If you are looking for a Luton heating engineer and you need something replaced, fitted, or fixed, contact ECO Green Upgrades Ltd today. We are competitively priced and recommended by Luton customers for all heating work.
"I have a 2013 Vaillant combi boiler the radiators get hot whenever we turn on the hot water tap. replace old honeywell thermostat wired to a new wired Honeywell T6 smart thermostat (new device with me)"