Purchasing an HVAC unit should not be a task that is taken lightly. The average homeowner will spend $5,000 to $8,000 for an HVAC unit. That is half the amount that the average person will spend on a car purchase. Some people contemplate a purchase of that size for several weeks or months. While most folks take several weeks to contemplate the purchase of a new car, most folks will only contemplate a new HVAC unit for a few minutes. Most of the time, folks aren’t shopping for a new HVAC unit. They have an emergency, and that emergency requires an immediate response. In an emergency situation, time is important. Most people don’t want to spend a minute without heat or cold A/C. The average person makes that decision within 30 minutes. If you can manage without the indoor air comfort, take some time to research what type of HVAC unit is best for your home. You could save up to a thousand dollars, just by shopping around for the best offer. Many companies can install different equipment, so you can get a competitive rate for you preferred system. You can also check with the local electric, to see if any systems qualify for an energy efficiency credit. You can always ask for a second opinion and get additional estimates from other reputable HVAC companies. They usually provide free second quotes at no charge. With several different quotes on hand, you can check different prices and companies. With any major decision or.purchase, some careful thought is a good idea.