The term geothermal actually means Earth/Ground (Geo) Heat (thermal). Geothermal, or ground source warmth pumps, take advantage of the fixed ground or groundwater temperatures to situation your home.
A refrigerant loop with a compressor extracts heat from one side (the ground) and pumps it to the heating loop in your home. It’s essentially the same process that happens in your refrigerator: warmth is extracted via a compressor and refrigerant loop from the inside pompa de caldura of your fridge/freezer and rejected into your house.
In the summer, the geothermal heat pump reverses its cycle. While in an air-conditioning mode, warmth from the house is rejected into the ground or ground water.
What makes these methods such a good selection for residential heating and cooling is that they do not rely on outside air temperatures. They are going to preserve your own home consolationable as effectively on a windy, zero-degree winter day as on a 40-degree day. Provided of course, that your house is well insulated and tight.
Geothermal warmth pumps are additionally a really efficient and a nicely-designed system will use 25-50% less energy than standard heating and cooling methods (Source: US DOE).
Water-to-Water Geothermal Warmth Pumps
These types of programs are generally used for heating only. They’re installed instead of a traditional fuel or oil furnace to maintain your property warm and provide domestic sizzling water.
It is very important know that heat pumps work most efficiently when the temperature difference between the warm supply (ground) and the warmth sink is small.
Ground temperatures range wherever from 50 to 75 degF, depending on where you live. This implies that geothermal heat pumps are usually not suitable for standard hot water baseboard functions, which are designed for water temperatures of one hundred eighty degF. Ground heat and low-temperature radiators require water temperatures within the range of ninety five to 140 degF.
Some newer fashions are now equipped with so-called desuperheaters that can transfer extra rejected energy from the compressor to heat domestic water for your bathtub, shower and sinks.
Water-To-Air Geothermal Heat Pumps
These types of ground source heat pumps are generally used while you want air conditioning. The ground “water” is the warmth sink, the place you reject the warmth from the house while in air con mode. While in heating mode, energy is extracted from the ground water and “pumped” into the “air” by the compressor. The “air” is distributed via your house through duct work.
Otherwise, they operate the identical method as water-to-water heat pumps. And once more, the effectivity of a geothermal heating and cooling system is much better than that of a traditional system.
Essential To Know
The first step towards making a geothermal heat pump system be a reliable and efficient heating (and cooling) system on your house is to minimize the heating and cooling necessities with a nicely-insulated building envelope and strategically positioned windows for passive solar gain.
Not only is your first price reduced, because your system will likely be smaller. Additionally, you will tremendously increase the consolation of your home.
These highly environment friendly and reliable techniques are best designed and installed by professionals. It’s not advisable to make this a DIY project. These programs must meet particular requirements. Especially the piping specified by the ground, or right down to the ground water table, should be designed and installed appropriately to make sure that your geothermal heat pump system works as intended.