Things to know about geothermal heating and cooling systems
A geothermal heating and cooling system is a method of heating and cooling a home that has grown in popularity in the past decade. It utilizes the consistent temperature of the ground that is found at levels of twenty to twenty-five feet, where it is unaffected by the environment. It carries and transfers the heat from the ground into the home during the colder months and moves the heat from the home back to the ground during the warmer months.
There is a variety of systems to choose from, and the existing ground conditions and/or local ordinances can dictate which approach is best. In a closed loop system, a solution is circulated through underground tubing that leads into the home. A heat exchanger in the home transfers the heat in from the ground during the winter and out to the ground during the summer. There are some systems that can accomplish the transfer of heat without an exchanger, but the circumstances have to be ideal and many areas prohibit the use of these systems.
The tubing can be installed in the ground in a variety of conformations. For example, one option involves a system of spiraled tubes buried horizontal to the ground surface, while another system utilizes deep vertically arranged loops. Sometimes, a nearby body of water can provide a location for the tubing, but specific requirements must be met, like water depth, for this approach to be feasible.
An open loop system follows the same principle of transferring heat in and out of the home, but instead of a system that carries a solution, the tubing actually utilizes a consistent supply of water underground. The water is carried into the home, either leaves heat behind or takes it away, and returns to the ground once used.
Undeniably, a geothermal system such as this carries a higher cost than other systems, but the benefits far outweigh the cost. It is a quieter system that will last longer while requiring less maintenance. Furthermore, it is an efficient method, and the savings from this efficiency will allow the homeowner to pay for the system, usually in less than ten years.
Geothermal heat pumps are the most energy & cost-efficient heating and cooling systems. Looking to upgrade your Columbus home? Call us at (614) 252-9400 and schedule a service call today!