Other BTU sizes in the Knight or Armor lines require different part numbers to match their unique blower and intake diameters

Using the genuine silicone hose ensures chemical compatibility and heat resistance required for commercial and residential boilers

it is often paired with high-flow filter cores to protect the compressor from debris following a system failure

How does the override feature function during unoccupied hours

the Fasco D366 is the designated direct replacement for the Fasco 359

Lochinvar & A.O. Smith 100189387 Valve R-410A Other BTU sizes in theThe Lochinvar & A. O. Smith 100189387 Valve is a Liquid Propane (LP) gas valve assembly designed specifically for high efficiency heating applications, including the Lochinvar Copper Fin II and FTX 725 series. As a critical component in the gas valve kit, this assembly utilizes a negative pressure regulation system to ensure precise fuel to air ratios throughout the firing cycle. For technicians troubleshooting ignition failure or flame failure codes