JETGLAS RG1PV40S*N19

The registry lists a 0.68 for this model. UEF, the ratio of hot water delivered to energy used, is the input to the energy figure on this page. This site computed 249 therms of natural gas a year from that UEF and the DOE test's daily hot-water draw for the high draw pattern; the registry does not publish that annual figure itself. The source is DOE CCD, retrieved 2026-09-19. Among the 414 models registered as a gas tank at the high draw pattern, this one ranks 164th lowest for energy use. That places it in the second-lowest quarter of its class, 11 therms below the class median of 260 therms.

The high draw pattern describes a larger household, or one where showers and laundry overlap. This model has a first hour rating, the gallons of hot water available in the first hour from a full tank, of 75 gallons, and a rated volume of 38 gallons. These values and the 249 therms figure all apply to the high draw pattern, so they fit a reader whose household matches that description. For a household that uses hot water differently from the test, the 249 therms figure is not a prediction, and the data here gives no separate figure for other patterns. The water heater selector filters by fuel, space and size.

The running cost is not stated in the text because it depends on the state average residential gas price, which differs between readers. To turn 249 therms into a yearly cost, use the cost calculator with your own ZIP. The methodology page explains how the annual cost is calculated from the energy figure. A modeled installed-cost range appears in its own block on the page with its source and date; it is not a quote and is not repeated here. To compare a same-class unit, find a replacement by model number using RG1PV40S*N19. The gap of 11 therms to the class median of 260 therms applies only to this class.