Thank you, John D.
I found this GenSet calculator (one of many) at the following link:http://www.harborfreightusa.com/guide/select_generator/
I am modeling my initial need from the specs on a 31’ Airstream I have access to. It has a 110V/30A power system. It has a 3Way power refer (12VDC/110VAC/LP Gas), a 6Gal electric water heater, a central LP gas forced air heating system, and a roof AC unite. All this on a 30A main breaker. I would reason that (winter operation) the refer, the central furnace and the water heater might come on and run at the same time. By the same token, the AC unite would replace the Heater in summertime. That’s where I came up with the 2500Watt calculation. Just a modle now. . .
I work at home on the internet. So I am calculating:
• Internet access router = 25-30 Watts
• Laptop (typical) = 50 Watts
Occasional/mandatory: (24hr available)
• Refrigerator = 700/2200 (run/start)
• Deep Freeze = 700/2200 (run/start)
(I think these are a little high. . .)
• Microwave = 600 Watt
• Washing machine (front load) =
• Dryer (gas) = 700/1800 (run/start)
• Cistern pump = 800/1300 (run/start)
Misc. lights – florescent – 15W/ea (60W-light)
Its going to be tight – I’m trying to size for worst case – 6 hours/day charging and operation, to cover the 18hrs with no sun. . . going to require a substantial battery bank. . . The question is. . . can I recharge it in 6 hrs. . .
The cistern (water tower) anti-stagnate paddle was going to be a stand alone thing – 1500 gal tank on a 20’ water tower with a tiny, gear reduced 12V motor to slowly turn the paddle – 5-10RPM – I don’t think it has to run constantly so I was going to simply mount a set of panels on top of the tank – just run when the sun’s up. . . The pump runs when the rain barrel float says “full”, then it pumps 50Gal up into the tower and shuts off. Almost sounds like I need closer to 3Kw. . .
How’m I doin?. . .