JETGLAS RG150T*N

The figure of 269 therms is not a registry entry. This site computed it from the registry's UEF, the ratio of hot water delivered to energy used. For this model the UEF is 0.63. The calculation also uses the daily hot-water draw that the DOE test sets for the high draw pattern. The source is DOE CCD, retrieved 2026-09-19. The figure describes the test conditions only; the registry gives no measured value for any particular home. Compared with its class, the model sits 9 therms above the 260 therms median. It is 320th lowest in energy use among the 414 models, which is the highest quarter of the class. The method behind the annual figures is documented separately.

The registry lists this model at the high draw pattern, which describes a larger household, or one where showers and laundry overlap. Its first hour rating, the gallons of hot water available in the first hour from a full tank, is 75 gallons, with a rated volume of 47 gallons. Those two figures describe capacity, not efficiency. Where lower gas use is the priority, the 269 therms figure and the 9 therms gap above the class median are the numbers to compare, because the model is in the highest quarter of its class for energy use. The selector by fuel, space and size filters other units on those terms, and a same-class replacement by model number can be looked up separately.

Running cost is not stated in this text because it depends on the state average residential gas price, so the page computes it from the reader's ZIP. Multiplying 269 therms by your own price per therm gives the annual gas cost at the test draw. The cost calculator on your own ZIP does this for you. The same rate applied to the class median of 260 therms shows what the 9 therms difference amounts to in cost. All of this stays tied to the high draw pattern; a home with a different real draw will differ, and the registry provides no figure for it. The modeled installed-cost range appears in its own block on this page, with its source and date.