Mitsubishi Ecodan Hybrid heat pumps with existing oil/boiler system (CP786)

The project involves the installation and monitoring of 5kW Mitsubishi Ecodan Hybrid Air Source Heat Pumps interfaced with existing oil boilers (Hybrid ASHP) into 10 properties. The Hybrid ASHP is designed to work with the existing oil-fired boiler currently used as the main source of space and water heating. The hybrid ASHP works in combination with the existing boiler, operating when the outside air temperature is above a pre-set level. Below this level the existing oil-fired boiler will heat the property to ensure that the ASHP operates at the optimum efficiency.

The project had the following aims:

• Fuel bill reductions
• Ease of use with on-demand heating
• Back-up system in case existing heat source (fuel oil) runs out
• Reduction in fuel poverty