Geothermal Heating and Cooling

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Geothermal Heating and Cooling

• Home Energy Inc.
• Monte Jefferson

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What Geothermal Is Not
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Will geothermal work anywhere

• Yes, if there is dirt, rock, sand,clay,glacial
  till or dirt
• Exception- Glaciers, land fills or lots filled
  with something other than dirt

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Ground temperature map
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Know your acronyms

• Cooling efficiency
• SEER seasonal energy efficiency rating
• EER energy efficiency rating
• Heating efficiency
• COP Coefficient of Performance

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Understanding Geothermal

• How refrigerant gas works
• Duty Cycle vs. Temperature Glide
• Dehumidification and coil temperature
• Balance Point
• Manual J vs Manual D vs room by room CFM in high
  performance homes

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Types of Geothermal Installation Practices

• Water Source
• Open Loop
• Injection Well
• Closed Loop
• Direct Exchange (DX)

3-4 gal. per min. 50 duty cycle 1800 gal per day
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Geothermal Drilling

• Compressed Air
• Mud Rotary
• Direct Push
• Sonic

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System v Application

• Loop Material
• Depth of Loop
• Bore Size
• Type of Refrigerant

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DX
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Water Source
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Geothermal capabilities and the Hybrid system

• Heat and Cool air
• Heat Pump/air handler/refrigerant coil
• Heat and Cool air and heat Water
• Domestic and In floor radiant
• In slab thin slab under wood floor
• Heat and Chill Water
• Domestic and In floor radiant/water coil
• Solar thermal/Geothermal Hybrid
• Heat Swimming pools

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Only way to use solar after dark?
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• Any Questions ??

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