Have an added room on side of house that gets cold in winter But four large windows that get the afternoon sun Figuring a Flat Panel 400W Electric Heater set Low One or Two 12 Volt Batteries Inverter/Charger Two or Three 100W Panels Any foresight into problems with this idea And how much time does one figure to get out of two 12v batteries heating at 400 watts. Might do three But I am thinking solar exposure time is about 4 hours
- posted
9 years ago