We have NG fueled Monitor heaters for both air and water- both vented. Which device sends more heat to where it's supposed to go per unit of fuel?
Roommates disagree with one thinking it's air and the other water. She takes long showers with hot water with the tub plugged so the hot water will eventually warm up the house. They split the heating bill, so I have to listen to the argument every month. I pay the mortgage, so don't care one way or another.
Read more: Heating of water or air more efficient?
