STATE ATM-199M-N 1**
0.95 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 STATE ATM-199M-N 1**, a gas tankless unit, its annual energy use is 178 therms of natural gas. That figure applies at the high draw pattern, the standard daily hot-water usage DOE tests against. It sits 4 therms below its class median of 182 therms, ranking 45th lowest of 397.
Energy use per year
178 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 45 of 397, lowest energy first.
Solid line: this model (178 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
- 0.95 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
- On the market since (ENERGY STAR) the date the manufacturer told ENERGY STAR the model went on sale
- 2025-05-15 ENERGY STAR · 2026-09-19
- Connected / demand response (ENERGY STAR) whether the unit can take signals from your utility to shift when it heats, and by which standard (such as CTA-2045)
- No ENERGY STAR · 2026-09-19
What it costs to install
$2,358–$3,405 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 · 2026-09-24Does it fit your space?
Enter your own numbers below — this compares them to what ENERGY STAR publishes for this model, it does not tell you what to buy.
- Dimensions (ENERGY STAR)
- the unit's filed height, width, depth or tank diameter, in inches
- Input voltage and maximum current (ENERGY STAR)
- the circuit voltage the unit is certified on and the most current it draws
- Vent type and size (ENERGY STAR)
- how a gas unit is vented, the vent's diameter and the height of its vent connector
What 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 0.95 · Grade B Price it on your ZIP
The 178 therms figure is calculated by this site; the registry does not publish it. It starts from the registry's UEF, the ratio of hot water delivered to energy used, which is 0.95 for this model. That value is combined with the DOE test's daily hot-water draw for the high draw pattern. The registry value comes from the DOE CCD, retrieved 2026-09-19. Because the test fixes the daily draw, the figure describes a standard test day, not a particular home. Use in a home that draws more or less hot water than the test day is not available here. The class comparison above uses the same test day for all 397 models, so the 4 therms gap compares like with like. The page on how the annual cost is calculated sets out each step of the method.
The high draw pattern stands for a larger household, or one where showers and laundry overlap. For this model the registry lists a maximum flow rate in gallons per minute of 6, the highest flow rating it records. Within the high draw class, the STATE ATM-199M-N 1** ranks 45th of 397 for energy use, which puts it in the lowest quarter. That ranking applies only at the high draw pattern. A smaller household with lighter hot-water use is described by a different draw pattern, and this page does not show how the unit compares there. Readers matching a unit to their home can use the selector by fuel, space and size. Readers replacing an existing unit can find a same-class replacement by model number.
The running cost is not stated in this text. It depends on your state's average residential gas price applied to the 178 therms figure, so the page works it out from your ZIP rather than showing a single national amount. The 4 therms difference from the class median works the same way: what it is worth depends on your own gas rate. Local tariffs, fixed monthly charges and your household's hot-water habits are not in the data behind this page, so they are not reflected. The installed price appears in its own block with its source and date. It is a modeled installed-cost range, not a quote. The cost calculator on your own ZIP shows the running cost at your state's rate.
DOE CCD · 2026-09-19