Rheem PROG30-30N RH63 MH DV
0.57 UEF DOE CCD · 2026-09-19Grade A: where this UEF sits among the 9 models in its class, lowest (G) to highest (A). A position, not an official label. How the grade is set
A gas tank, low draw pattern (a one- or two-person household).
If you are verifying the Rheem PROG30-30N RH63 MH DV, it uses 134 therms of natural gas a year at the low draw pattern, the standard daily hot-water usage DOE tests against, for a one- or two-person household. That is 8 therms below the class median of 142 therms, the 1st lowest of 9 models.
Energy use per year
134 therms 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 natural gas rate where you live.
That is below the median of 142 therms for the 9 models registered in the same heater type and draw pattern; it ranks 1 of 9, lowest energy first.
Solid line: this model (134 therms). Dashed line: the class median.
Min 134 therms Median 142 therms Max 142 therms
What it costs to run where you live
What the registry files
- UEF (Uniform Energy Factor) how much hot water you get for each unit of energy the heater uses
- 0.57 DOE CCD · 2026-09-19 Compared only with other models registered as a gas 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
- 46 gal DOE CCD · 2026-09-19
- Rated Storage Volume the tank size in gallons
- 29 gal DOE CCD · 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 · 2026-09-24What these figures mean
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
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What a water heater costs to run
Prices a unit's efficiency against your own utility's filed tariff for your ZIP code.
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Is a 30-gallon water heater enough?
Answered from what models in this size actually file.
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Water heaters
Every model on file with the Department of Energy, by heater type.
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All gas tank water heaters
Gas-fired storage tanks, every size and draw pattern on file.
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Every Rheem model on file
What this brand files, by heater type.
UEF 0.57 · Grade A Price it on your ZIP
The figure of 134 therms is computed by this site, not read from the registry. It combines the registry's UEF, the ratio of hot water delivered to energy used, of 0.57 with the DOE test's daily hot-water draw for the low draw pattern. The registry lists this model as a gas tank with a rated volume of 29 gallons. The figure applies only to natural gas at that draw, and a household's real hot-water use is not measured here. The source data is DOE CCD, retrieved 2026-09-19. The calculation method sets out how the annual figure and the annual cost are derived.
Against the 9 models registered as a gas tank at the low draw pattern, this model sits 8 therms below the class median of 142 therms. Its 1st lowest energy use of 9 places it in the lowest quarter of its class. The comparison holds only within that group and at that draw. The unit suits a one- or two-person household, the case the low draw pattern represents. Its first hour rating, the gallons of hot water available in the first hour from a full tank, is 46. The figure does not describe a larger household, because this page gives no result for a higher draw pattern. The water heater selector filters by fuel, space and size.
Running cost is not stated in the text. It depends on the state average residential gas price, which differs by reader. The cost calculator applies your ZIP to the 134 therms at the low draw pattern and returns a running cost on your own rate. The same 134 therms at a different gas price gives a different cost, so a cost quoted for another location does not transfer. An installed price range is not published for this model: its ratings lie outside the range the cost database's model was fitted on, and the range is not stretched past it. To look for a unit in the same class, search by model number.
DOE CCD · 2026-09-19