Quote:
Originally Posted by oil pan 4
You don't need forced circulation for 1000w.
Waste of time + money.
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I disagree. Any heater, regardless of output, will certainly benefit from the use of a circulation pump.
Quote:
Originally Posted by oil pan 4
If you still want a pump don't use a dish washer pump, that sounds like a bad idea on so many levels. Get something that can handle engine bay heat, hot coolant and cooling system pressure for years.
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Agree completely, though I'm not sure the DW pump would be a complete failure... I was planning to do some testing before putting it in (my residential water supply is ~60 psi), and locating the heater so it would work properly even without the pump operational. Even at that, there would still be several long term durability questions left unanswered.
I may have an OEM auxiliary coolant pump like the one you've suggested on it's way soon. If it works out I will feel much better knowing I've got the right tool for the job installed under the hood. I will probably install ball-style shut off valves in line with this heater/pump system just in case.