Maybe isolate the heater from the rest of the system,go from battery to a switch to the heater?

Last edited by PapaJ; 12/28/2009 8:22 AM.

1953 Chevy Two-Ton
In the Stovebolt Gallery
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Be careful calling yourself a expert,because an "EX" is a hasbeen and a"SPERT" is a drip under pressure.