"Founded 1874 in Germany and still family owned Vaillant employ over 13'000 To which we develop and manufacture our products at 16 sites in 8 Countries, and sell our products to over 80 counties. For more than 135 years, Vaillant has set the standards in the heating market, creating products that have revolutionised the industry. As Europe's Number 1 boiler manufacturer, innovation comes as second nature. Our products boast the highest energy efficiency ratings and lowest emissions, and come with an enviable reputation for performance, quality and reliability." Vaillant manufacture commercial and domestic boiler's and renewable products such as solar domestic hot water system's, air to air heat pumps, ground source heat pumps and heat recovery ventilation.