STATE ATHR-160M 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).
Checking this listing? The STATE ATHR-160M 1** uses 178 therms of natural gas a year at the high draw pattern, the standard daily hot-water usage DOE tests against. That is 4 therms below the 182 therms median for the 397 gas tankless models registered at that pattern. It ranks 45th lowest in energy use of those 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
- 4.8 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
- 2024-02-01 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 list it. It starts from the registry's UEF, the ratio of hot water delivered to energy used, rated at 0.95 for this unit. That rating is applied to the DOE test's daily hot-water draw for the high pattern. The rating comes from DOE CCD, retrieved 2026-09-19. The figure applies only at that federal test draw. A home that uses more or less hot water each day will burn a different amount of gas, and this page has no data on how much. The full method is set out in how the annual cost is calculated.
Within its class, the unit sits 4 therms below the 182 therms median and in the lowest quarter for energy use. The class is the 397 models registered as a gas tankless unit at the high draw pattern. Each one was tested against the same daily draw. The high pattern represents a larger household, or one where showers and laundry overlap. The registry also lists a maximum flow rate in gallons per minute of 4.8 for this model. The registry does not say how many fixtures that rate can supply at once in a given home. To compare units within this class, use the same-class replacement search by model number.
Because the 178 therms figure belongs to the high pattern, it does not describe a home whose daily use differs from that test draw. This page has no rating for this model at another draw pattern, so that figure is not available here. The running cost is not stated in this text either. It depends on your state's average residential gas price, so the page calculates it from your ZIP. Enter your ZIP in the water heater cost calculator to see it. The installed price range appears in a separate block, with its source and date. That range is modeled, not a quote, and this text does not repeat it.
DOE CCD · 2026-09-19