Common HVAC Installation Mistakes and How They Cost You

Common HVAC Installation Mistakes and How They Cost You

Common HVAC Installation Mistakes and How They Cost YouChoosing new a new HVAC system could be one of the most complicated purchases you make as a homeowner. While it’s important to pick the best one for your home, the quality of the HVAC installation is just as important as the equipment you choose.

Before selecting a contractor, be sure the company will:

Size it carefully.

A reputable HVAC contractor will complete a detailed load calculation using Manual J software. It requires inputs about the specifics of your home’s energy efficiency and your preferred temperatures, family size, and how many heat-producing appliances you use.

Skipping this step will lower the energy efficiency, system longevity and comfort the new system promises. When systems are too large, they run in short cycles. They have too much capacity to reach their optimal running speeds and will heat or cool your home before reaching their ideal efficiency.

Instead, they start and stop more frequently. HVAC systems use the most electricity when they first start, which also stresses all the electrical parts. Avoiding the short cycle by right-sizing the system avoids higher energy costs and premature system failures.

Thoroughly inspect the ductwork.

A quality HVAC installation requires a complete ductwork inspection to verify it’s the right size and has few, if any, leaks. Installing a system that doesn’t match the ductwork could create noise when the equipment runs, poor distribution of conditioned air, and higher energy costs.

Exhaust the system safely.

All combustion furnaces create exhaust gases that need to vent through the wall or roof. The installer should use a new vent flue and test it to verify all the exhaust products vent outdoors.

Drain it.

If the HVAC system includes the air conditioning, it will need to drain outdoors or into your home’s plumbing. Any leaks can cause serious damage to your home. High efficiency condensing furnaces also need leak-free drains, while standard efficiency furnaces do not.


To get the most from your new equipment, insist on a quality HVAC installation. To learn more, contact Powers Heating & Air, providing trusted HVAC services for Peachtree City homeowners.


Our goal is to help educate our customers in Peachtree City, Georgia and surrounding areas about energy and home comfort issues (specific to HVAC systems). For more information about other HVAC topics, download our free Home Comfort Guide or call us at 770-487-2040. 

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