What You Need to Know

Open-vent (heat-only) boilers typically have a hot water storage tank located in than airing cupboard, as well as a cold water tank in the loft. The open vent system is more common in older houses, but has the advantage that the hot water can be stored for ‘peak usage’, so if you have more than one bathroom and more than one person using the hot shower at a time then you’ll get much more than just a dribble out.

Vaillant have used only the highest quality components in building the 428, which is clear when you listen to how quietly this boiler runs (it also received the Quiet Mark.) The boiler itself is stylish, compact and kitchen friendly with a drop down flap that reveals intuitive and easily programmable controls. Built in 2 stage frost protection means the boiler is totally reliable year round. Hassle Free Boilers can install this model with in 1-2 working days, and a 5 year warranty is provided as standard. Vaillant boilers have proved time and again to be the most dependable and efficient on the market and that’s why we love installing them.

The Vaillant Group have been around for over 130 years and are exactly who we think of when the expression ‘German efficiency’ comes up. They are leading the boiler industry in terms of efficiency and reliability, and that is why we love installing Vaillant models; Because our customers love them too. If you’re still not sure about which model you should be installing then contact our help team now. They’ll be able to run through the calculations and work out the best siezed boiler to suit your home.