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rick in Alaska
rick in Alaska
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Does heat go towards the cold or does cold go towards the heat ? Heat will always go towards the cold. The fuel line in the house is warm and the tank outside is cold. In the off cycle, the warm oil wants to drift back to the tank. Get an inline check valve (3/8" flare). Arrow marking towards the fuel pump. Install it before the fuel filter. Purge and call it a day.0December 2020