- #1
Jocko Homo
- 133
- 0
I got a chance to observe the vents of a gas furnace and was surprised by how warm the outtake vent is. The high efficiency furnace is supposed to be more than 90% efficient so why is the outtake air so warm? It eventually occurred to me that the outtake air can't be any cooler than the air in the house so that probably explains why it's so warm...
...but then another idea occurred to me. The outtake air can't be any cooler than the interior air as long as the heat exchange is passively done but it doesn't have to be. You could use a heat pump, like an air conditioner, to transfer even more heat... so why isn't this done?
If you live in an apartment that's electrically heated, why wouldn't you heat your home with an air conditioner facing the opposite way?
Thank you...
P.S. This is totally unrelated but I also noticed that the intake vent hardly sucked in any air while the outtake vent was blowing out a lot more. I wondered if this air was just being sucked in from the home but I now suspect that perhaps it just seems like a lot more air because it's that much warmer than the air being sucked in. Does this seem plausible?
...but then another idea occurred to me. The outtake air can't be any cooler than the interior air as long as the heat exchange is passively done but it doesn't have to be. You could use a heat pump, like an air conditioner, to transfer even more heat... so why isn't this done?
If you live in an apartment that's electrically heated, why wouldn't you heat your home with an air conditioner facing the opposite way?
Thank you...
P.S. This is totally unrelated but I also noticed that the intake vent hardly sucked in any air while the outtake vent was blowing out a lot more. I wondered if this air was just being sucked in from the home but I now suspect that perhaps it just seems like a lot more air because it's that much warmer than the air being sucked in. Does this seem plausible?