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Duotone terrace — saffron brief on the left, garden-folded ledger on the right.
these mid-efficiency atmospheric boilers rely on the 103661-02 to manage the induced draft fan
the Lennox 25G43 is technically identical to the 25G4301 and can be used as a direct 1:1 replacement in all Lennox furnace and AC systems
This unit includes a thermocouple adapter kit and retaining clips to simplify retrofitting into slip-in pilot burners
RE2103800 is the cross for E2103800
Safety Lockout Logic: Features the 780-845 module with a 1-hour lockout reset to prevent hazardous gas accumulation
Grundfos 00519850 Valve Set 320788-702 these mid-efficiency atmospheric boilers relyThe Grundfos 00519850 Valve Set is a professional grade 1 2 inch bronze isolation valve kit designed for seamless integration with Grundfos UP and UPS series circulator pumps. Engineered for high temperature hydronic heating and potable water systems, these union isolation valves allow for rapid pump servicing or replacement without the need to drain the entire loop. The sweat connection design provides a secure, leak free interface, while the heavy