Underground 'Slinky' triple loop system. Flow and Return pipe work back to house/plant room. This was then built up with a concrete 'Manhole'.

This was a small plant room in which to site the hot water storage cylinder and compressors. All pipe work came back to this room controlling underfloor heating, towel rail circuit and some radiators on the upper floors. The incoming water main is to the right and each bathroom was valved separately.

On the right is an electric back-up system for the heating only as the hot water storage cylinder has an electric immersion for hot water back-up.

In the centre is a bronze pump providing a secondary return system in order to limit the dead-leg on the hot water system. This provides hot water continually circulating the property, ensuring that a small amount of water is drawn through a hot tap before it runs hot.