Comfort Mode (Water) is also heating radiators.

27 Jan 2021
Reaction score
United Kingdom
Hi, we have a Vaillant ecoTEC pro 28 boiler and when we turn the 'Comfort' setting on to use hot water on demand, it also heats our radiators. They're piping hot all the time - but the radiator symbol isn't showing on the boiler.

If we turn the comfort Mode off this obviously doesn't happen, but it takes a very long time for the water to heat. Sometimes over 10 minutes to the kitchen tap right beside the boiler.

Can anyone please help or advise on what may be causing the issues?
Sponsored Links

DIYnot Local

Staff member

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.

Are you a trade or supplier? You can create your listing free at DIYnot Local

Sponsored Links