Question:
How about a (swimming) pool heater comprising low-voltage electrolysis
with
immediate combustion to heat the pool water.
Maybe I'm thick or something, but how exactly is this going to be any
different from pumping the same amount of electricity through a heater
element?
Answer:
I think you've hit the nail on the head ;) Seriously, tho, I'm proposing a
heat pump, using endothermic electrolysis to draw heat out of the
environment, and burning the resultant gases to add heat to a specific body
(the pool).
Less efficient that just heating the water with an immersion heater which is
99% efficient.
I suppose in a way heating a swimming pool would be a good use for any waste
heat produced from electrolysis.