|       | What size heat pump (geothermal/ground-source) should be installed to heat and cool a well-insulated, 1500 square foot house? (moderate climate) |  | 1.5-2.0 ton |  | 16% |  | 2.0-2.5 ton |  | 20% |  | 2.5-3.0 ton |  | 25% |  | 3.0-3.5 ton |  | 12% |  | 3.5-4.0 ton |  | 8% |  | 4.0 ton or larger |  | 4% |  | Not sure |  | 12% |  	|  |      |  |  	Question: What size heat pump (geothermal/ground-source) should be installed to heat and cool a well-insulated, 1500 square foot house? (moderate climate)			Top Answer (25% of 24 votes): 		2.5-3.0 ton.			 
   | Answer: 2.0-2.5 tonExplanation: Too many variables to give an accurate size.  Each installation is different depending on an individual heat loss/gain that should be done before actually sizing it.
 |  | Geothermal Sales & Service, Inc. |  | Answer: 1.5-2.0 tonExplanation: Do a eat load then you won't need to guess. Do it right!
 |  | Arizona's Best Heating & AC, Inc. |  | Answer: 2.5-3.0 tonExplanation: There are many factors involved in sizing equipment for a home. You are best to do a load calculatiion on the structure to best match the structures needs.
 |  | Dr Heat & Cool Comfort Experts |  |  |  | ProMatcher |  | Answer: 3.0-3.5 tonExplanation: See previous answer
 |  | Air Services Comfort Solutions LLC |  | Answer: Not sureExplanation: need energy load calculations
 |  | Certified Quality Air Conditioning Inc |  | Answer: 2.5-3.0 tonExplanation: The efficiency gained by the more constant water/ground temperature helps you reduce the capacity
 |  | 123HVAC of Long Island |  |  |  | ProMatcher |  |