FRIEDRICH PROG48-48U RH EC1
0.64 UEF DOE CCD · 2026-09-19Grade G: 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 this unit, the FRIEDRICH PROG48-48U RH EC1 gas tank uses 264 therms of natural gas a year at the high draw pattern, the standard daily hot-water usage DOE tests against. That is 4 therms above the class median of 260 therms across 414 registered models.
Energy use per year
264 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 above the median of 260 therms for the 414 models registered in the same heater type and draw pattern; it ranks 236 of 414, lowest energy first.
Solid line: this model (264 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
- 0.64 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
- 88 gal DOE CCD · 2026-09-19
- Rated Storage Volume the tank size in gallons
- 46 gal DOE CCD · 2026-09-19
What it costs to install
$1,761–$3,058 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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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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Answered from what models in this size actually file.
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Every model on file with the Department of Energy, by heater type.
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Gas-fired storage tanks, every size and draw pattern on file.
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What this brand files, by heater type.
UEF 0.64 · Grade G Price it on your ZIP
The 264 therms figure is computed by this site, not published by the registry. The registry's UEF, the ratio of hot water delivered to energy used, is 0.64. This site combines it with the DOE test's daily hot-water draw for the high draw pattern, so the figure applies only at that draw. The energy data was retrieved from DOE CCD on 2026-09-19. Among the 414 models registered as a gas tank at this draw pattern, the unit uses 4 therms more than the class median of 260 therms. It ranks 236th lowest in energy use, in the second-highest quarter of its class. Energy use at any other draw pattern is not available here. The calculation is set out in how the annual cost is calculated.
The high draw pattern describes a larger household, or one where showers and laundry overlap. The registry lists a first hour rating, the gallons of hot water available in the first hour from a full tank, of 88 gallons. It also lists a rated volume of 46 gallons. These values and the 264 therms figure describe this unit only for that kind of use. A household with a lower draw pattern should not read 264 therms as its own consumption, because the test draw differs. A reader who wants energy use at or below the class median of 260 therms will find this model above it by 4 therms. To compare units by fuel, space and size, use the water heater selector by fuel, space and size, or look up a same-class replacement by model number.
The running cost is not stated in the text, because it depends on your state's average residential gas price. The 264 therms figure is a quantity of natural gas, so the yearly cost is that quantity multiplied by your rate. The 4 therms above the class median of 260 therms depends on the price in the same way, so the cost gap to a median unit changes with where you live. The cost calculator on your own ZIP applies your state's price to the 264 therms figure. The modeled installed-cost range appears in its own block on the page with its source and date. It is a modeled range, not a quote, and this text does not restate it.
DOE CCD · 2026-09-19