All our ecoTEC boilers have Vaillant’s key qualities traits running through them: fantastic engineering, incredible efficiency, compact and subtle design. We use only the highest quality components – because reliability is as important to us as it is to you. With compact dimensions and a range of flueing options mean the ecoTEC boiler is as versatile as ever. We’re just as committed to performance too. With ratings of up to 90% efficiency – make the ecoTEC range about as frugal with fuel as you can get, meaning saving energy has never been so easy. What’s more, with a Quiet Mark Award from the UK Noise Abatement Society, it’s one of the most understated miracles of engineering we’ve ever produced.