Designed for high-duty cycles in residential and light commercial furnaces

Common Questions What causes a Lennox 24L51 to fail

Optimized Airflow Sequencing: Designed to bring the blower fan on in coordination with the first heating stage to prevent limit switch tripping

Durable Construction: Fabricated from heavy-gauge galvanized steel to resist corrosion and withstand high-heat exhaust environments

Can the DM24-70 handle 4-20mA signals without an external resistor

Lochinvar & A.O. Smith 100233667 Gasket 328140-751 Designed for high-duty cycles inThe Lochinvar & A. O. Smith 100233667 Gasket is a critical OEM component specifically engineered for sight glass assemblies in high efficiency commercial boilers and water heaters. As a veteran technician knows, maintaining a gastight seal at the observation port is non negotiable for safe combustion monitoring. This replacement gasket is the direct successor to the obsolete GKT20057, designed to withstand the high thermal stresses found in Lochinvar