Rheem RTGH-RH11DVLN *
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).
If you are checking the Rheem RTGH-RH11DVLN *, a gas tankless unit, this site computes its annual energy use at 180 therms of natural gas. That figure applies to the high draw pattern, the standard daily hot-water usage DOE tests against. It sits 2 therms below the class median of 182 therms.
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
- 6 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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Find what replaces your water heater
Enter the model number off your old unit and see what is on file today, with the yearly cost difference.
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Find a water heater that fits
Three questions — fuel, hot water need, install space — narrow every model on file to the ones that fit.
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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
The 180 therms figure is not a registry field. This site computes it from the registry's UEF, the ratio of hot water delivered to energy used. It combines that ratio with the DOE test's daily hot-water draw for the high pattern. For this model the UEF is 0.94, from the DOE CCD retrieved 2026-09-19. The high pattern stands for a larger household, or one where showers and laundry overlap. Your household may draw more or less hot water than the test assumes. If it does, your yearly gas use will differ from 180 therms, and this page has no figure for your actual use. The steps behind the figure are set out in how the annual cost is calculated.
The class for this model is the 397 models registered as a gas tankless unit at the high draw pattern. Among them, this model ranks 165th lowest energy use. That places it in the second-lowest quarter of its class for energy use, 2 therms below the median of 182 therms. The registry lists its maximum flow rate in gallons per minute as 6. That rating is not part of the 180 therms calculation, which uses only the UEF and the test's daily draw. The class comparison applies most directly to a home whose use resembles the high pattern. For a smaller household, a class at another draw pattern would be the relevant comparison, and this page does not show it. To check another model against this class, use the same-class replacement search by model number.
This page states no running cost in the text. The cost of 180 therms of natural gas depends on your state's average residential gas price. The page computes that cost from your ZIP, and it is not available without one. You can enter your ZIP in the cost calculator on your own ZIP to see the yearly figure for this model. The calculated cost carries the same condition as the energy figure. It applies at the federal test's daily draw for the high pattern, not at your measured use. The installed price range appears in its own block, with its source and date. It is a modeled range, not a quote, and it is separate from the running cost.
DOE CCD · 2026-09-19