Final answer:
The average life expectancy for Gas Furnaces, AC units, Heat Pumps, and Boilers is between 15-20 years for furnaces and boilers, and 10-15 years for AC units and heat pumps. The correct answer to the question is option c) 15-20 years.
Step-by-step explanation:
The average life expectancy of a Gas Furnace, AC, Heat Pump, and Boiler is usually determined by various factors, including the quality of the installation, the brand, and how well the systems are maintained. Generally, these systems are expected to last:
Gas Furnace: 15-20 years
AC (Air Conditioner): 10-15 years
Heat Pump: 10-15 years
Boiler: 15-20 years
The correct answer to the provided multiple-choice question would be option c) 15-20 years, as this range generally covers the average lifespan for the mentioned equipment. Heat pumps and air conditioners have energy savings as a significant advantage when compared to traditional heating methods, which could be due to the COP (Coefficient of Performance) values that range from about 2 to 4.
This indicates an energy savings by a factor of 2 to 4 for heating a house with a heat pump versus direct electrical heating. The interest in heat pump efficiency and lifespan can often be linked to the need for better energy management and cost savings over time.