Most units at full bore can only raise the temp 40 degrees. At less than "WOT", with the water moving through more slowly, it can get hotter.
In other words, potential max temperature is in inverse proportion to flow rate.
Or in yet other words; get the biggest fucking unit you can get, if you want the fucking shit to actually get fucking hot.
In the real world, running two "house sized" units in parallel can actually get you close to the performance of a tank heater.
One unit, unless the house is for a young couple, with only 1.5 baths, probably won't cut it.
__________________
Insert free thought here.
|