Can trenches be installed on a downward sloping site?
Yes, provided the trenches can be dug, a moderate downward slope is not a problem. Consideration needs to be given to purging air from a system with ground loops higher than the heat pump.
I have a large plot of land but the ground is quite hard. Can a shallower trench be dug?
Yes, the ground loop coils can be laid so that the coils lie horizontally in the trench rather than vertically. This would need a wider but shallower trench depth to at least 1.2 metres. However, this is not as satisfactory as a deep trench in which the coils are vertical and you will need a special slinky configuration and probably longer trenches. Your installer will be able to advise you accordingly.
I have some very wet land. Can I use this?
Yes, wet land is better at conducting heat so, as long as a trench can be dug, it is ideal.
I have a large pond. I have a stream. Could this be used?
Yes, it is possible to use very large ponds and fast flowing streams as a heat energy source using an open loop system.
Are ground source heat pump systems environmentally friendly?
Yes. In the UK, there is now a strong move towards alternative technologies that are sustainable and environmentally much more acceptable. 40% of CO2 emissions are derived from the heating of buildings. By using renewable sources of energy to heat your property you can help to reduce these carbon emissions, particularly when compared to burning fossil fuels such as oil. Most electricity suppliers are now offering 'clean green' electricity from a renewable energy source and, if you use this to power your heat pump, your property will be totally heated from renewable energy with zero carbon emissions.
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