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Wisconsin | Yes, you can use two low ports on the engine. The warmed water will flow to the top of the head and back down to the other port after it's cooled. The height difference between the heater tank and the engine port is still needed, and that is easier with a port high on the engine, but if you don't mind hanging the tank on the ground, it will circulate excellent. Six inches is plenty of height from the top of the tank to the engine port. | |
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