DoesTheMath

FRIEDRICH PROPH40 T0 RH120-M

2.8 UEF DOE CCD · 2026-09-19
A

Grade A: where this UEF sits among the 163 models in its class, lowest (G) to highest (A). A position, not an official label. How the grade is set

An electric tank, low draw pattern (a one- or two-person household).

If you are verifying the FRIEDRICH PROPH40 T0 RH120-M, it uses 802 kWh of electricity a year at the federal test's daily hot-water draw. That figure belongs to the low draw pattern, the standard daily hot-water usage DOE tests against. It sits 1,637 kWh below the 2,439 kWh median of 163 registered electric tank models.

Energy use per year

802 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 2,439 kWh for the 163 models registered in the same heater type and draw pattern; it ranks 3 of 163, lowest energy first.

This model: 802 kWh

Solid line: this model (802 kWh). Dashed line: the class median.

Min 724 kWh Median 2,439 kWh Max 2,550 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
2.8 DOE CCD · 2026-09-19 Compared only with other models registered as an electric tank at the low draw pattern.
Draw Pattern the standard daily usage profile DOE tests the unit against
Low 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
45 gal DOE CCD · 2026-09-19
Rated Storage Volume the tank size in gallons
36 gal DOE CCD · 2026-09-19
On the market since (ENERGY STAR) the date the manufacturer told ENERGY STAR the model went on sale
2022-04-21 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)
No 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

Not published: Installed cost range

This model's UEF lies outside the range NLR REMDB's cost model was fitted on, and the range is not stretched past it.

The annual energy figure on this page does not depend on this range and is unaffected.

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

Every water heater recall on file since 2015

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 numbers210°F min
  • Physical footprintEnter your numbers16" ⌀
  • Electrical supplyEnter your numbers120V, 4.5A max
 ENERGY STAR · 2026-09-19

What these figures mean

The 802 kWh figure was computed by this site, not taken from the registry. It combines the registry's UEF, the ratio of hot water delivered to energy used, with the DOE test's daily hot-water draw for the low pattern. For this model the UEF is 2.8. The registry data comes from DOE CCD, retrieved 2026-09-19. Among the 163 electric tank models registered at the low draw pattern, the model ranks 3rd lowest in energy use. That places it in the lowest quarter of its class for energy use. The comparison does not cover other heater types or other draw patterns. The steps are explained in how the annual cost is calculated.

The low draw pattern stands for a one- or two-person household, so the 802 kWh figure describes that level of daily use. The model's first hour rating, the gallons of hot water available in the first hour from a full tank, is 45 gallons. Its rated volume is 36 gallons. The annual figure does not apply to a home that uses more hot water each day than the low pattern assumes. This page does not have the model's energy use at a higher draw. A plumber or seller checking a swap can compare these ratings with the old unit's. They can also find a same-class replacement by model number, which keeps the comparison within the same class.

This text does not state a running cost. The cost depends on your own utility electricity tariff, so the page works it out from your ZIP in the cost calculator for your own ZIP. The calculator uses the same 802 kWh of electricity a year at the low draw pattern. The model sits 1,637 kWh below its class median, but the cost difference that gap makes also depends on your rate. No installed price range is published for this model. Its ratings fall outside the range that the cost database's model was fitted on, and the range is not extended beyond that.

DOE CCD · 2026-09-19

How this compares

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

Keep going

How every figure on this page is calculated

UEF 2.8 · Grade A Price it on your ZIP

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