Ray Trueman
The best boiler on the market is the Vaillant ecotec plus it comes in various sizes from 24kw to 937 which is a 37kw storage combi it has a stainless steel heat exchanger unlike worcester Bosch which has an aluminum heat exchanger it also come with 7 years warranty if fitted by a Vaillant approved engineer you can go on the Vaillant web site and find a local approved engineer hope this helps cheers Ray
