Derek Broughton wrote:


Either the breaker / fuse is weak, or there's another 500+ watts of other
load on the circuit.


Yeah, like the _other_ pond heater. Ruth - just because you have two pairs
of outlets doesn't mean you have two circuits. Did both heaters stop
working when the breaker blew?

Both heaters and both pumps from both ponds stopped. When the one new
heater was unplugged and the reset button pushed, all worked again: the
other heater and both pumps. I realize two outlets doesn't equal two
circuits. They are both connected to the switch and that goes 12 feet
into the house and another 12 feet to its very own little hardwired box.

Ruth K