Funny that, the Valiant were boilers of choice, easy to install, service and replace parts, except when they went all plastic, have they really declined?Vaillant. It’s been a stinker but I’m not alone. There are lots of posts on forums about them and I have found a lot of installers don’t recommend Vaillant. The Ecotec went through a very bad patch which they resolved but I would not touch another one.
Intergas combis were the rage years ago but their parts are really expensive and pool of installers very few.
Veismann boilers were cosidred very good but parts are very very expensive.
