Electro Magnetic Fields (EMF)
"EMF is one of the most-researched topics in the history of public health. The World Health…"
7 hours ago

Photos

Loading…
  • Add Photos
  • View All

© 2017   Created by Lawrence Berkeley National Laboratory.   Powered by

Badges  |  Report an Issue  |  Terms of Service