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toddb
Oct 10, 2015Explorer
This is the setup. Atwood 6gal water heater, 140* thermostat. Topsflo PV water pump/filter. The radiator is about 8x8x2.5" thick with a 140mm pc case fan that moves a good amount of air. I epoxied a well on the side of the water heater for a thermostatic switch, it closes at 100* and opens at 85* to interlock the pump and fan. I turn on the water heater manually then let the thermostat control the pump and fan via small relay.
It's quiet, doesn't dry out the air and pulls 1.2-1.3A running and the propane consumption is about 35% of the old heater. It'll cycle on for about 25min and off about the same, the water heater usually cycles on during the pump off time or close to it.
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