VAILLANT ECOFIT PURE 825 830 835 COMBI VUW BOILER ELBOW 0020231132VAILLANT ECOFIT PURE 825 830 835 COMBI VUW BOILER ELBOW 0020231132.

OPTIMA 700

A boiler’s printed control board (PCB) sends a current to the thermistor

Suitable for private and rented homes in England

Worcester Greenstar Junior 24i 28i Fan 87161160670 87172044530 8716118443

It is set to open proportionally to increasing pressure to stop pressure building up and breaking the system

Helps reduce heating bills - Up to 6% a year

allowing users and engineers to monitor boiler pressure for safe and efficient operation

BAXI/MAIN/POTTERTON NTC SENSOR THERMISTER 5114725 - BRAND NEW

This part fits the following 10 appliances (sorted alphabetically):

Ideal Domestic ICOS HE 18

ECOTEC PRO 26 VUW 266/5-3 A R4

The various designs have changed over the years