Lochinvar Heat Pump 50-Gallon (HPV050KD 2) is a heat pump (hybrid electric) water heater from Lochinvar with a 46 gallon rated tank and a 52 gallon first-hour rating at a 3 UEF — 1550 kWh/yr certified use, 63 in tall.
Also sold as the A. O. Smith Heat Pump 50-Gallon (HPTV-50 2). This model is the same certified
hardware as the A. O. Smith Heat Pump 50-Gallon (HPTV-50 2), 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)
3
Annual electricity use
1550 kWh/yr
Recovery efficiency
457 %
General
Fuel
Electric
Capacity
First-hour rating
52 gal
Rated storage volume
46 gal
Draw pattern
Medium
Heat pump
Heat pump type
120 Volt Integrated HPWH
Refrigerant (GWP)
R-513A (GWP:630)
Compressor low-temp cutoff
37 °F
Installation
Input voltage
120
Max current draw
15 A
Smart features
Smart / connected capable
Yes
Dimensions
Height
63 in
Diameter
15 in
Certification
ENERGY STAR certified
Yes
Who is the Lochinvar Heat Pump 50-Gallon (HPV050KD 2) for?
Its 52 gallon first-hour rating suits a
household of 2–3 people under DOE sizing guidance.
Estimated running cost: about $264/year at the national
average electricity rate (1550 kWh/yr certified use).
Runs on a 120 V circuit (up to 15 A) — often no new wiring needed.
The heat pump compressor operates down to 37 °F ambient — below that, backup
elements take over.
Is the Lochinvar Heat Pump 50-Gallon (HPV050KD 2) ENERGY STAR certified?
Yes, the Lochinvar Heat Pump 50-Gallon (HPV050KD 2) holds a current ENERGY STAR certification for water heating efficiency (UEF 3).
How much does the Lochinvar Heat Pump 50-Gallon (HPV050KD 2) cost to run per year?
About $264 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 Lochinvar Heat Pump 50-Gallon (HPV050KD 2) need?
The Lochinvar Heat Pump 50-Gallon (HPV050KD 2) runs on a 120 V circuit drawing up to 15 A — many installations use an existing outlet with no new wiring.
Is the Lochinvar Heat Pump 50-Gallon (HPV050KD 2) a smart water heater?
Yes, the Lochinvar Heat Pump 50-Gallon (HPV050KD 2) is connected-capable, with app control and eligibility for most utility demand-response programs.
