Honeywell Digital Round Thermostat with manual changeover and R,Rc,O,B,G,Y,W terminals provides single-stage temperature control for 24V gas or oil Heat Only systems. The Honeywell T8775A1009 includes a thermostat, wallplate (for wiring and mounting thermostat), mounting screws, wall anchors, and a 4074 FAB resistor.


  • Attractive styling complements any decor
  • One-touch backlit display
  • Familiar twist-to-see operation. Available in Heat/Cool and Heat Only models
  • Includes: Wallplate, resistor assembly, mounting screws and wall anchors

Honeywell T8775A1009 Round Non-Programmable, Heat Only, Digital Thermostat

SKU: T8775A1009