We heard from 198 expert engineers who scored boiler brands on several tests. We asked them to score gas boiler brands on the following:

Many of our boilers come with a comprehensive 7 year parts and labour warranty, as standard (subject to the boiler being registered within 30 days). You have the option to extend this further which is chargeable, your installer will be able to provide further details. Full details of the warranty information for boilers can be found below.In 2012, the Viessmann Group acquired 100percent of shares in Viessmann Kältetechnik AG in Hof. The company is one of the most important manufacturers of temperature-controlled rooms for trade and industry. [11] In addition, the Finnish Norpe Group, the leading Scandinavian manufacturer of commercial refrigeration units, finned products and cooling units for the food retail trade, was acquired in 2013. From Allendorf to the world. Since its foundation in 1917, Viessmann has grown steadily as a company. It is now a large family with more than 13,000 members in 74 countries. Together with partners from different industries, our members work every single day to meet the ever-changing needs of customers and to change the energy supply in a way that is sustainable. For this process to occur, a fan is used to draw air across a heat exchanger (or evaporator). The heat in this air is transferred to a refrigerant circulating through the evaporator causing it to change from liquid to vapour. A compressor, using electricity, then compresses this vapour causing it to rise in temperature. At this high temperature, the heat is then suitable for transferring to the heating and hot water systems in your home.

With our comprehensive after sales support, we are here to help. Should you require support with your Viessmann heating system, we are able to provide it. Commercial refrigeration Solutions in the UK I Viessmann". cooling.viessmann.co.uk . Retrieved 2020-10-19.

Our customer services number is the best number to call should you want to book a service engineer visit, or should you have any non-technical questions relating to our products or services. When you select industrial heating systems or any other energy solutions from Viessmann, you can have complete confidence that you will benefit from a long service life and impressive reliability. This is because we use premium components and ensure an excellent build quality. We are also able to take advantage of the advanced engineering expertise that our team has acquired over a century of creating heating and power systems. Viessmann Investment also has holdings in the Polish manufacturer Kospel, which produces instantaneous water heaters, electric boilers and hot water storage tanks, Pewo (a specialist in heat transfer stations for local and district heating based in Dresden) and the installation and service provider for complex central heating systems Thermowise in South Africa. The portfolio of Viessmann Investment also includes LämpöYkkönen (full-range supplier for heat pumps in Finland), the electrical and infrared heating manufacturer Etherma in Austria and the British online retailer for Viessmann products and spare parts, Viessmann Direct in England. [14] For instance, the Vitodens 050-W is a combi boiler that comes with energy outputs of 29 kW or 35 kW.