We built our house in 2009 (1700 square feet), and installed 14 of the Intertherm heaters. We installed them ourselves using a number 12 wire. They work beautifully. I would never have any other type of heat. There are seven thermostats in our house. Each bedroom has its own, one in the dining room, living room, utility room, and MY man cave. One thing I like about them is there is no maintenance, except dusting. The heat flow is very even and constant, when on. Ours came with a twenty year warranty, and expect them to go way beyond that. We are total electric, but they do not cost a lot to operate. We ive in Maine and it gets quite cold, but our electric bill is comparable to the cost when we were heating with oil and firewood, and much cleaner. After the first couple of years we rearranged the heaters during the summer, and it was as simple as unhooking them, and hooking them to different thermostats. We put the master bedroom bathroom on the dining room, a second bathroom attached to the thermostat in the guest room, and the half bath on the utility room.