Based in Germany, Viessmann has been able to develop a respectable reputation for producing high-quality boilers. The Viessmann Combi Boilers in particular are often the subject of a lot of praise. They are generally quite expensive, and you should expect to pay somewhere between £600-£3,500. Though the boiler is usually worth the cost.
The Viessmann Combi Boiler can make your home life more convenient. For one, they can be quite compact in size and do not require any additional apparatus such as cylinders or tanks. This makes it ideal for small spaces or ones that have low / flat roofs. Since you only need the boiler itself, installation is much easier as you do not need to worry about any other components.
Worth noting is the fact that one singular unit is enough to provide hot water and heating in your dwelling. The hot water will also reach your taps and shower at main pressure. Part of the appeal with these combi boilers is that they are extremely energy-efficient, so you will potentially be able to save money on gas bills too.
Both outlets and customers are generally in agreement that Viessmann’s Combi Boilers are among the best on the market. Users note that their model is extremely reliable and, thanks to certain design decisions, is not prone to wear and tear in the way that rival boilers are. These design elements are the stainless-steel heat exchanger and the ability to adapt to different heating conditions without switching on/off.
While Viessmann may not have the recognition that some other brands do, its reviews are mostly all positive. Customers and reviewers alike appreciate the heating capabilities and convenience that owning a Viessmann Combi Boiler brings. They also praise the warranty, which can be valid for up to 10 years.
On the flip side, however, most acknowledge that Viessmann is quite expensive. Despite being one of the most reliable brands, its products are fairly inaccessible to those on a tight budget due to their price point.
It is not common for Viessmann boilers to break down very easily, they are widely considered as reliable units. But like most boilers, they can still be prone to certain problems. One of these is that there might be times when the heating works, but there isn’t any hot water. You might experience that the radiator does not fully heat up and half of it is still cold.
The burner can also be problematic as it can become faulty without giving a clear indication why or where the issue is originating from. Thus, you will know that something is wrong, but you won’t be able to diagnose the cause. Another issue that has been reported is the boiler not heating up.
Overall, Viessmann has made an impressive Combi Boiler that is capable of providing convenience and excellent heating / hot water to your home. They are generally solid units. However, for residential customers, it’s price point can be discouraging since there are many cheaper options available on the market.
Used examples that are still in great working condition are definitely worth considering, as they can sometimes be found for sale fairly cheap. If money isn’t a concern, and you want to buy brand new, Viessmann is highly recommended. Otherwise, it would be better to continue exploring and find something that is more suitable for your budget.