no they are gas(or in my case LP) but they zone heat ive got one 35,000btu in the main part of the house and a 20,000btu one on the kitchen side. They only heat the areas you want so like the laundry, pantry, closets, and bath rooms we keep the doors closed. The biggest draw back is you have to keep all doors open to the rooms you want heated like the bed rooms, the biggest advantage is they work even when the power is out. They are termostat controled and have built in optional fans Here is what i have .... http://www.factorybuysdirect.com/procom-reconditioned-dual-fuel-vent-free-infrared-heater-30-000-btu-model-md5tpf/?gclid=CNmX3o_L7rsCFecRMwodgzQACA and.... http://www.factorybuysdirect.com/procom-reconditioned-dual-fuel-vent-free-infrared-heater-20-000-btu-model-md3tpf/ One i have mounted in front of my fire place(used a couple boards to hang it there) in the living room the other is in the hallway wall off the kitchen