

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The NTI 82671 is a thermistor sensor designed for use with NTI condensing gas boilers, specifically the M100(V) and Ti100-200 model series. This replacement thermistor fits with a 1/8 inch BSP thread connection, making it a direct drop-in part for technicians servicing these units in the field. A thermistor is a temperature-sensing resistor that changes its electrical resistance in response to changes in temperature. In a condensing gas boiler system, the thermistor provides real-time temperature data to the boiler control board. That data is used to regulate burner firing, heat exchanger performance, and overall system efficiency. When a thermistor fails or reads inaccurately, the boiler may short-cycle, fault out, or fail to maintain proper water temperature. Replacing the faulty sensor with an OEM-matched part like the NTI 82671 restores accurate temperature feedback and proper boiler operation. HVAC technicians and boiler service professionals rely on original manufacturer parts to ensure compatibility and avoid control board errors caused by out-of-spec sensors. The 1/8 inch BSP thread sizing is a standard British Standard Pipe fitting common in hydronic heating equipment. NTI condensing boilers are used in residential and light commercial applications for high-efficiency space heating and domestic hot water. Keeping the right thermistor on the service van reduces diagnostic time and gets systems back online faster. This part is suited for any technician who regularly services NTI boiler equipment and needs a reliable OEM replacement sensor.
The NTI 82671 thermistor is an OEM-matched temperature sensor built for NTI condensing gas boilers. It provides the accurate temperature feedback needed to keep high-efficiency boiler systems running safely and reliably.
Thanks for subscribing!
This email has been registered!