White-Rodgers 1E78-151 Thermostat

White-Rodgers 1E78-151 Thermostat is a reliable, 5+2 day programmable thermostat designed for 1-Heat/1-Cool systems, ideal for conventional heating and heat-pump setups. It operates as a 1-stage control and offers flexible power options—30V battery or 24V AC hardwire—so you can choose the configuration that fits your installation.

With a rectangular vertical cover and standard wiring terminals (RC, RH, W, Y, O, B, G), this thermostat delivers straightforward installation and dependable performance across a range of HVAC configurations. It supports gas, oil, electric, and millivolt systems and is compatible with NEC Class II installations.

• 5+2 day programmable scheduling for weekday and weekend comfort
• 1-Heat/1-Cool operation for conventional systems and heat pumps
• 1-stage control with flexible power options: battery (30V) or hardwired 24V AC
• Terminal designations RC, RH, W, Y, O, B, G for easy wiring
• Temperature ranges: setpoint 45–90°F; display 32–99°F; ambient 32–105°F
• Compact dimensions: 3-3/16"W x 1-1/8"D x 5-5/16"H; display 1.2 in²