Electrical requirements for tankless water heater



assuming your delt T is in F degrees I get 19.8 kW
using 3.785 kg per gallon and a specific heat of 4.187 J/g K
it is interesting at $0.15 per kW hour it costs about 5 cents a minute to take a shower.
also a 45 deg F rise is a pretty cold shower, need more like 70 F rise, 50 to 120...no?
Mark
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wrote:

15 THOUSAND watts - the RT9 is 9000 watts. On 240 volts that is 40 amps!! The big one is 37000 watts - 160 amps!!!!!
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On Thu, 18 Sep 2014 10:15:34 -0400, snipped-for-privacy@aol.com wrote:

The one he wefferenced is 9kw
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