Tove Valley Holidays
200kW woodchip boiler with 7,000 litre accumulator tank
Dunster were approached by the construction company re-developing a series of disused agricultural buildings for Tove Valley Holidays. Involved at an early stage, Dunster were asked to look at the most economical way of providing heat and hot water across the site, whilst complying with the latest building regulations.
The development was to build twelve high-end self-catering holiday cottages with all heating and pipework to be concealed – a challenge with most walls being stone faced and the ceilings vaulted. The decision was taken to install a 199kW ETA HACK woodchip boiler for the entire site, located within a large stone built boiler house that would leave enough space for another system if the site was developed further in
Fuel supply and chip handling
The boiler was specified and commissioned to burn woodchip fuel. Fuel is supplied from a combination of timber harvested from the owners own land supplemented by further cord wood bought in. Timber is stored on site for seasoning and chipped annually by an external contractor. Woodchip is then stored within a large grain barn and then transferred to the fuel store by tele-handler and front loader. The fuel store is sized sufficiently to take a full articulated lorry load of woodchip if necessary.
System design and installation
The system has been designed to satisfy the heating and hot water needs of the twelve, two to four bedroom cottages, and a further three in the future development plans. Dunster designed the heating and hot water systems for each of the properties utilising the ETA BMS control package for the remote access and monitoring of the entire system by the management company. As the buildings are all linked it was decided to run internal heat main within the flooring of cottages and then install new high performance cylinders, manifolds and controls within specially designed riser cupboards.
Tove Valley Holidays have secured a strong stream of RHI income guaranteed and index linked for twenty years together with fuel costs below half of those achievable with LPG or oil. Further marketing benefits have been obtained by enhancing Tove Valleys environmental credentials.
Recent Dunster case studies
Nethybridge Centre – 70kW wood pellet boiler
Gilmour & Aitken Ltd, Scotland – 500kW woodchip boiler
Blervie House, Moray – 205kW woodchip boiler
Beaulieu National Motor Museum – 1.2mW woodchip heating system
Southern Wood Energy – Froling LM KOM-H 1000, woodchip heating system
Southern Wood Energy – Froling woodchip CHP50 Plant
West Country Estate – 130 kW Woodchip District Heating Scheme
Wiltshire Estate – 130 kW woodchip district heating scheme
St Paul’s Church, Weston-Super-Mare – Containerised 140kW wood pellet heating system
Alvie Manse, Inverness-Shire – 35 kW Wood Chip Heating System