| Boiler: | Gilles HPK-RA 40 |
| Output: | 40kW |
| Fuel: | Woodpellets |
| Fuel Storage: | Purpose-Built Wooden Structure |
| Fuel Storage capacity: | 17m3 |
| Annual Heat Load: | 84MWhrs |
| Annual Fuel Requirement: | 18 tonnes of Pellets |
| Annual CO2 Saving: | 20 tonnes |
| Features: | Automatic ignition, heat exchanger cleaning, ash removal |
| The installation near Dunmow is heating a large house which the owner wanted to cause minimal environmental impact. A GILLES biomass heating system was chosen because the reliability of this ‘carbon neutral’ technology did not require any backup systems.
A GILLES wood pellet heating system was installed to meet the heating and hot water requirements of the building. |
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This beautiful new property was recently developed. During the building work the owner was keen to maintain an approach sympathetic to the local environment. Wood pellet heat seemed a great way to reliably provide all heating and hot water requirements whilst keeping the carbon footprint down. Importantly no back-up, as is usual with other systems, has been installed.
THE BOILER The GILLES system was chosen because of its high levels of automation and efficiency. This means the 40kW system is comfortably able to supply the demands with the same human interaction as a gas or oil system, except for the emptying of the ash box every few months. The reliability of GILLES systems mean that this fully automated, stand alone 40kW system is all that is required to meet all of the heat demand for the property. THE FUEL STORE Continuing the design ethos of minimal human input to the system a large pellet store was constructed allowing for infrequent fuel deliveries, reducing the associated haulage cost. The high energy density of wood pellets allows this large fuel store to fit in relatively small space. The fuel store in this situation is in the form of a wooden clad structure adjacent to a boiler house of similar construction and has the capacity to hold 13 tonnes of pellets – enough for a year’s worth of heating. |
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| THE FUEL & COST SAVINGS
The owner of the property decided to go for a wood pellet system as he recognised the ease with which pellets can be handled and stored and the regulated uniformity of the quality of the pellets. As good quality pellets produce around 1% ash during their combustion, the owner only needs to empty his ash container once every four months. With a cost saving of 0.2p/kWh the present fuel saving is small and with the prospect of several wood pellet plants coming online in the area this saving should grow over time. |
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