Consumer demand for powerful showers and fast-filling baths is said to be driving the market. In 2006, unvented sales grew by 13.5%, and 40% of cylinders bought are now mains pressure.
Megaflow HE cylinders are said to be unique in this market by virtue of an internal air gap and floating baffle to cope with water expanding as it is heated — giving the product a neat and self-contained design, compared with most other unvented cylinders on the market requiring an external expansion vessel.
Continuing improvements in the materials used and manufacturing processes enable Heatrae Sadia to offer a 25-year transferable guarantee on Megaflow HE, which covers on-site parts and labour.
The latest development is a solar thermal product, Megatech. It is designed to be used with solar panels and evacuated-tube systems.




