injected PUF to provide maximum heat retention. Each Evacuated Tube has a unique V shaped SUN-MAX reflector. This ensures maximum absorption of solar energy as the rays are reflected back on to the tubes, thus increasing the product’s efficiency. Racold is a brand of MTS SpA, Italy, the world’s largest water heater company. It manufactures and sells Electric, Gas and solar water heaters in over 150 countries and has over 21 plants world wide. MTS solar energy solutions are successfully sold in European countries like Italy, France, Spain, Belgium etc.