Rheem RTGH-RH10DVLN *
0.94 UEF DOE CCD · 2026-09-19Grade B: where this UEF sits among the 397 models in its class, lowest (G) to highest (A). A position, not an official label. How the grade is set
A gas tankless unit, high draw pattern (a larger household, or one where showers and laundry overlap).
Checking this model's registry figures? The Rheem RTGH-RH10DVLN * uses 180 therms of natural gas a year at the high draw pattern, the standard daily hot-water usage DOE tests against. That is 2 therms below the 182 therms median of the 397 gas tankless models registered at the same draw pattern.
Energy use per year
180 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 182 therms for the 397 models registered in the same heater type and draw pattern; it ranks 165 of 397, lowest energy first.
Solid line: this model (180 therms). Dashed line: the class median.
Min 173 therms Median 182 therms Max 209 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
- 0.94 DOE CCD · 2026-09-19 Compared only with other models registered as a gas tankless unit at the high draw pattern.
- Draw Pattern the standard daily usage profile DOE tests the unit against
- High DOE CCD · 2026-09-19
- Maximum Gallons Per Minute how many gallons a minute it can heat while running continuously
- 5.2 gal/min DOE CCD · 2026-09-19
What it costs to install
$2,311–$3,350 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) · 2026-04-01Safety 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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How to size a tankless water heater by GPM
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 tankless water heaters
Gas-fired instantaneous units, sized by flow rate rather than tank gallons.
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Every Rheem model on file
What this brand files, by heater type.
UEF 0.94 · Grade B Price it on your ZIP
This site computes the 180 therms figure. The registry does not publish it. The calculation starts from the model's UEF, the ratio of hot water delivered to energy used. For this model, the UEF is 0.94. That value is applied to the daily hot-water draw the DOE test sets for the high draw pattern. The UEF comes from the DOE Compliance Certification Database (CCD), retrieved 2026-09-19. This unit ranks 165th lowest in energy use among the 397 gas tankless models registered at the high draw pattern. That rank puts it in the second-lowest quarter of its class. At the test's draw, it uses 2 therms a year less than the class median of 182 therms. Each step is set out on the page explaining how the annual energy and cost figures are calculated.
The high draw pattern stands for a larger household, or one where showers and laundry overlap. The 180 therms figure applies only to the test's daily draw for that pattern. A household that draws less or more hot water each day would use a different amount. This page has no figure for those households, so that amount is not available here. The registry lists a maximum flow rate in gallons per minute of 5.2 for this model. This is the highest flow it is rated to deliver. The registry data used here does not say how that flow changes with incoming water temperature. That detail is not available on this page. To compare other models registered in the same class, use the same-class replacement search by model number.
This text does not state a running cost. The cost depends on your state's average residential natural gas price. That price is applied to the 180 therms this model uses a year at the high draw pattern. The page calculates the cost from your ZIP, and the running-cost calculator for your own ZIP shows the result. This unit sits 2 therms below the 182 therms class median at the test's draw. So the cost gap to a median model in this class equals the price of 2 therms of gas at your rate. The installed price range appears in its own block on this page, with its source and date. It is a modeled range for installed cost, not a quote.
DOE CCD · 2026-09-19