White-Rodgers 11B18-101 Hydronic Control

The White-Rodgers 11B18-101 Hydronic Control is a reliable well-immersion hydronic control designed for both vertical and horizontal mounting. This durable unit delivers consistent temperature management for boilers and radiant systems, with a compact footprint that fits a range of installations.

Operating from 100 to 240°F with a differential of 5 to 45°F, it ensures precise control and responsive shutoff. The SPST, Open-On-Rise contact configuration provides straightforward wiring, while the motor ratings—10 A at 120 VAC, 6 A at 240 VAC (FLA), 6 A at 24 VAC, and 10 A at 0.3–12 V DC for valve and relay—offer broad compatibility. Finished in gray and UL and CSA approved for safety, this control also features a 1/2 inch standard shank and dimensions of 2-9/16 inches deep by 5-3/8 inches high, making replacement and retrofits easy.

• Type: Well-Immersion hydronic control for accurate sensing
• Mounting: Vertical or Horizontal installation
• Electrical: SPST Open-On-Rise configuration; compatible voltage/current specs
• Certifications: UL and CSA approved for safety
• Specs: 2-9/16" depth x 5-3/8" height; 1/2" standard shank