VAUGHN THERMAL ME50HPT
3.46 UEF DOE CCD · 2026-09-19Grade B: where this UEF sits among the 426 models in its class, lowest (G) to highest (A). A position, not an official label. How the grade is set
An electric tank, medium draw pattern (a typical three- or four-person household, about 55 gallons on a busy morning).
If you are checking the VAUGHN THERMAL ME50HPT, this electric tank uses 939 kWh of electricity a year at the medium draw pattern, the standard daily hot-water usage DOE tests against. That is 2,592 kWh below the class median of 3,531 kWh, and it ranks 90th lowest in energy use of 426 electric tank models.
Energy use per year
939 kWh 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 electricity rate where you live.
That is below the median of 3,531 kWh for the 426 models registered in the same heater type and draw pattern; it ranks 90 of 426, lowest energy first.
Solid line: this model (939 kWh). Dashed line: the class median.
Min 773 kWh Median 3,531 kWh Max 3,569 kWh
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
- 3.46 DOE CCD · 2026-09-19 Compared only with other models registered as an electric tank at the medium draw pattern.
- Draw Pattern the standard daily usage profile DOE tests the unit against
- Medium 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
- 58 gal DOE CCD · 2026-09-19
- Rated Storage Volume the tank size in gallons
- 47 gal DOE CCD · 2026-09-19
- On the market since (ENERGY STAR) the date the manufacturer told ENERGY STAR the model went on sale
- 2023-09-01 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
- Refrigerant and GWP (ENERGY STAR) the refrigerant a heat pump unit uses and its global warming potential, a leak's climate effect relative to carbon dioxide (CO2 = 1)
- R-134a, GWP 1430 ENERGY STAR · 2026-09-19
- Sound level (ENERGY STAR) how loud the unit is while it runs, in decibels as filed
- 54 dB ENERGY STAR · 2026-09-19
What it costs to install
$3,056–$4,129 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.
- Compressor operating range (ENERGY STAR)
- the air temperatures around the unit in which its heat pump runs; outside this range the heat pump stops
- 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
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
-
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.
-
Find a water heater that fits
Three questions — fuel, hot water need, install space — narrow every model on file to the ones that fit.
-
What a water heater costs to run
Prices a unit's efficiency against your own utility's filed tariff for your ZIP code.
-
What size heat pump water heater do I need?
Answered from what models in this size actually file.
-
Water heaters
Every model on file with the Department of Energy, by heater type.
-
All heat pump water heaters
Electric tanks that file a UEF of 2.0 or more — the registry has no separate heat pump type, so this site draws the line there.
-
Every VAUGHN THERMAL model on file
What this brand files, by heater type.
UEF 3.46 · Grade B Price it on your ZIP
The 939 kWh figure is computed by this site; the registry does not publish it. It combines the registry's UEF, the ratio of hot water delivered to energy used, with the daily hot-water draw the DOE test sets for the medium pattern. This model's UEF is 3.46, from the DOE Compliance Certification Database, retrieved 2026-09-19. The annual figure holds only at that test draw. A household using more hot water than the medium pattern assumes will use more electricity. A household using less will use less. This page has no data on any single household's actual use, so the figure is a test-based estimate, not a metered reading. The formula is set out in how this site calculates annual energy and cost.
Sizing is a separate check from efficiency. The registry lists a rated volume of 47 gallons. It also lists a first hour rating, the gallons of hot water available in the first hour from a full tank, of 58 gallons. The medium draw pattern represents a typical mid-sized household with a busy morning. A household whose peak-hour demand stays within 58 gallons matches the conditions behind the annual figure. A household that regularly needs more than that in one hour falls outside the tested pattern. For that household, neither the first hour rating nor the annual figure describes its use. Other sizes and fuels can be compared with the water heater selector by fuel, space and size. A same-class replacement search by model number lists comparable units.
The class gap stated above comes from applying the same test draw to all 426 electric tank models at the medium pattern. It therefore ranks tested energy use, not the bill in a given home. The 90th lowest position shows where the 3.46 UEF places this model among those registered units. The running cost is not stated in this text, because it depends on your own utility's electricity rate. The page computes it from your ZIP code in the running cost calculator for your ZIP. The installed price range appears in its own block, with its source and date. It is a modeled installed-cost range, not a quote.
DOE CCD · 2026-09-19