I have a Vaillant Ecotec 630 Plus that was installed in 2007 that is connected to a 300 litre unvented tank. This provides our hot water and feeds 4 floors of underfloor heating.
I am looking to replace both the boiler and tank and see they still produce this boiler. I assume the newest models would have design changes making them more efficient? Is it worth sticking with the same model or is there a different vaillant model I should be looking at?
I am looking to replace both the boiler and tank and see they still produce this boiler. I assume the newest models would have design changes making them more efficient? Is it worth sticking with the same model or is there a different vaillant model I should be looking at?