Selecting
What to look for in geothermal equipment, including heat pumps, loop pumps, loop fluids and piping. Heat Pumps Water-to-air and water-to-water heat pumps are available in a number of capacities and configurations. Loop Pumps The circulating loop pump in a geothermal system should provide a flow of fluid through the loop adequate enough to maintain good heat transfer during both cooling and heating modes. Loop Fluids Options for loop fluids include water, glycols and alcohols. Piping Polyethylene is the most common piping material used in geothermal heat exchangers.
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