The new Main unvented hot water cylinders are designed to deliver today's hot water requirements to a range of domestic properties. The coil-in-coil heat exchanger ensures rapid heat recovery whilst promoting boiler efficiency. 

50mm of factory injected polyurethane foam ensures that heat loss and running costs are kept to a minimum to help save the environment and minimalise fuel bills. 

There are four models in this brand new range of indirect domestic unvented hot water cylinders - The Main Unvented 120, 150, 170 and 210, all indirectly heated. Each cylinder is designed to be both easy to use and easy to install. 

This is achieved through the use of a clean, simple design with all controls and connections positioned in the front quadrant of the cylinder. The stainless steel inner container ensures a long life with low maintenance. 

Features include an indirect heating coil (factory fitted with an electric immersion heater as back up), coil-in-coil heat exchanger, high grade stainless steel cylinder, low heat loss, 1 year on-site service support including parts and labour and an additional 9 years parts only guarantee on stainless steel inner vessel.