BRADFORD WHITE RG2DV40S*N-***

The registry lists a UEF, the ratio of hot water delivered to energy used, of 0.6 for this model. The annual figure is computed by this site, not taken from the registry. It uses that UEF and the DOE test's daily hot-water draw for the medium draw pattern, which gives 185 therms of natural gas. The source is DOE CCD, retrieved 2026-09-19. Among the 288 gas tank models registered at this pattern, the model ranks 89th lowest in energy use, which places it in the second-lowest quarter of its class. Its difference from the class median of 185 therms is 0 therms, so it sits at the median rather than above or below it.

The energy figure applies to the medium draw pattern, which describes a typical three- or four-person household on a busy morning. This tank has a rated volume of 38 gallons and a first hour rating, the gallons of hot water available in the first hour from a full tank, of 62 gallons. The comparison holds for households whose use resembles that pattern. A household with much heavier or lighter use is not covered by 185 therms, and this page has no energy figure for other draw patterns. That value is not available here. Readers who want to compare by fuel, space and size can use the water heater selector.

This page does not state a running cost in the text. The cost depends on the state average residential gas price, which differs by reader. It is the 185 therms at the medium draw pattern multiplied by that price. The cost calculator applies the price for your own ZIP, and how the annual cost is calculated sets out the method. The modeled installed-cost range appears in its own block with its source and date. It is a modeled range, not a quote. To compare against the class median of 185 therms, you can find a same-class replacement by model number.