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Old 11-15-2019, 08:51 PM   #36
Ken E.
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City: Bellingham WA
Country: United States
Vessel Name: Hatt Trick
Vessel Model: 45' Hatteras Convertible
Join Date: Nov 2016
Posts: 1,040
Steve, an alternative to the Wolverine-type pan heaters are the immersion type with a heating element in the engine's internal coolant, installed in a block port with pipe threads. I have these, made by Kim, called Hot Starts. I only use them before winter starts or during sub-freezing weather. They are 500 watt and I run them on timers, 2 hours on, 2 hours off, alternating between engines. The engine room stays about 25 degrees above ambient. I've done this through 15 winters with both Detroits and Cummins with no ill effects.
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