Tekmar 261 Boiler Control

Tekmar 261 Boiler Control is a microprocessor-based controller designed for indoor heating systems, delivering precise 2-stage boiler operation. With DIP switch programming and an outdoor/universal sensor, this unit optimizes performance for boilers, baseboards, and fan coils, delivering efficient hot-water heating across varying loads.

Engineered for reliable residential and light commercial use, it features a 120 Volt AC input (50/60 Hz) with a rated 1300 Volt-Amp, and operates across a temperature range of 32 to 113°F. The system includes a 10 Kilo Ohm at 77°F NTC thermistor, an outdoor/universal sensor, and a blue PVC NEMA 1 enclosure for indoor installations. It meets UL, CAS, ICES, and FCC standards for safe, compliant operation. The unit supports indoor applications for heating and cooling systems, including boilers, baseboards, and fan coils, with robust environmental tolerance up to 95% RH non-condensing.

• 2-stage boiler control with easy DIP switch programming
• Outdoor/universal sensor compatibility for flexible placement
• 10 KΩ NTC thermistor (77°F) for precise sensing
• Indoor applications for boiler, baseboard, and fan coil systems
• NEMA 1 blue PVC enclosure for durable indoor mounting
• UL/CAS/ICES/FCC compliant for North American safety
• Electrical specs: 120 V input, 20–260 VAC demand, 1/3 HP at 240 VAC 10 A (relay)

Upgrade your heating control with the Tekmar 261 for precise temperature management, reliability, and easy installation.