Ruud 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 Ruud RTGH-RH11DVLN *, a gas tankless unit, it uses 180 therms of natural gas a year. That figure is for the high draw pattern, the standard daily hot-water usage DOE tests against. It sits 2 therms below the 182 therms median of the 397 gas tankless models registered at that 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
- 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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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 Ruud model on file
What this brand files, by heater type.
UEF 0.94 · Grade B Price it on your ZIP
This site calculated the 180 therms figure; the registry does not publish it. It combines the model's UEF, the ratio of hot water delivered to energy used, with the DOE test's daily hot-water draw for the high draw pattern. This model's UEF is 0.94. The source is the DOE CCD, retrieved 2026-09-19. The figure applies only at that test draw. A household that uses more or less hot water each day will use a different amount of gas, and this page does not estimate that amount. The steps behind the figure are set out in how the annual cost is calculated.
The high draw pattern describes a larger household, or one where showers and laundry overlap. The Ruud RTGH-RH11DVLN * is registered at that pattern, with a maximum flow rate in gallons per minute of 6. Among the 397 models in its class, it has the 165th lowest energy use. That puts it in the second-lowest quarter of its class for energy use. If a household's daily hot-water use is lower than the high draw pattern, the 180 therms figure does not describe that household's expected use. This page does not have a figure for this model at a lower draw pattern. To compare other fuels, spaces or sizes, use the selector by fuel, space and size.
The running cost is not written here because it depends on your state's average residential gas price. The page works it out from your ZIP, based on the 180 therms figure at the high draw pattern. To see it, enter your ZIP in the cost calculator for your own ZIP. The installed price range has its own block on this page, with its source and date. It is a modeled installed-cost range, not a quote. To compare this unit with other gas tankless models at the high draw pattern, enter RTGH-RH11DVLN * in the same-class replacement search by model number.
DOE CCD · 2026-09-19