Always check your data plate to confirm part number requirements for your specific BTU input

The 35-66 series control is built with a ruggedized design to withstand heavy-duty cycles

maintaining the integrity and efficiency of your HVACR equipment throughout the cooling season

The pan is a pressurized component of the venting system

The Modine 5H0715730002 Modulating Valve is a critical OEM component designed for high-precision fuel regulation in commercial and industrial gas-fired unit heaters

Viessmann 7820148 Sensor 340155-7024 Always check your data plateThe Viessmann 7820148 Sensor serves as the primary outdoor temperature sensor for weather responsive heating systems, enabling critical compensation logic for gas condensing boilers. Engineered for high accuracy ambient monitoring, this NTC thermistor ensures the Vitotronic 200 and 300 control units can dynamically adjust the heating curve based on real time meteorological data. By integrating this OEM replacement part, technicians can resolve common