Ferroli Temperature Sensor 39806670 *NEW*Ferroli Temperature Sensor 39806670 *NEW*. This Ferroli NTC sensor with a built in clip is suitable for use in Arena, Maxima, Optimax, Optimax HE Plus, Tech, and Optimax HE boilers. The sensor is employed to increase circuit resistance in line with temperature drops. A boilers printed control board (PCB) sends a current to the thermistor, deciding whether a decrease or increase in heat is required by reading the relative resistance. Brand: Ferroli

VAILLANT VUW 316/5-5 (2012-CURR)

Vaillant Solar Expansion Vessel White 0020059914 25 Ltr

Genuine Vaillant EcoTec Pro 24 & 28 Heat Exchanger Insulation 193595 Free P&P

or to operate spring return and motor open/motor close zone valves

it is entirely expected that there may be some light cosmetic damage

Baxi Megaflo 32 HE A System LPG (GC No

GENUINE VAILLANT TURBOMAX PLUS 824E 828E 837E PRO 24E 28E DIVERTER VALVE 252457

Vaillant ecoTEC Pro 28

Part Gas Council number: 795422

VAILLANT VUW 286 E (1995-1999)

BTH1112 Issue 9)  – 47-075-37 Baxi Duo Tec 33 HE A (Before Serial No

Manufactured in UK"