Ariston Heat Pump Water Heater 80-Gallon (ARIHPWH-80-T)
Ariston Heat Pump Water Heater 80-Gallon (ARIHPWH-80-T) is a heat pump (hybrid electric) water heater from Ariston with a 74 gallon rated tank and a 88 gallon first-hour rating at a 4.1 UEF — 1210 kWh/yr certified use, 59.8 in tall.
Our take
Ariston's 74-gallon flagship posts a 4.10 UEF at the 90th percentile — about $206 a year High-draw, $11 under the class median — with an 88-gallon first-hour rating exactly on the median and 474% recovery efficiency near the top of the cohort. The R-513A refrigerant carries less than half the GWP of the R-134a that dominates this class. At 59.8 inches tall and 20.2 across it stays reasonably compact, on a 240 V / 21 A circuit. Connected-capable. Lennox sells the identical certified unit, making 2 badges for this spec.
Best for: Top-decile efficiency, median delivery, lower-GWP refrigerant — no drama.
Trade-off: Two badges only; the giant rebadge nets offer more price leverage.
Efficiency
Uniform Energy Factor (UEF)
4.1
Annual electricity use
1210 kWh/yr
Recovery efficiency
474 %
General
Fuel
Electric
Capacity
First-hour rating
88 gal
Rated storage volume
74 gal
Draw pattern
High
Heat pump
Heat pump type
240 Volt Integrated HPWH
Refrigerant (GWP)
R-513A (GWP:630)
Compressor low-temp cutoff
35 °F
Installation
Input voltage
240
Max current draw
21 A
Smart features
Smart / connected capable
Yes
Dimensions
Height
59.8 in
Diameter
20.2 in
Certification
ENERGY STAR certified
Yes
Who is the Ariston Heat Pump Water Heater 80-Gallon (ARIHPWH-80-T) for?
Its 88 gallon first-hour rating suits a
household of 5+ people under DOE sizing guidance.
Estimated running cost: about $206/year at the national
average electricity rate (1210 kWh/yr certified use).
Needs a 240 V circuit; at 21 A max draw plan for a 30 A breaker (NEC 125% continuous-load rule).
The heat pump compressor operates down to 35 °F ambient — below that, backup
elements take over.
Also sold as
The Ariston Heat Pump Water Heater 80-Gallon (ARIHPWH-80-T) is certified hardware that Ariston and its partner brands
publish under 2 names. The same specifications apply to every
variant:
Is the Ariston Heat Pump Water Heater 80-Gallon (ARIHPWH-80-T) ENERGY STAR certified?
Yes, the Ariston Heat Pump Water Heater 80-Gallon (ARIHPWH-80-T) holds a current ENERGY STAR certification for water heating efficiency (UEF 4.1).
How much does the Ariston Heat Pump Water Heater 80-Gallon (ARIHPWH-80-T) cost to run per year?
About $206 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 Ariston Heat Pump Water Heater 80-Gallon (ARIHPWH-80-T) need?
The Ariston Heat Pump Water Heater 80-Gallon (ARIHPWH-80-T) runs on a 240 V circuit drawing up to 21 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 Ariston Heat Pump Water Heater 80-Gallon (ARIHPWH-80-T) a smart water heater?
Yes, the Ariston Heat Pump Water Heater 80-Gallon (ARIHPWH-80-T) is connected-capable, with app control and eligibility for most utility demand-response programs.
