The White-Rodgers two-stage HSI integrated circulator furnace control kits are available in both three speed and variable speed. The variable-speed Model 21V51U-843 replaces all White-Rodgers ...

The inducer motor is a fairly recent piece of equipment on gas furnaces, so it isn’t surprising many homeowners don’t know why it’s there or what it does. Because it’s integrated into the furnace’s ...

Pneumatic furnace damper drives may be more common, but electro-hydraulic actuators provide several advantages to the more traditional control scheme. One fossil-fired plant in Taiwan achieved more ...

Treating carbon steel components to improve their surface properties such as hardness via the carburising process is a well established technology. And yet even today, aft er many years of development ...