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Forum: Electrical: Batteries, Generators & Solar 18-09-2017, 21:05
Replies: 93
Views: 9,187
Posted By GILow
Re: Solar, off grid and heat problem

Your basic electrical equation is OK but your reasoning is incomplete.

Yes, the controller can (theoretically) handle the power BUT, power is volts x amps.

If your panel voltage exceeds the...
Forum: Electrical: Batteries, Generators & Solar 18-09-2017, 16:37
Replies: 93
Views: 9,187
Posted By GILow
Solar, off grid and heat problem

The heaters being discussed are fuelled by diesel but use the 12 volt battery supply to start the burner and to run the associated fans and/or pumps to distribute heat from the diesel burner.

...
Forum: Electrical: Batteries, Generators & Solar 17-09-2017, 12:52
Replies: 93
Views: 9,187
Posted By GILow
Re: Solar, off grid and heat problem

Running the heater all day is crazy. Partly because the temperature does not need to be that high and partly because the rate of heat loss is directly proportional to the difference in temperature...
Forum: Electrical: Batteries, Generators & Solar 17-09-2017, 02:15
Replies: 93
Views: 9,187
Posted By GILow
Solar, off grid and heat problem

A little webasto diesel preheater of the sort used to preheat cars in Europe is dirt cheap secondhand on fleebay. Set one up to heat a big drum of water in the cabin and you are good to go. One...
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