What is an evacuated tube solar hot water panel?

A solar panel heat collector is a device that captures the heat of the sun and is suitable for heating domestic hot water, swimming pools etc - even in the winter! One unit is adequate for an average household (3-4 people), and it is modular, so you can add more if required. A single panel is sufficient for a 250 litre cylinder, but you can fit 2 or more for high water usage, or for heating swimming pools. Some types of renewable energy are only available in certain locations, however free solar heating is potentially available to almost every house in the UK!

An assembled 58mm 22 tube evacuated tube solar hot water panel

and 70mm 20 tube high efficiency panel.