Ground Source Systems Options
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There are a number ways of configuring the ground loop with a
ground source heat pump installation. The primary difference between
this methods is cost and space requirements.
 Slinky Pipe
Slinky pipework offers one of the lower cost options for installing a ground loop. By looping the pipe as shown in the photo a large amount of pipe can be used to collect heat from a relatively small area.
Straight PipeStraight pipe can be laid in narrow trenches rather than being looped as per the slinky method. A straight pipe configuration will typically require more land than slinky but this means that the heat collection is spread over a larger area which can lead to increased running efficiency.
 Bore Hole
When space is at a premium a hole can be bored directly down into the earth. Typically this holes vary from 50-100m. Bore hole drilling is relatively high in cost but uses minimal space.
 Lake Source
When the property is relatively close to a lake or large pond, heat can be extracted from the lake. This solution does not require extensive drilling equipment and pipework can be laid closer together due to the high conductivity of the water. If you are fortunate enough to own an expanse of water this can be a perfect solution.
Alternatives
When space and fund are at a premium it may be worth considering an air source heat pump as an alternative.
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