We are no longer offering this product.

The below information is presented for informational purposes only. You may also find similar items in the category.

Stiebel Eltron Accelera 300 - 80G Heat Pump Water Heater

Stiebel Eltron Accelera 300 - 80G Heat Pump Water Heater
Stiebel Eltron Accelera 300 - 80G Heat Pump Water Heater
Item code Brand name Model number
STIACCELERA Stiebel Eltron Accelera-300
FREE SHIPPING within lower 48 states! *Plus check state and federal rebates - payback can be as little as 2 years!

Stiebel Eltron
Accelera 300 - 80 Gallon
Heat Pump Water Heater

Heat pumps have been around for decades, but a heat pump water heater is a newer concept. The Accelera® 300 works like an air conditioner but instead of dumping the heat outdoors, it puts it into the water. The Accelera’s compressor and fan consume only 1kWh of electricity to generate the heat equivalent of 3 – 5kWh. The efficiency of the unit goes up with increasing ambient air temperatures. This groundbreaking efficiency redefines what a water heater is capable of. Plus, payback can be as little as 2 years! Check your local, state, and federal Incentives here.


  • 80 gallon storage capacity - designed to give 50 gallons of hot water before the backup heating element activates
  • Reduces hot water costs by up to 80% by extracting energy from the ambient air around the unit - place it in the warmest spot you can
  • Cools and dehumidifies the air around it
  • High Energy Star Rating - 2.73
  • Uses a single heating element - 1700W
  • Only wrap-around aluminum condenser on the market - means no possible contamination of potable water
  • Reliable German technology and manufacturing backed by a 10-year warranty
  • CSA/ETL Listed

      Accelera 220E Accelera 300
    Tank Capacity 58 gallon (220 litre) 80 gallon (303 litre)
    Energy Star Rating 3.09 2.73
    DOE Est Annual Energy Usage 1406 kWh/yr 1391 kWh/yr
    First Hour Rating 50.3 gallon 76.2 gallon
    Max DHW temperature 149°F/65°C 140°F/60°C
    Voltage/Frequency (Single Phase) 220-240V/ 60/50Hz 240-208V/ 60/50Hz
    Required Circuit Breaker 15A
    Max Power Draw 2150W 2200W
    Rated Power, Booster Element 1500W 1700W
    Operating Temperature Range 42-108°F/ 6-42°C
    Condensate Connection 3/4" Male NPT to 1/2" Barbed Elbow
    Water Connections 1" NPT Union to 3/4" NPT
    Anode Type Impressed Current Anode Sacrificial (replaceable)
    Weight (Empty/Full) 265 lbs/ 749 lbs 287 lbs/ 952 lbs
    Dimensions 61" H/ 28" Diameter 74" H/ 26" Diameter


  • The heat pump system contains a fan that forces air through an evaporator (1). The evaporator contains a liquid refrigerant. When this refrigerant evaporates, it extracts heat from the ambient air.
  • The now warm gaseous refrigerant passes through the compressor (2) which increases its pressure. As the pressure increases, the temperature of the refrigerant rises. The refrigerant turns back into a liquid which is now hot.
  • The hot refrigerant then passes through the condenser (3), which is wrapped around the water tank, transferring its heat to the water.
  • The refrigerant which is now cool then passes through an expansion valve (4), where it goes back into a gaseous state and the process begins anew.

    See more technical information in the Product Documentation section above!

    Click here for BBB Business Review ASE NESEA Member
    Paypal Visa MasterCard Amex Discover
    McAfee SECURE sites help keep you safe from identity theft, credit card fraud, spyware, spam, viruses and online scams