In other words, a condensing tankless water heater powered by propane can utilize 200 degrees Fahrenheit of heat that would otherwise have been wasted. The downside is that condensing models are ...
Our average of how long a generator ran, over various loads, on a full tank of gasoline or diesel fuel, a 20-pound tank for propane-based portables, or a 250-gallon propane tank for stationary models.