The boiler insulation is achieved by using a steel jacket, but which also uses mineral fiber, which means the fuel efficiency is very high. In some of the later models there are separate tubes so that the boiler is easy to maintain, while the later models also put crown sheet arching so that the firebox can transmit much more of the heat that came from the gas ignition. Double boilers often have a dual fluebox.

Some of the more well-known boilers from this company, even though the only models available are now refurbished ones, include the M firebox type, available in many different sizes and with a fuel efficiency that can touch 75 and 100% firing rate. HP rates of other models from this range go from 40 hp to touch 1200 hp, with a fuel to steam efficiency which can touch 100%.

High Efficiency Rates The Classic III is a good example of this. The great designs of these boilers and efficiency rates are one of the reasons that they have remained popular even though they are no longer in production, this is the reason that originally they were guaranteed for repair for up to 10 years.

The best place to find a secondhand or refurbished Kewanee boiler is to look at some of the specialist Internet sites that are available. You may need to arrange long-distance transportation, but that can usually be arranged by the seller, and could be worth your while to get the boiler you want.