JOHN WOOD GPVT-50 2**
0.72 UEF DOE CCD · 2026-09-19Grade E: where this UEF sits among the 414 models in its class, lowest (G) to highest (A). A position, not an official label. How the grade is set
A gas tank, high draw pattern (a larger household, or one where showers and laundry overlap).
If you are checking the JOHN WOOD GPVT-50 2**, a gas tank water heater, it uses 235 therms of natural gas a year. That figure applies at the high draw pattern, the standard daily hot-water usage DOE tests against. It sits 25 therms below the 260 therms median of the 414 gas tank models at that draw pattern.
Energy use per year
235 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 260 therms for the 414 models registered in the same heater type and draw pattern; it ranks 50 of 414, lowest energy first.
Solid line: this model (235 therms). Dashed line: the class median.
Min 188 therms Median 260 therms Max 277 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
- 0.72 DOE CCD · 2026-09-19 Compared only with other models registered as a gas tank at the high draw pattern.
- Draw Pattern the standard daily usage profile DOE tests the unit against
- High 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
- 97 gal DOE CCD · 2026-09-19
- Rated Storage Volume the tank size in gallons
- 48 gal DOE CCD · 2026-09-19
What it costs to install
$2,258–$4,333 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
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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 50-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 JOHN WOOD model on file
What this brand files, by heater type.
UEF 0.72 · Grade E Price it on your ZIP
The 235 therms figure is calculated by this site. It does not come from the registry. It combines the registry'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 0.72, from DOE CCD data retrieved on 2026-09-19. Among the 414 gas tank models registered at the high draw pattern, it ranks 50th lowest in energy use. That puts it in the lowest quarter of its class. The 25 therms gap to the class median applies only at the federal test's draw. This data cannot show gas use in a home that draws more or less hot water than the test. Our page on how the annual energy and cost figures are calculated sets out each step.
The high draw pattern stands for a larger household, or one where showers and laundry overlap. This model's first hour rating, the gallons of hot water available in the first hour from a full tank, is 97 gallons. Its rated volume is 48 gallons. A plumber or seller checking a listing can compare these values with the registry entry for GPVT-50 2**. The 235 therms figure describes a home whose daily use is close to the high test draw. For a smaller household with lighter daily use, the figure does not measure its gas use. This data gives no energy figure for this model at other draw patterns, so that value is not available here. To compare units by fuel, space and size, use the water heater selector.
Running cost is not stated in this text. It depends on your state's average residential gas price, applied to the 235 therms this model uses at the high draw pattern. The page calculates that cost from your ZIP. The running cost calculator for your own ZIP uses the same method for other models. This model sits 25 therms below the 260 therms class median. So at the same gas price and the test draw, its running cost is lower than the median model's. The installed price on this page is a modeled range with its own source and date, not a quote. To find a same-class alternative, you can look up a replacement by model number.
DOE CCD · 2026-09-19