DoesTheMath

RELIANCE WATER HEATERS HPTS-50 2**

3.8 UEF DOE CCD · 2026-09-19
A

Grade A: where this UEF sits among the 426 models in its class, lowest (G) to highest (A). A position, not an official label. How the grade is set

An electric tank, medium draw pattern (a typical three- or four-person household, about 55 gallons on a busy morning).

If you are verifying the RELIANCE WATER HEATERS HPTS-50 2**, it uses 855 kWh of electricity a year at the federal test's daily draw. That figure belongs to the medium draw pattern, the standard daily hot-water usage DOE tests against. It sits 2,676 kWh below the 3,531 kWh median for electric tanks at that pattern, 16th lowest of 426.


Energy use per year

855 kWh a year

Computed by this site from the registry's UEF and the federal test's daily hot-water draw for this draw pattern. What it costs depends on the electricity rate where you live.

That is below the median of 3,531 kWh for the 426 models registered in the same heater type and draw pattern; it ranks 16 of 426, lowest energy first.

This model: 855 kWh

Solid line: this model (855 kWh). Dashed line: the class median.

Min 773 kWh Median 3,531 kWh Max 3,569 kWh

DOE CCD · 2026-09-19

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What it costs to run where you live

Enter your ZIP to see what this unit costs to run a year on your own utility’s electricity rate.


What the registry files

UEF (Uniform Energy Factor) how much hot water you get for each unit of energy the heater uses
3.8 DOE CCD · 2026-09-19 Compared only with other models registered as an electric tank at the medium draw pattern.
Draw Pattern the standard daily usage profile DOE tests the unit against
Medium DOE CCD · 2026-09-19
First Hour Rating how many gallons of hot water the unit can deliver in one hour, starting from a full tank
65 gal DOE CCD · 2026-09-19
Rated Storage Volume the tank size in gallons
46 gal DOE CCD · 2026-09-19
On the market since (ENERGY STAR) the date the manufacturer told ENERGY STAR the model went on sale
2022-06-06 ENERGY STAR · 2026-09-19
Connected / demand response (ENERGY STAR) whether the unit can take signals from your utility to shift when it heats, and by which standard (such as CTA-2045)
Yes (CTA-2045-A,CTA-2045-B) ENERGY STAR · 2026-09-19
Refrigerant and GWP (ENERGY STAR) the refrigerant a heat pump unit uses and its global warming potential, a leak's climate effect relative to carbon dioxide (CO2 = 1)
R-134a, GWP 1430 ENERGY STAR · 2026-09-19

What it costs to install

$3,062–$4,459 installed

Not a quote — a modeled range of what installers have charged for this class of unit; your price will vary with labor rates, access, and local code requirements.

Escalation indexes: equipment (BLS PPI) latest available: August 2026; labor (BLS ECI) latest available: April 2026 to June 2026.

NLR REMDB (BLS PPI/ECI escalated) · 2026-04-01

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Safety record

No CPSC recall names this model.

Checked against the CPSC recall database. CPSC does not publish a model-level match for this product category, so this list is curated by hand from the manufacturer's recall filings.

CPSC · 2026-09-24

Does it fit your space?

Enter your own numbers below — this compares them to what ENERGY STAR publishes for this model, it does not tell you what to buy.

Compressor operating range (ENERGY STAR)
the air temperatures around the unit in which its heat pump runs; outside this range the heat pump stops
Dimensions (ENERGY STAR)
the unit's filed height, width, depth or tank diameter, in inches
Input voltage and maximum current (ENERGY STAR)
the circuit voltage the unit is certified on and the most current it draws
  • Ambient temperatureEnter your numbers37°F min
  • Physical footprintEnter your numbers15" ⌀
  • Electrical supplyEnter your numbers240V, 22A max
ENERGY STAR · 2026-09-19

What these figures mean

The 855 kWh figure does not appear in the registry itself. This site computed it from the registry's UEF, the ratio of hot water delivered to energy used, and the DOE test's daily hot-water draw for the medium pattern. For the HPTS-50 2**, the UEF is 3.8, as listed in the DOE CCD retrieved 2026-09-19. The result holds only at that test draw. A home that uses more or less hot water in a day will use a different amount of electricity. That amount is not available here. The 2,676 kWh gap to the class median also describes test conditions, not real homes. The conversion steps are set out in how this site calculates annual energy and cost.

The medium draw pattern stands for a typical household's daily hot-water use, including a busy morning. This model's first hour rating, the gallons of hot water available in the first hour from a full tank, is 65 gallons. Its rated volume is 46 gallons. These figures fit a home whose busiest hour stays within 65 gallons of hot water. They do not describe a home whose peak hour draws more than that. The 855 kWh figure applies only to the medium pattern and does not carry over to other draw patterns. For other fuels, spaces or sizes, see the water heater selector by fuel, space and size. To match this unit within its own class, use the same-class replacement search by model number.

No running cost appears in this text. The cost of 855 kWh a year depends on your own utility's electricity tariff, which this page does not assume. The page computes it from your ZIP instead, and the running-cost calculator for your own ZIP lets you check it on your own rate. The 2,676 kWh difference from the 3,531 kWh median is also measured in kWh. Its value in money depends on the same tariff, so it is not stated here. The installed price shown elsewhere on this page is a modeled range with its own source and date, not a quote. The ranking of 16th lowest of 426 is based on kWh, so a different tariff does not change it.

DOE CCD · 2026-09-19

How this compares

The closest models in the same class — same fuel, type and draw pattern.


Keep going

UEF 3.8 · Grade A Price it on your ZIP