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Bubble-Tight Shutoff: Precision-machined ball cone ensures a secure seal even in low-pressure applications
eliminating the need for complex mounting modifications or terminal re-pinning
Common Questions Is the E5-232H-2PK compatible with my Dravo burner
Multi-Signal Input: Accepts analog (VDC/mA)
Can this heater be used on 208V systems
Lennox 25W78 Insert 320074-702 Bubble-Tight Shutoff: Precision-machined ball coneThe Lennox 25W78 NOx Insert is a critical combustion component engineered specifically for Lennox gas furnaces to reduce nitrogen oxide emissions. Designed for high efficiency heating systems, this OEM Lennox replacement part ensures that the burner assembly maintains optimal fuel to air ratios for a cleaner, more environmentally compliant burn. Constructed from heavy duty steel to withstand high temperature furnace environments, the 25W78 insert
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