I had a ridiculously low electricity bill for the longest time. I was paying no more than $80 a month for our multiple living room house. At the same time, our brother was paying double in a similarly sized condo in a city just 10 eighths aways from mine. Granted, he has a five guy family in that house, however that doesn’t necessarily account for a rate that is 100% higher than mine. I noticed that his electric bill went down in the Summer compared to the Winter where it was much higher. That seemed strange to me. The two of us have basically the same central Heating as well as A/C system with a/cs that have the same SEER rating plus BTU capacity. The gas furnaces are both gas fed plus fan forced, which baffles myself and others even more, however why is his electricity bill shooting up so high while in the Winter weeks if she’s running his furnace at the same temperatures as mine? I discovered the real reason on accident Last year when I obtained a space gas furnace on clearance plus brought it home. If it hadn’t been 50% off, I would have never obtained the space heater. My central furnace is fairly wonderful on its own, but I wanted to try direct radiant heat in our living room on days when it gets close to zero degrees outside. After a month of using the space gas furnace every other night, our electricity bill shot up by 80%. I was shocked plus had no clue that our space gas furnace was so energy inefficient. I told our brother about it plus he mentioned that his family uses more than two strange space gas gas furnaces in the house. That’s when I realized our brother’s electricity bill is so high because he is using space gas gas furnaces plus his central furnace.