Geothermal heat pumps are not only the most comfortable way to heat and cool, they’re also the most cost effective. They’re versatile enough to excel in almost any home or environment.
How do Geothermal systems work?
A Geothermal system uses the energy in the earth, to keep you in comfort all year round. Even in the winter, when a blanket of snow covers the ground, the earth's temperature remains approximately 10°C (50°F) at only six feet below the surface. This means that you have a steady supply of heat to keep you in comfort, even in the depths of the coldest winter.
A series of pipes are buried in the ground. An ethanol solution is circulated through the pipes to make them highly efficient conductors of heat. In the winter, the ethanol in the pipes absorbs the heat from the ground and, now warmed up, the fluid is pumped back through the Geothermal unit in the house. In the summer, the heat transfer process takes place in reverse. The fluid in the pipes leaves the house in a warm state, but after circulating underground, is cooled as the pipes exchange heat with the cooler earth.
Underground loops connect to the main Geothermal unit installed in your home, and is connected to your home's forced air (or water radiator) system. Compatible with your home's distribution system.
Forced-air heat pumps deliver the highest efficiency ratings in the industry. Self regulating two stage technology allows the heat pump to operate at the most efficient speed for all weather conditions. The heat pump also controls system air flow to assure high operating efficiency and superior dehumidification.
Water to Water
Water-to-water heat pumps provide high temperature output (140°F), internal controls, and factory-installed options. This type of heat pump includes a special high temperature scroll compressor coupled with heat exchangers designed specifically for water heating, which results in unmatched efficiencies and performance.
Designed for use in heating or cooling applications requiring high efficiency performance, the water-to-water-in-floor heat pump is the perfect selection. Commonly used residential applications that require energy efficient water to water heat transfer, this type of heat pump can be used to pre-heat or cool make-up air or can be installed as a stand-alone boiler / chiller in most hydronic heating applications such as radiant floors and fan coil heating/cooling.
The Distribution System
Heating In Winter
After the pipes have done the heat transfer, and the Geothermal unit has done its work maximizing the heat value of the circulated fluid, the heat is then drawn off the heat exchanger in the unit and circulated throughout the home using the existing distribution system.
Cooling In Summer
In the summer, the process is reversed. The hot air in the house is essentially absorbed by the Geothermal unit which now circulates much cooler pipe fluid. The heat is transferred first to the pipes then to the ground outside before returning, cooled, to the home.
The Geothermal unit is connected to the home's existing heating/cooling distribution system, whether it's gravity or forced air, water-based (typically with radiators) or water-to-water in-floor radiant.
Cleaning the electrostatic filter once a month is all that's needed to keep the system in good running order.
Pumps quietly circulate fluid through the heat exchanger. No combustion or forced-flame noise is heard. An outdoor air conditioning unit, often noisy, is not required.
Geothermal systems eliminate indoor temperature swings and humidity changes that often occur with traditional systems. In addition, the occasional odour caused by combustion of fossil fuel will also be eliminated.
Long System Life
Geothermal units have a life expectancy of at least 20 years.
Geothermal systems use a renewable resource, the earth, which is efficient and non-polluting. Replacing a fossil fuel system with geothermal immediately cuts your household energy emissions by 50%, the equivalent of taking four cars off the road. Federal and provincial governments recognize the important role that Geothermal plays in reducing home energy use, and have created rebate programs to facilitate installation.