Introducing the HL-109: Advanced High-Limit and Frost Protection Thermostat from Whisper Controls
Whisper Controls is excited to announce the launch of our innovative HL-109 digital pipe thermostat, designed to ensure the safety and efficiency of heating systems. Backed by our market-leading five-year warranty from the installation date, the HL-109 acts as a fail-safe mechanism to monitor and control the heating system’s temperature, preventing it from exceeding predetermined […]