Let's say I stay upstairs alone in a 2600 sq ft 2-story house. I can
turn on the gas heater of the house for upstairs only, set the
thermostat to (say) 70 F. Or I can use a personal haolgen far-infrared
heater aiming at me a few feet away, set at the lowest level using 350
watts. Which costs less? You would think the latter is cheaper because
the heat is localized. But it's continuous as opposed to the house
heater coming on and off. And also the house heater uses gas, which
costs less than electricity. If I didn't make myself clear, let me
know. Thanks.