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Gregynog is a historic house with Grade 1 listed gardens set in the heart of rural Montgomeryshire. One of Wales’ premier country estates, and the former home of art collectors and public benefactors Gwendoline and Margaret Davies.

It is one of Wales’s most unexpected hidden treasures, whose name has echoed down the years since the first elusive references to it by the 12thcentury poets of the Welsh princes.

The house had three large oil fired boilers, two of which had ceased to work. In order to provide an efficient heating and hot water system able to service not only the main building but the courtyard buildings, we removed the two redundant boilers and installed a 200KW ETA woodchip boiler with the remaining 450KW oil boiler as a back up.

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Plas Dinam

Plas Dinam was designed and built in 1873/4 by the well-known London based architect, W.E. Nesfield for his client, Captain Offley Crewe-Read, deputy lieutenant of the county and JP, and a descendant of the ancient Crewe family of Flintshire and Cheshire. The family did not ever actually live at Plas Dinam, and sold it when they ran into financial difficulty.

In 1884 Plas Dinam was bought by David Davies of Llandinam. Despite having been born into a humble family and starting work as a sawyer, David Davies went on to make a considerable fortune in the industrial revolution in Wales.

Aa a result of a major fire in 2001 we designed and installed a completely new oil fired central heating and hot water system. Due to the continuing rising cost of oil the system was upgraded with a 199KW Hertz pellet boiler. This was late converted to enable the use of wood chip, which is conveniently sourced from the estate, thus making the system even more cost effective. 


Dolaugwyn was originally built in the 17th Century and had never been fitted with a modern heating system. Working closely with Dyfi Archetecture we designed and installed 2 x 45KW  ETA wood pellet boilers to provide a complete hot water and heating system with minimal intrusion into the fabric of the house thus maintaining its unique integrity.

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The Brook Mill

The Brook Mill is an old mill house nestling in the hills of Powys and had an old inefficient gas boiler providing its heating and hot water needs. After discussions with the new owners it was decided to install a new wood pellet boiler. For this installation we used an ETA PC40KW wood pellet boiler with a 825lt accumulator. This not only provided the customer with an efficient hot water and heating system greatly reducing costs but also enabled them to claim the relevant RHI payments which will eventually pay back the full cost of installation.

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