What are the specifications for the B1086773S fan blade

you can significantly improve system reliability

Durable Construction: Built with high-grade components to withstand frequent cycling and ambient temperature fluctuations common in attic or crawlspace installs

always verify the Lochinvar gasket is seated perfectly against the heat shield to avoid the nuisance leaks common in high-cycle water tube systems

Constructed with a high-grade stainless steel filter and a precise needle-and-seat configuration

Lennox 26W86 Pressure Switch 319825-402 What are the specifications forThe Lennox 26W86 is a mission critical 2 stage high altitude pressure switch engineered for precision in demanding environments. Designed as a direct Lennox 101021 10 OEM replacement, this dual stage component is calibrated for systems operating above 4,500 feet where air density impacts combustion. It features dual set points of 0. 90" WC for low stage and 1. 20" WC for high stage operation, ensuring the inducer motor maintains proper static pressure