IBC Technologies SFT 199

The figure of 190 therms is not a value the registry publishes. This site computed it from the registry's UEF, the ratio of hot water delivered to energy used, which is 0.89 for the SFT 199, and the DOE test's daily hot-water draw for the high draw pattern. The fuel is natural gas, and the source is the DOE CCD, retrieved 2026-09-19. The registry also lists a maximum flow rate in gallons per minute of 5.4. That flow rating is a separate limit and does not change the annual therms shown here. A home whose real hot-water use differs from the federal test's daily draw will use a different amount of gas.

Against its class, the unit uses 8 therms more than the median of 182 therms. It sits 223rd lowest in energy use among 397 models, which places it in the second-highest quarter of its class for energy use. The comparison covers only gas tankless models registered at the high draw pattern. It says nothing about other draw patterns or other fuels. The high draw pattern describes a larger household, or one where showers and laundry overlap, so the figure suits homes that use hot water that way. For a home with lighter use, this page has no value, and none is estimated here.

The running cost is not stated in the text because it depends on your state's average residential gas price. Use the cost calculator with your ZIP to apply that rate to 190 therms. The method behind the annual cost is documented separately. If you need a unit in the same class to compare against the SFT 199, you can find a same-class replacement by model number. The installed price range appears in its own block on this page, with its source and date, and is not restated in this text.