Geoexchange systems have lower maintenance requirements and costs than traditional fossil fuel heating and cooling systems.

Conventional heating and cooling system maintenance challenges
  • A conventional air conditioning system has the heat pump outside the building where it is exposed to weather conditions that are often severe and can alternate between snow and ice in the winter, and heat and humidity in summer.
  • The movement of the ground that occurs during changing seasons can put stress on AC refrigeration lines.
  • Air source heat pumps are subject to even more stresses than air conditioning units because they are expected to operate year round.
  • The heat exchangers of fossil fuel furnaces are subjected to temperature extremes when they operate. They will eventually crack from the expansion and contraction of the metal.
Geoexchange heating and cooling advantages

The conditions under which a geoexchange system operates are much less severe.

  • The temperatures of the heat source, the loop field, are lower and more constant compared to the changes in the external air.
  • Heat pumps run relatively cool compared to the flames of a fossil fuel furnace
  • The lower and more constant temperatures of a geoexchange system put less stress on the equipment, resulting in less maintenance.
  • The temperature of the earth around the loop field is relatively constant at 47 degrees. This constant temperature creates very little stress on the pipe, which is virtually maintenance-free.

UMR Routine MaintenanceRoutine Maintenance

The most important routine maintenance is to change the air filters regularly. Geoexchange operates at a lower temperature and higher volume of air. Dirty air filters can increase pressure that reduces performance and gives the system “high blood pressure”.