Honeywell Home T3R Y3H710RF0053 Wireless 5 + 2 Day Thermostat with Stand Boilers which helps the flow to

which helps the flow to go through the 2 port heat plan in either direction as required

it supports OpenTherm communication to help improve boiler efficiency and reduce energy use

15mm angled TRV

Vaillant VU 246/3-5 (2005-2005)

Honeywell Home T3R Y3H710RF0053 Wireless 5 + 2 Day Thermostat with Stand Boilers which helps the flow toHoneywell Home T3R Y3H710RF0053 Wireless 5 + 2 Day Thermostat with Stand Recommended for domestic use and suitable for social housing, new builds and mass installation, the Honeywell Home T3R wireless 5+2 day programmable thermostat with stand offers compatibility with a variety of boilers and systems, including 24 230V on off gas and oil boilers, combi boilers and heat pumps. Providing complete time and temperature control via an easy to understand