An open-circuit geothermal installation normally requires a geothermal heat pump unit, a solenoid valve, a transformer, and a pump that pumps water through the system. Yes, geothermal heat pumps can work well and work well in cold winter climates. While people may experience seasonal changes above ground, land below the freezing line is not affected at 50 degrees. So how do you decide between a heat pump or a geothermal system? The main considerations are the cost of execution and the cost of installation.
Both heat pumps and geothermal systems cost the same amount on average. A geothermal system is 25 to 50% cheaper to operate than an air heat pump. Some geothermal heat pumps can be connected to an existing air controller, other units come with their own integral air controller. Homes with hot water heating can also use geothermal systems, although additional radiators may be needed because these systems do not reach the higher temperatures of fuel-powered boilers.
That's not a problem for underfloor heating, which operates at lower temperatures. Geothermal heating can get as hot as room temperature, which is about 23°C (75°F), according to the United States Office of Energy Efficiency (%26 Renewable Energy). Dual-source heat pumps have higher efficiency rates than air source units, but they are not as efficient as geothermal units. The heat pump circulates a heat-carrying fluid, sometimes water, through pipes to move heat from one point to another.
Geothermal systems, on the other hand, transfer heat through long loops of liquid-filled pipes buried in the ground. However, a ground-based heat pump is more energy efficient and lasts longer than an air-source heat pump or HVAC system. In addition to the obvious advantages of reducing the carbon footprint, geothermal heat pumps have resiliency benefits. He said that the vertical geothermal heat pump is the most common system because it uses the least amount of land for installation.
A heat pump and air conditioning system are also superior to central air because they can heat and cool the air. If you're building a new home or considering replacing a heating system that burns oil or gas, the cost of an air-source or land-based heat pump could be competitive. Many utility companies offer discounts because geothermal heat pumps reduce network load at times of peak demand. There are different sizes of heat pumps and there are a few ways to determine the size of the heat pump you need.
The different sizes of heat pumps are distinguished by the amount of heat and cooling they can perform, measured in BTUs (British thermal units). However, geothermal heat pump systems are manufactured to strict consumer and construction standards, making them very reliable. Here's a quick chart that summarizes the main differences between a geothermal system and a heat pump.