The Rinnai Outdoor Thermistor Kit (803000081) is a genuine OEM accessory for i-Series Plus combination boilers. By measuring outdoor ambient temperature, this thermistor enables the boiler's outdoor reset control function, which automatically adjusts the heating water supply temperature based on outdoor conditions. Outdoor reset improves system efficiency and occupant comfort by preventing unnecessary over-heating on milder days. This kit provides everything needed to add or replace the outdoor temperature sensing capability.
- Genuine OEM Rinnai outdoor thermistor kit
- Compatible with Rinnai i-Series Plus combination boilers
- Enables outdoor reset control for improved system efficiency
- Automatically adjusts supply temperature based on outdoor conditions
- Reduces energy consumption and improves comfort on mild heating days