Peerless produces gas-fueled boilers designed specifically for commercial use. Its various models feature outputs that range from 93 to 7,560 mega-British thermal units per hour. The gas-powered commercial boilers made by Peerless are constructed of either stainless steel or cast iron, depending on the model purchased.
Of the 10 commercial boiler models offered by Peerless, six are powered only by gas while four are fueled by oil or by a combination of gas and oil. Three of the models also feature a natural draft venting system while three require either a direct vent or a sealed combustion system and four feature a forced draft system.