DoesTheMath

TECNOLOVE JSLG44-26VE1(2")

0.92 UEF DOE CCD · 2026-09-19
C

Grade C: 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).

If you are checking the TECNOLOVE JSLG44-26VE1(2"), this gas tankless unit uses 184 therms of natural gas a year. That figure applies to the high draw pattern, the standard daily hot-water usage DOE tests against. At that draw it sits 2 therms above the 182 therms median of the 397 gas tankless models registered at the high draw pattern.


Energy use per year

184 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 182 therms for the 397 models registered in the same heater type and draw pattern; it ranks 207 of 397, lowest energy first.

This model: 184 therms

Solid line: this model (184 therms). Dashed line: the class median.

Min 173 therms Median 182 therms Max 209 therms

DOE CCD · 2026-09-19

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What it costs to run where you live

Enter your ZIP to see what this unit costs to run a year at your state’s average natural gas price.


What the registry files

UEF (Uniform Energy Factor) how much hot water you get for each unit of energy the heater uses
0.92 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
4.1 gal/min DOE CCD · 2026-09-19

What it costs to install

$2,216–$3,239 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) · 2026-04-01

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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 · 2026-09-24

What these figures mean

The 184 therms figure comes from this site's own calculation, not from the registry. 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 high draw pattern. This model's UEF under the federal test is 0.92, as listed in the DOE Compliance Certification Database retrieved on 2026-09-19. The annual figure holds only at that test draw. A home that draws more hot water each day would use more gas than 184 therms, and a home that draws less would use less. The registry does not record gas use in real homes, so the figure for a specific address is not available. The steps are set out in how the annual cost is calculated.

The high draw pattern stands for a larger household, or one where showers and laundry overlap. The 184 therms figure describes that kind of home. The registry lists this model's maximum flow rate in gallons per minute as 4.1. Whether that flow covers several fixtures running together depends on their flow rates, and the registry does not list those. For a smaller household, the high draw pattern is not the matching test case. A figure for this model at a lower draw pattern is not available on this page. To compare other units by fuel, space and size, use the water heater selector by fuel, space and size. To check units in this same class, see find a same-class replacement by model number.

Within its class, this model ranks 207th lowest in energy use among the 397 gas tankless units registered at the high draw pattern. At the test's daily draw, its 184 therms is 2 therms above the class median of 182 therms. This text does not state the running cost. It depends on the average residential natural gas price in your state, so the page works it out from your ZIP. The cost calculator on your own ZIP applies that rate to the 184 therms figure. The installed price appears in a separate block, with its source and date. It is a modeled range, not a quote.

DOE CCD · 2026-09-19

How this compares

The closest models in the same class — same fuel, type and draw pattern.


Keep going

UEF 0.92 · Grade C Price it on your ZIP