Description
Upgrade your furnace or boiler ignition system with the reliable Honeywell/Resideo S87D1012/U, formerly Honeywell S87D series. Ideal for gas-fired appliances—furnaces, boilers, and space heaters—the S87D1012/U utilizes a dual‑rod direct spark mechanism to deliver fast, clean ignition. Featuring a built-in 11‑second lockout safety timer to prevent runaway sparking, it automatically requires a thermostat reset after failure, ensuring safer operation.
