out 112,000 BTUs (40 amps/5.8 KW). I'm thinking that a larger unit that puts out 141,000 BTUs (50 amps/6.4KW), would heat the pool quicker and req uire less time on, thus use, in theory, less electricity - but it's about $
500 more expensive than the smallw long it will take to break even on this with running it for only a couple days per week.
ewed? Is it worth the extra cost?
Most houses here have electricity here is at 230volts/single phase/
100A. There is no 120 volts except on construction sites when step down transformers are used.However if you have more than say 15Kw continuous heating, you will be expected to get three phase (depending on location).
Electric heating of swimming pools is virtually unheard of due to cost, there is a gas supply to 99% of places.
Outdoor pools are uncommon here, there's probably only ten days/year warm enough to use one.