Iím dry camping right now. Itís cold. Solar panel has done a good job keeping up. Pushed the system too far yesterday, so Iím on the Honda generator now. On 120v AC the furnace uses the Rooftop air conditioner fan. Big, noisy and sucks electric, (thus gas.) The little heater fan works just fine.
How to I tell the big noisy rooftop fan to step aside and let the little fan blow the furnace?