Honeywell Home ST9400C 7 Day 2 Channel Programmer ST9400C1000Honeywell Home controlling heating and stored hot water in complete systems, the Honeywell ST9400C two channel, seven day programmer has up to three on off periods per day, optional 5 2 or one day programming and independent heating and hot water control for maximum efficiency. Offering the option to set as a mini programmer for older gravity circulation stored hot water systems, where there is no interlocking control valve, ST9400C is suitable for

POTTERTON PERFORMA 30 HE (SECONDARY HEAT EXCHANGER)

This part is present 3 different boilers in the Glowworm range including the Glowworm Ultracom 2 24CXi

Vaillant Ecotec PLUS 637 VU 376 /3-5 Connection Pipe 0020068957 Original NEW

Monitor fuel consumption

SX & CX boiler ranges

Glowworm Energysaver 80 Combi

It allows the hot water to be sent to the central heating system (radiators

Vaillant ecoTEC PLUS 615 R2

Ending in BC & CC  – 41-592-41 BC Potterton Gold System 28 Erp Serial No

Alternatively let the EasyControl take over

Thermocompact 637E VU 362/2-5 2002-2004

Manufactured in UK"