12-09-2014, 12:07 PM
FloJet 04405143A or Shurflo 2088-554-144 (same pump, different color plastic, both have the built-in pressure switch) have enough pressure+flow for the 5L water heater; this works even better with a Shurflo 182-200 mini pressure tank. Recommend the Shurflo 255-313 mesh prefilter. Got everything from Amazon.
Also available in 24V but these are harder to find.
One design issue: the small DC pumps have very little draw, so mount them low.
Also available in 24V but these are harder to find.
One design issue: the small DC pumps have very little draw, so mount them low.