STATE T-H3M-DV-N 1**
0.9 UEF DOE CCD · 2026-09-19Grade D: where this UEF sits among the 80 models in its class, lowest (G) to highest (A). A position, not an official label. How the grade is set
A gas tankless unit, medium draw pattern (a typical three- or four-person household, about 55 gallons on a busy morning).
If you are checking the figure for the STATE T-H3M-DV-N 1**, this gas tankless unit uses 123 therms of natural gas a year at the medium draw pattern. That is 12 therms below the class median of 135 therms, across 80 registered models. The figure is computed by this site from registry data.
Energy use per year
123 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 135 therms for the 80 models registered in the same heater type and draw pattern; it ranks 10 of 80, lowest energy first.
Solid line: this model (123 therms). Dashed line: the class median.
Min 114 therms Median 135 therms Max 137 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
- 0.9 DOE CCD · 2026-09-19 Compared only with other models registered as a gas tankless unit at the medium draw pattern.
- Draw Pattern the standard daily usage profile DOE tests the unit against
- Medium DOE CCD · 2026-09-19
- Maximum Gallons Per Minute how many gallons a minute it can heat while running continuously
- 3.3 gal/min DOE CCD · 2026-09-19
What it costs to install
$2,122–$3,129 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 STATE model on file
What this brand files, by heater type.
UEF 0.9 · Grade D Price it on your ZIP
The 123 therms figure is computed by this site, not listed in the registry. It combines the registry's UEF, the ratio of hot water delivered to energy used, of 0.9 with the daily hot-water draw that the DOE test assigns to its draw pattern, the standard daily hot-water usage DOE tests against. That pattern is medium here, which stands for a typical household on a busy morning. The energy source is the DOE CCD, retrieved 2026-09-19. The figure counts natural gas only and holds only at the test's draw, so a household that uses more or less hot water will use a different amount. The registry also lists a maximum flow rate in gallons per minute of 3.3 for the STATE T-H3M-DV-N 1**. That value is not an input to the annual figure.
Among the 80 models registered as a gas tankless unit at the medium draw pattern, this one ranks 10th lowest for energy use. Its 123 therms sits 12 therms below the class median of 135 therms, which places it in the lowest quarter of its class. That comparison holds only for natural gas at this draw pattern. The page does not show how the model ranks at another pattern. The position is useful to a plumber or seller checking a listed model against its class, or to a homeowner who wants a same-class comparison from a replacement search by model number. The rank measures energy use only. It does not show flow capacity, price, or how the unit performs in a particular home.
The running cost is not written here because it depends on the state average residential gas price, and that differs for each reader. To apply 123 therms to your own rate, use the cost calculator on your ZIP. The steps behind it are in how the annual cost is calculated. The result is a test-condition estimate, not a bill. This model's figure suits a household whose hot-water use resembles the medium draw pattern. It suits a household with a much heavier or lighter draw less well, because 123 therms then serves only as a reference. A reader still choosing by fuel, space and size can start from the water heater selector.
DOE CCD · 2026-09-19