I have two ventless propane heaters for emergency heat in the event of a power outage. I’ve had to use them a few times in the 26 years we’ve had this drafty hundred year old house. They’re very effective, but they do generate a little moisture in the air.

quote:

Originally posted by Gustofer:
They can be at any height. CO is close to the same weight as air and mixes readily.

Yep. OP here. I have some that plug directly into the wall socket.

Biker_dude - Not to de-rail your thread but this thread has me rethinking the “Natural Gas” freestanding/wall mount Infrared heater I just purchased. Can anyone comment if the same results stand true for a Natural Gas wall mount heater as it does for a propane. We have have four CO2 detectors in the house we just purchased. Thanks.