Founded in 1928 in Germany by Theodor Heimeier, IMI Heimeier offers a comprehensive range of suitable products that you can trust to achieve comfortable and energy-efficient home climates. With a competitive range of products to choose from, including standard and design edition Thermostatic Radiator Valves (TRVs), and heads, room thermostats and actuators, underfloor manifolds and heating controllers. Heimeier also offers a range of two and three port control valves, thermostatic water mixing valves (TMV) and circulation temperature balancing valves, ensuring you have a thermostatic control solution for every challenge you face.