Open Ground Water Loop
Requiring less excavation, the Open Ground Water Loop system draws from an underground aquifer, lowering initial installation costs. Naturally temperature-stable underground water (4 -12° C / 39 – 55° F) is drawn from the well to the heat pump, its heat is extracted, and the water is then released into the drainage area or a rejection well with no negative effect on the environment. This system’s high efficiency and lower installation cost makes it a strong option for many clients.
Closed Loop Earth System
The ground absorbs 47% of the sun’s energy each day. The Closed Loop System takes advantage of this, using a series of pipes that are bored vertically 150 to 500 feet in the ground and then grouted and sealed in. Parallel horizontal pipes are then laid in 6ft deep trenches, coupled with vertical pipes if the property has the space. This type of system is very durable and will repay its owners for decades to come.
Surface Water System
Many large complexes are near a pond, lake or ocean, thus creating an available source of energy. The closed system submerges a series of coils down to the water source’s floor. These coils then either reject or extract heat as required. If the water source is nearby, this kind of system can be an inexpensive option.
Boiler/Tower System
Existing boiler/tower systems can be retrofitted for efficiency upgrades, where large geothermal systems are not practical. Hybrid systems include conventional heat rejection or tower/boilers, coupled with GeoExchange loops. The tower/boilers are added to a downsized GeoExchange loop to handle peak seasonal loads.
Business owners who use GeoExchange systems swear by them. Because of the rising costs of operating a business, owners and managers must cut back on expenses to improve their business’s bottom line. No air-conditioning system today can save you more money or provide better comfort than a GeoExchange heat pump. Increasing numbers of schools, institutions, industrial sites and commercial ventures across North America have switched to using GeoExchange heat pumps, and are benefitting from the savings and the low maintenance requirements. The average yearly maintenance costs for a GeoExchange heat pump are approximately 10 cents per square foot. The reason for this low yearly maintenance cost is the fact that geothermal heat pumps are located indoors and have a 10-year warranty, while the ground loops have a 50-year warranty.
This kind of air-conditioning system is so flexible that a building can be heated in one section of it, and cooled in another. The modular design of the system means that if one unit needs repairs, it can be worked on with affecting the rest of the system. GeoExchange technology taps into a renewable resource and runs using a minimal amount of electricity, making these systems the cleanest heating and cooling space-conditioners available today.
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