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It's entirely reasonable if they have a tankless water heater + electric heat. The amount of powerdraw that can be required during a shower means I would trip a
by mholm 5y ago
It's entirely reasonable if they have a tankless water heater + electric heat. The amount of powerdraw that can be required during a shower means I would trip a 200A circuit during the winter. Average powerdraw would certainly be much lower, but you have to prepare for the peaks. Adding in an electric pool heater, more square footage to heat, and probably a fancy electric range, means you could hit 400A somewhat easily if you aren't being careful.
- thatfrenchguy 5y agoIn a newly built 2500sqft house you should need a lot less than 200A for this, it should have almost perfect insulation. That, and tankless water heater are stupid, frankly.
- briHass 5y agoNobody should be running electric heat (resistance heat, COP=1), since we now have heat pump technology that can operate below 0F and do so with COPs of at least 2. Electric tankless WHs are also a terrible idea in almost all cases. A HPWH or standard electric tank would be much better for overall power demand.