The Freedom® 80 variable-speed oil furnace features an electronic variable-speed motor that delivers increased comfort and efficiency, the company says. With efficiency ratings ranging from 81.7 ...

The Freedom 95 Comfort-R™ variable-speed, modulating communicating furnace has a precise level of fuel control, which makes the furnace incredibly efficient, earning the Energy Star® rating, says the ...

Our “new” 100+ yr-old brownstone has an American Standard boiler installed in 1953 (I have the original manual with the penciled-in date). The water heating component of the boiler doesn’t seem to ...