Mill Hill Cottage Plumbing & Heating Ltd

(Previously Heating Innovations)

Home Up H5 diagram H5 system layout H5 system operation


The H5 panel has been developed so that a solid fuel appliance can be linked into a central heating system with a ground or air source heat pump, enabling both to provide energy to heat the hot water, under floor heating and/or radiators.

The panel allows either the solid fuel boiler or the ground/air source heat pump to run system individually or in tandem, using all the available energy from solid fuel boiler, topping up with the heat pump only when required. 

When run in tandem (link up) the energy from the ground/air source heat pump is passed into the return pipe work of the solid fuel appliance, which continues to lift the temperature and then passes it on to serve the heating system. The panel makes full use of both appliances efficiently and does not waste any energy and is therefore more cost effective.

In link up mode, when the flow temperature has reached the desired level the solid fuel appliance takes priority, switching off the ground/air source heat pump and also closing the circuit to the heat to prevent heat being wasted.

Should the solid fuel appliance be unattended and cool down, the ground or air source heat pump takes over heating the system and similarly the circuit to the solid fuel appliance closes down to prevent heat being wasted.

Either of the appliances can be used separately to run the system and the one that is not firing or working remains cold.

A programmer is used to time the system along with necessary thermostats for room temperatures and hot water control, making the system comply with part L of the building regs.

November 2014 Upgraded, introducing the Heat Leak Loop (patent applied for)

The H5 control system

Contact Mill Cottage Plumbing & Heating Ltd

Technical Support and Sales

Telephone 01354 653854