Gridless heat pump water heater 80-Gallon is a heat pump (hybrid electric) water heater from Gridless with a 74 gallon rated tank and a 91 gallon first-hour rating at a 4 UEF — 1240 kWh/yr certified use, 41.7 in tall.
Also sold as the Bosch Water heater 80-Gallon. This model is the same certified
hardware as the Bosch Water heater 80-Gallon, published under a
different brand — full details, comparisons, and pricing live on that page. The
certified figures below are identical.
Efficiency
Uniform Energy Factor (UEF)
4
Annual electricity use
1240 kWh/yr
Recovery efficiency
450 %
General
Fuel
Electric
Capacity
First-hour rating
91 gal
Rated storage volume
74 gal
Draw pattern
High
Heat pump
Heat pump type
240 Volt Integrated HPWH
Refrigerant (GWP)
R-134a (GWP:1430)
Compressor low-temp cutoff
37.4 °F
Installation
Input voltage
240
Max current draw
24 A
Smart features
Smart / connected capable
Yes
Dimensions
Height
41.7 in
Diameter
21.8 in
Certification
ENERGY STAR certified
Yes
Who is the Gridless heat pump water heater 80-Gallon for?
Its 91 gallon first-hour rating suits a
household of 5+ people under DOE sizing guidance.
Estimated running cost: about $211/year at the national
average electricity rate (1240 kWh/yr certified use).
Needs a 240 V circuit; at 24 A max draw plan for a 30 A breaker (NEC 125% continuous-load rule).
The heat pump compressor operates down to 37.4 °F ambient — below that, backup
elements take over.
Is the Gridless heat pump water heater 80-Gallon ENERGY STAR certified?
Yes, the Gridless heat pump water heater 80-Gallon holds a current ENERGY STAR certification for water heating efficiency (UEF 4).
How much does the Gridless heat pump water heater 80-Gallon cost to run per year?
About $211 per year at national average energy rates, based on its certified annual energy use under the DOE test draw pattern. Your rate and usage change this figure.
What electrical circuit does the Gridless heat pump water heater 80-Gallon need?
The Gridless heat pump water heater 80-Gallon runs on a 240 V circuit drawing up to 24 A; per the NEC 125% continuous-load rule plan for at least a 30 A breaker (check the installation manual for the required circuit).
Is the Gridless heat pump water heater 80-Gallon a smart water heater?
Yes, the Gridless heat pump water heater 80-Gallon is connected-capable, with app control and eligibility for most utility demand-response programs.
