100 gallon heat pump water heaters

No maker sells a 100 gallon heat pump water heater. Residential models stop at 80 gallons, and the next size up is a 119 gallon commercial unit. For a household that needs more than an 80 gallon tank delivers, the usual answers are an 80 gallon model with a mixing valve and a higher tank setting (which stretches it by roughly a quarter), two smaller tanks piped together, or the commercial unit. All three sizes are below. Nearest sizes: from $2,235 to $15,722 for 10 models from 6 stores, prices checked daily.

Check the size your household needs and what it costs to run.