The ESi Controls Combi Controls Pack 2 Zone includes 2 ESRTP4 Programmable Room Thermostats, 2 Motorised Zone Valves and 1 Wiring Centre. The ESCPC2ZP Combi Kit provides fully independent time and temperature control of the two heating zones when installed in conjunction with a Combi Boiler. This ensures that when all the heating demand is satisfied, the boiler and pump are switched off by the controls. This standard pack meets the requirements of Part L of the building regulations and provides clear digital displays for both the heating controls making it ideal for new-build housing. The kit comes pre-boxed and all components are optimised for quick and fault free installation, straightforward initial testing and easy annual maintenance. Economical Pre-boxed Ideal for new-build housing Quick installation 3 year warranty Easy annual maintenance Easy fit backplates Factory set time and date with automatic BST/GMT 1 hour time change Simple user operation http://www.esicontrols.co.uk/cpc2zp.html