Heating and Cooling with a Heat Pump

Contents Introduction
What is a Heat Pump and How Does it Work?
Coming to Terms with Heat Pumps
Air-Source Heat Pumps
	How Does an Air-Source Heat Pump Work?
	Parts of the System
	Energy Efficiency Considerations
	Other Selection Considerations
	Sizing Considerations
	Installation Considerations
	Operation Considerations
	Major Benefits of Air-Source Heat Pumps
	Maintenance
	Operating Costs
	Life Expectancy and Warranties
Ground-Source Heat Pumps (Earth-Energy Systems)
	How Does an Earth-Energy System Work?
	Parts of the System
	Energy Efficiency Considerations
	Sizing Considerations
	Design Considerations
	Installation Considerations
	Major Benefits of Earth-Energy Systems
	Maintenance
	Operating Costs
	Life Expectancy and Warranties
Heating Energy Cost Comparison: Heat Pump and Electric Heating Systems
	Factors Affecting Heating Cost Comparisons
	Comparison Results
Related Equipment
	Upgrading the Electrical Service
	Supplementary Heating Systems
	Conventional Thermostats
	Electronic Thermostats
	Heat Distribution Systems
Answers to Some Commonly Asked Questions
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Contents