CAMPLUX JSLG44-26VE1(2")

This site computed the 184 therms figure; the registry did not publish it. The calculation 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. For this model the UEF is 0.92. The source is the DOE CCD, retrieved 2026-09-19. The figure therefore holds at the federal test's daily draw, not at any one home's actual usage. A household drawing less hot water than the test assumes would use less gas than 184 therms. A household drawing more would use more. This page has no data on how far real usage differs from the test in a given home. The steps behind the conversion 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. A household that uses less hot water falls under a different draw pattern, so the 184 therms figure does not describe it. The unit's maximum flow rate in gallons per minute is 4.1, as registered. This page has no data on how that rate changes with incoming water temperature. The comparison group is the 397 models registered as a gas tankless unit at the high draw pattern. Within that group, this model sits in the second-highest quarter for energy use. Its gap above the 182 therms median is 2 therms, the full difference the data shows. To compare models below that median, use the selector by fuel, space and size or find a same-class replacement by model number.

This text does not give a running cost. The cost depends on the reader's state average residential gas price, so the page computes it from the reader's ZIP. The same 184 therms leads to a different yearly cost in each state, and no single national figure applies. At any one gas price, this model's yearly gas use is 2 therms above a model at the class median of 182 therms. Its cost follows that same gap. The cost calculator on your own ZIP shows the figure for this model at the high draw pattern. The installed price range appears in its own block on this page, with its source and date. That range is a modeled installed-cost range, not a quote.