25+ Williams Natural Gas Wall Furnace US. This traditional home comfort system delivers both quality performance and low operating costs. 112m consumers helped this year.
Designed for low fuel consumption, these floor furnaces are either natural gas or liquid propane, and proudly made in the usa.
Air necessary for combustion is drawn into the chamber from outside through direct wall vent, and all combustion products are vented. Gas to natural gas without the proper manufacturer's gas conversion kit. 112m consumers helped this year. I have 40 of these williams furnaces of various vintages in an apartment complex.