demonstrates why it deserved to be the Winner
of the Domestic Air Source Project 2016, held at the Town Hall, Birmingham, in January.
Gatton Barn Farm had previously been an open barn without insulation or a heating system. The conversion saw it become a living area, care facility and home for the four members of the Davies family, with additional space for two carers who live permanently on site.
As well as seeking a system for low carbon emissions, the Davies family prioritised comfort as a key factor for the project, due the amount of time Daniel spends on the floor. The system also needed to have intuitive controls – switching the best available technology whist being robust and reliable.
Several technologies were considered for the site in the initial consultation. Oil was discounted due to it not maintaining the sustainable theme of this site, whilst biomass was also discounted due to the access issues for fuel delivery.
Ground source heat pumps were considered for the project, however ground shading and wildlife issues prevented this from reaching the performance standards required. This meant that air source heat pumps, supplemented by solar thermal and PV technology was the most viable option for the site.
Matrix Energy designed and installed a renewable heating system comprising of 2 Viessmann Vitocal 350 – A 14kw air source heat pumps, a Vitocell 30 cylinder 300L and 2x40 sets of Vitosol 300-T solar thermal tubes. Each governed by the Vitotronic 200 controls, which decides which energy source is best used any time.
The energy gathered from the solar thermal tube collectors, located on the properties roof, feeds into a hot water cylinder during the day, whilst the air source heat pump provides continuous hot water for the underfloor heating of the 18 rooms.
The 28kW delivered from the two heat pumps covers the demand for heating and hot water of the main house and the lodge, easily offering a comfortable environment while lowering running costs. In fact, Gatton Farm Barn costs less to run that the owner’s previous three bedroom detached property. In comparison to an oil fired system, this is a saving of around 70 percent per year, equating to £5700.
Key Milestones and Timings
Feasibility Study and Energy Calculations January
Lodge Part Demolished and Rebuilt February
Solar PV Installed March
Main Barn Gutted and Slab Laid April
Under Floor Heating Installed May
Interior of Properties Completed June
Air Source Heat Pumps and Plan Room Installed July
Solar Thermal System Installed – System Commissioning August
As a simple thermostat was installed there was no requirement for system training.
Just a quick note to say a well-deserved “thank you” for what you and your company have done for my family. The renovation to our 400 year old barn and surrounding farm buildings has been a resounding success and a year on I cannot believe we actually live here. The solution we were looking for was a tailor made solution to meet our family’s entire needs. You made it easy for to understand each option fully and therefore the decisions we made were fully informed.
Added to this, it’s comfortable and flexible to meet all our needs including that our youngest son who breathes via a tracheotomy and suffers with a circulatory condition. This limited us to certain types of heating systems and the fact that we spend a lot of time on the floor playing with him is marvellous as the underfloor heating, both upstairs & downstairs, is so comfortable.
Because of our sons condition it was of paramount importance we installed a reliable system for medical needs. We have been through 2 winters now and have complete confidence in the system….”