Among heat pump water heaters, the Stiebel Eltron Accelera 300 has the largest capacity (80 gal.), highest energy factor (2.51), lowest power input (2.2 kW) and lowest power consumption
The new edition of the guide helps
homeowners decide which improvements will yield the most bang for
their buck and help them incorporate energy efficiency into future projects.
The system shown was installed to provide
domestic hot water to a high-end home with six bathrooms. The installer
selected the largest 119-gallon indirect water heater available from his local
supplier.
