The New Vaillant Eco Tec Combination Boiler Vaillant Eco Tec The Vaillant Eco Tec boiler is without doubt one of the best boilers around today. The only other boiler that comes close is the Worcester Greenstar. Some say the Worcester is better, some say the Vaillant, it all depends on the installer. But in general they are both as good as each other. The [...]
Duval Heating 1985 -2022