White-Rodgers 1C20-101 Thermostat

The White-Rodgers 1C20-101 Thermostat is a dependable mechanical thermostat designed for single‑stage heating. This 1-Heat, 1-Stage unit uses an adjustable heat anticipator and a durable bi-metal sensor to deliver precise, steady comfort in everyday homes.

Engineered for 24V AC operation (50/60 Hz), it provides reliable switching with a snap-action contact. The vertical cover houses a robust bi-metal element, offering a 2°F differential and a temperature range of 50–90°F. Compact in size (2-7/8" W x 1-1/2" D x 3-3/4" H), it fits standard installations and terminals are labeled R and W. Includes a wall mounting plate and a switching sub-base for quick, secure wiring.

• Type: Mechanical, single-stage control for 1-Heat 1-Stage systems
• Adjustable heat anticipator for precise temperature management
• Voltage: 24V AC, 50/60 Hz; Current: 0.15–1.2 A
• Switch: Snap-action for fast, reliable response
• Differential: 2°F; Temperature range: 50–90°F
• Construction: Bi-metal with R and W terminal designations
• Includes: Wall mounting plate and switching sub-base