these heaters burn heating fuel and are 12 volt powered.one will heat up to 1000 square feet.perfect for cabins, rv's or small homes.fuel consumption ranges from .5 to 1.5 gallons per 24 hr day .if you would like to know more please call.1 gallon milk container in pic is for size comparison.these heaters are new in box with 4 gallon fuel tank.
