Ralf-Otto Limbach

Turk Demir Dokum Fabrikalari AS manufactures and markets heating and cooling systems. It offers heating and cooling apparatus ranging from panel radiators, water heaters, central heating system, individual heating system and air conditioners. It operates through a brand of Heat Comfort. The company was founded by Vehbi Koc on September 29, 1954 and is headquartered in Istanbul, Turkey.

Vaillant Deutschland GmbH & Co. KG provides heating technology products. Its product are based on gas, oil, electricity and solar energy. The firm's products include hot water boilers, electric & heating appliances, water heaters, storage tanks, solar systems, heat pumps, air conditioning units and photovoltaic systems. Vaillant Deutschland was founded in 1874 by Johann Vaillant and is headquartered in Remscheid, Germany.

Saunier Duval ECC SA manufactures heating appliances that includes non-condensing and condensing boilers that supply homes with warmth and hot water, heat pumps that are used to support renewable energy systems, solar-powered solutions, and air conditioners. The company was founded in 1907 by Charles Saunier and Maurice Duval and is headquartered in Fonatenay-sous-Bois, France.

Part of Joh. The company is based in Fontenay-sous-Bois, France. Vaillant GmbH & Co. KG, Vaillant Group France is a French company that manufactures and installs boilers, heat pumps, and water heaters. The company was founded in 1955. The CEO is Ralf-Otto Limbach.

Vaillant Group UK Ltd. supplies heating solutions, hot water, central heating and air conditioning systems. Its products include combi, open vent controls and accessories, cylinders, air to water heat pumps, air to water hybrid system, ground source heat pumps and solar thermal. The company was founded in 1874 and is headquartered in Belper, the United Kingdom.