Woodgeek called them "cheapo" not me... the "vent free" heaters (which I wouldn't install in my house) are what I'd call "cheapo". The little 7500 BTU heater is really for a single room. Two of these (one in each of the back bedrooms) plus the 30,000 BTU gas fireplace in the living room, are [hopefully] my sole heat, but I haven't removed the old oil furnace yet (nor have I turned it on yet this winter; hopefully I won't have to). The Northern Tool one Woodgeek linked to, at 18,000 BTU, is more than twice the size of mine, though they also have an 8000 BTU model. The built in thermostat does quite well at keeping the room at a constant temperature. Operating cost is a lot less than electric baseboard unless you have absurdly expensive propane or absurdly cheap electricity.