Brands

• Some name brands are more familiar than others are for furnaces and air conditioning units, such as Trane or Bryant. When comparing, look at how long a company has been in business, its track record in customer service, warranties offered, and repair issues. A website such as ConsumerSearch (see Resources) gives professional and consumer reports on the various heating and cooling systems. Knowing the likes and dislikes of other buyers can help guide you in making an informed decision on your purchase.
  
  

Efficiency

• In choosing a heating and cooling system, buy one that is as energy efficient as possible within your budget. Energy Star (see Resources) can help you compare heating and cooling systems and determine which has the best efficiency in the size that you need for your home. A more efficient system means less energy use and lower heating and cooling costs for you. In the end, this could help pay for the cost of buying the heating and cooling system.
  
  

Costs

• When looking at various models, make note of what they offer to compare them to different models in the same price range. One may be more expensive but provide more energy efficiency, paying for itself sooner. One model may be less expensive but have a higher rate of repair complaints from consumers. While the lowest price may look enticing, knowing what you're getting for that price is key.