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Farmers' Welsh Lavender Farm

Sustainable Heating Blooms at Brecon’s Lavender Farm
20 November 2025 by
Farmers' Welsh Lavender Farm
Thermal Earth, Nick Salini

Farmers Welsh Lavender Farm Lake

Overview:

Farmers Welsh Lavender is a picturesque farm and visitor centre located in Brecon, with a strong ethos for sustainability. Originally a sheep farm, owners Nancy and Bill diversified by planting lavender in 2003, now producing their own skincare range and welcoming day visitors and overnight guests. The farm sought low-carbon heating solutions for both its office and residential farmhouse.

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Challenge:

The farm required reliable heating and hot water for both the office and farmhouse. A unique challenge arose as a public road separates the two buildings, preventing a single centralized system with connected trenches and pipes. The solution needed to respect the site’s landscape and sustainability ethos.


Solution:

Two separate ground source heat pump systems were installed to meet the farm’s requirements:

System features:

  • Office building: MasterTherm AQ22i, 2–7 kW output, compact enough to fit under stairs or in a storage cupboard.
  • Farmhouse: MasterTherm AQ45i, 7–22 kW output, providing efficient heating for a larger property.
  • Vertical ground collectors (boreholes) used to avoid digging under the public road.
  • Both systems eligible for Domestic and Non-Domestic RHI payments, supporting return on investment.



Key Benefits:

  • Low-carbon, sustainable heating system supporting farm’s green ethos.
  • Compact system design fits small spaces without impacting interior layouts.
  • Vertical boreholes allow full functionality despite site constraints.
  • Separate systems provide independence for office and farmhouse operations.
  • Eligibility for RHI payments offsets initial investment.
  • Reliable and efficient operation for both commercial and residential use.


Results: 

  • Both buildings receive consistent heating and hot water from renewable sources.
  • Farm continues to operate sustainably while expanding visitor and commercial offerings.
  • RHI payments provide financial support, aiding the farm’s long-term investment in low-carbon technology.


Client Feedback / Quote: 

"This project allowed us to maintain our sustainability goals while ensuring our visitors and team are comfortable. The ground source heat pumps have been a perfect solution for our farm’s unique layout." – Nancy & Bill, Owners