JETGLAS RG230S*N
0.54 UEF DOE CCD · 2026-09-19Grade G: where this UEF sits among the 9 models in its class, lowest (G) to highest (A). A position, not an official label. How the grade is set
A gas tank, low draw pattern (a one- or two-person household).
Checking JETGLAS RG230S*N? This gas tank uses 142 therms of natural gas a year at the low draw pattern, the standard daily hot-water usage DOE tests against. That matches its class median of 142 therms, a difference of 0 therms, and ranks 4th lowest of 9.
Energy use per year
142 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 equal to the median of 142 therms for the 9 models registered in the same heater type and draw pattern; it ranks 4 of 9, lowest energy first.
Solid line: this model (142 therms). Dashed line: the class median.
Min 134 therms Median 142 therms Max 142 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
- 0.54 DOE CCD · 2026-09-19 Compared only with other models registered as a gas tank at the low draw pattern.
- Draw Pattern the standard daily usage profile DOE tests the unit against
- Low DOE CCD · 2026-09-19
- First Hour Rating how many gallons of hot water the unit can deliver in one hour, starting from a full tank
- 49 gal DOE CCD · 2026-09-19
- Rated Storage Volume the tank size in gallons
- 29 gal DOE CCD · 2026-09-19
What it costs to install
Not published: Installed cost range
This model's UEF lies outside the range NLR REMDB's cost model was fitted on, and the range is not stretched past it.
The annual energy figure on this page does not depend on this range and is unaffected.
Safety 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
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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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Is a 30-gallon water heater enough?
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 tank water heaters
Gas-fired storage tanks, every size and draw pattern on file.
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Every JETGLAS model on file
What this brand files, by heater type.
UEF 0.54 · Grade G Price it on your ZIP
The figure of 142 therms for the JETGLAS RG230S*N is computed by this site, not by the registry. It combines the registry's UEF, the ratio of hot water delivered to energy used, of 0.54 with the daily hot-water draw DOE uses for the low draw pattern. The source is DOE CCD, retrieved 2026-09-19. The class is the 9 models registered as a gas tank at the low draw pattern, and its median is 142 therms. This model differs from that median by 0 therms. Its rank is 4th lowest of 9, which places it in the quarter of its class just above the lowest-energy quarter. The calculation method is documented separately.
This unit's rated volume is 29 gallons, and its first hour rating, the gallons of hot water available in the first hour from a full tank, is 49 gallons. Those ratings and the low draw pattern point to a small household, which is the use the 142 therms figure describes. The figure does not carry over to a household that draws more hot water than the DOE test day. Annual energy for a heavier draw pattern is not available for this model. Nor does the figure record how much hot water any household actually used in a given year. Readers comparing options by fuel, space and size can use the water heater selector.
Running cost is not stated here because it depends on the state average residential gas price, which differs by reader. Multiplying 142 therms by the price per therm in the reader's state gives the yearly fuel cost at the low draw pattern. The cost calculator does this from the reader's own ZIP. Because JETGLAS RG230S*N sits 0 therms from the class median of 142 therms, a model using exactly the median energy would cost the same on the same rate. An installed price range is not published for this model. Its ratings lie outside the range the cost database's model was fitted on, and the range is not stretched past it.
DOE CCD · 2026-09-19