Example: Centralised System
If your holiday park has a central reception area, restaurant or leisure and entertainment complex, then you should consider linking a number of heat pumps together in a ‘cascaded system’ fed by a central ground array.
The ‘cascaded system’ design is very effective at coping with high heat loads, as the ground array, whether it be coiled slinky pipe, boreholes or pond mats, is sized to deal with the peak heat demand.
Benefits of a cascaded system
The cascaded system design can flex between periods of minimum and maximum heat demand; for example during the spring and summer when the need for heat is lower, only one heat pump need be in operation, with subsequent heat pumps coming into operation as the heating season progresses.
Another benefit of the system design is that, depending on the heat pump selection, it can be configured to provide 60°C hot water at the same time without the need for an additional immersion heater.
Costed example for water source
Has your holiday park got a water feature on site? Are you located near a river or stream whose heat you can harness?
Water is an excellent conductor of heat and therefore water source ground source heat pump systems are extremely energy efficient. See example costs
Costed example for slinkies
If your guesthouse is surrounded by fields or paddocks, then slinkies would be a viable option for a ground source installation.
Slinkies are the name given to coiled pipe buried in trenches at a depth of 1-2m where the ground temperature remains constant all year round. See example costs
Costed example for boreholes
If you don’t have access to a water source or exposed land area is limited, then boreholes might be a viable option.
Boreholes can usually be drilled into any type of ground and are a perfect space-saving solution, as the depth of the hole(s) is varied to suit the heat requirement. See example costs