17th Century Church Conversion, Felindre
- LocationPowys, Wales
- Completion DateOct 2016
This renovated 17th century church in rural Wales may give some the chills, but thanks to modern energy efficiency measures and a ground source heat pump from UK manufacturer Kensa Heat Pumps, its owners are toasty warm by harvesting free energy from their grounds, which also attracts seven years of quarterly income through the Renewable Heat Incentive (RHI: this scheme has now closed – please visit this page (https://www.kensaheatpumps.com/funding/) to explore other funding) as a big treat on the side.
With the support of Kensa Partner Installer, Ground Sun (https://www.groundsun.co.uk/),the property has been converted to a modern, energy efficient residential dwelling.
The rural off gas location of the site made a ground source heat pump the ideal solution.
Naturally, the church required extensive energy efficiency improvements to ensure the project’s suitability for a ground source heat pump. Ground Sun worked closely with the architects and the builders on this project making recommendations about underfloor heating and insulation to ensure the heat pump would work as efficiently as possible and to satisfy the client’s desire for a sustainable, energy efficient home.
Thanks to the energy efficiency measures installed the heat loss for the building was reduced to c.30W/m2. Typically buildings of this nature prior to fitting modern energy efficiency measures would expect a heat loss of 100-120W/m2 (this would mean the project would have been looking at a 24kW heat pump rather than an 8.5kW High Temperature heat pump!).
Following the energy efficiency improvements a Kensa 8.5kW High Temperature Single Compact (https://www.kensaheatpumps.com/product/4-3-8-5-kw-single-phase-high-temperature/) heat pump was chosen to provide all the heating and hot water for the 274m2 property.
It was also important to get the heat loss for the building lowered as there was only enough ground to install 3 x 50m long slinky trenches to accommodate the 8.5kW heat pump. The trenches were dug by the builders on the project and filled with a total of 900m of PE32mm slinky pipe.
The MCS accredited renovation qualifies the client for quarterly payments from the government’s Renewable Heat Incentive (RHI: this scheme has now closed – please visit this page (https://www.kensaheatpumps.com/funding/) to explore other funding); these payments will continue for a 7-year period.
The ground source heat pump is installed in a subterranean plantroom to the rear of the church. As it’s a very wet part of the country it was decided the heat pump should be fitted on an elevated steel reinforced shelf in case of flooding (although Kensa heat pumps have been reported to work even after immersion, it is best not to design on this assumption!).
Brian Connell, Director at Ground Sun comments: