Ecodan delivers efficient heating throughout harshest of winters
This 1950’s 4 bed semi in Berkhamsted, Hertfordshire is home to a family of four looking to reduce energy bills by using advanced techonolgy to heat their home more efficiently. In the autumn of 2010 they installed a Mitsubishi Electric Ecodan system, replacing all of their existing radiators with intelligent,
modern radiators from Jaga.
Last winter saw some of the harshest conditions for decades, with temperatures plumetting to sub-zero for weeks. But as the UK endured the coldest of winters, live on-site monitoring has proven that Ecodan worked effectively to keep this family warm whilst significantly reducing their energy bills. The trials also
highlight the importance of radiator selection. Using correctly sized radiators ensures optimum system performance and comfort levels, with Ecodan able to deliver efficiency levels in excess of 300% even in the harshest of conditions.
An 8.5kW Ecodan unit was is installed in the alleyway of the house to provide all the heating and hot water that this family of four require. In addition to supplying the domestic hot water the Ecodan feeds nine Jaga Strada Dynamic Boost Effect radiators installed throughout the home. These modern radiators offer maximum efficiency at low water temperatures and contain around 15% of the water held in a traditional radiator. This means there’s less water in the system and they’re able to deliver required heat much quicker and therefore more efficiently.
With some manufacturers now claiming COPs of 4.0 or even 5.0 (5kW of heating from every 1kW of electrical energy consumed by the heat pump), Mitsubishi Electric are urging anyone considering a heat pump to remember that these COPs will typically have been measured in laboratory conditions at an outdoor temperature of 7°C (or higher) with the unit supplying a water flow at a temperature of 35°C, or even lower.
Radiators such as the ones installed in this home, use small fans to aid convection. This ensures that the space is heated relatively fast, even when the flow temperatures are low. Consequently the average flow temperature from the Ecodan system can be lowered to reduce running costs further still.
Ecodan has given this young family greater control, improved comfort and significant reductions in their overall energy use.