Case Study

Littlethorpe House reduces carbon emissions 

The owners of Littlethorpe, a renovated cottage in Yorkshire, replaced their oil heating system with a Kensa ground source heat pump and a solar PV system to improve the property’s sustainability and lower its carbon footprint. This case study was carried out in 2020.

Case study: The owners of Littlethorpe, a renovated cottage in Yorkshire, replaced their oil heating system with a Kensa ground source heat pump and a solar PV system to improve the property’s sustainability and lower its carbon footprint.

Summary   

  • Property type: Residential 
  • Technologies installed: Heat pump  
  • Size (kW): 21kW 
  • New/retrofit: Retrofit   

The recommended solution:   

After assessing the property, a 21kW Kensa hybrid ground source heat pump was specified and installed by local Kensa partner, Yorkshire Energy Systems. The twin compact Kensa hybrid heat pump utilises two refrigerant types to deliver efficient space heating and high water temperatures to 60°C. In the case of Littlethorpe, this enables high domestic hot water temperatures and sufficient heating output to meet the property’s peak heat load. 

Key features:   

  • Five 50m slinkies, 21kW Kensa hybrid heat pump, replacing oil heating. 

Outcome:   

The Kensa heat pump sources its heat from five 50m slinkies, which took just four days to install in the rear garden. During a wet and cold winter, Nest data shows that the ground source heat pump had been running for between seven to 13 hours per day, pulling about 6kW. *This equates to £230 for a high-demand winter month at 12.8p per unit.

Previously the cost of the oil heating system was £2,800 over the year; with lower usage in the spring and summer months, the owners will see substantial cost savings from the switch to ground source heat pumps and their aim to reduce their carbon emissions. 

Thanks to their new Kensa ground source heating system, Littlethorpe’s owners now enjoy a warm house without worrying about carbon emissions. 

*Details correct as of 2020.