JETGLAS RG140T*N

The 188 therms figure is not published by the registry. This site computed it from the registry's UEF, the ratio of hot water delivered to energy used, which is 0.59 for this model. It applies the federal test's daily hot-water draw for the medium draw pattern, which represents a typical multi-person household. The fuel is natural gas, and the source is the DOE CCD, retrieved 2026-09-19. The figure describes test conditions only. Energy use in a home with a different daily draw is not available here. The methodology page explains the calculation step by step.

Among the 288 models registered as a gas tank at the medium draw pattern, this unit ranks 186th lowest in energy use. It sits 3 therms above the class median of 185 therms, so it uses more energy than the median model at the same draw. The data supports that comparison and nothing beyond it. The model suits a household whose hot-water use resembles the medium draw pattern. Its first hour rating, the gallons of hot water available in the first hour from a full tank, is 64 gallons, and its rated volume is 38 gallons. A household with a much larger or smaller daily draw should check other sizes with the water heater selector.

The running cost is not stated in this text. It equals the 188 therms above multiplied by the state average residential gas price, so it changes with the reader's location. The cost calculator applies that price to your own ZIP. The installed price range appears in its own block on this page, with its source and date, and is a modeled range rather than a quote. To compare this model with others in its class, use the replacement finder with the model number RG140T*N. Real-home gas use is not in the registry, so the 188 therms figure should be read only as a test-condition comparison.