Andrmorr
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- Location
- Burlington, NC
Since you are idling your truck anyway what about running a coolant line in/out from the engine and just powering a small fan to blow thru a heater core?You may want to look for a smaller wattage heater if 1500w gets the cab hot quickly and short cycles.
Steady low/med heat, would use 24v (no inv), and low drain for batts...Plus you don't have to listen to (or pay for) high idle all night...
The other thought was maybe put overdrive pulleys on the alt so you get hi idle perf at low idle...even at highway speed the engine turns well below alt speed limit so it shouldn't be a problem going down the road...