HVAC Equipment Fault Detection

Properly sized HVAC systems should provide your living area with adequate air at a comfortable temperature and last for many years, but there are many HVAC systems that are poorly operated or maintained by the owner and can contribute to poor indoor air quality and problematic mechanical systems. I am able to thermally scan for problem areas within your HVAC unit. Temperature variations found during an infrared HVAC inspection will indicate even the smallest of problems, subsequently averting any unscheduled down time or excessive damage to your mechanical equipment. The thermal patterns of HVAC motors, pumps, fans, bearings, compressors, heating elements, humidifiers, etc. can be analyzed for overheating, faults, and any decrease in efficiency. Fatigue and stress concentration in HVAC components can be easily detected and verified along with any air conditioner compressor leaks, if equipped.

Another issue I continuously encounter in most HVAC units is the large number of supply and return ducts that are leaking excessive air at the connection seams throughout long runs and at the supply register connections. This is due to improper or shoddy installation of the duct work. According to national surveys, duct leakage in residential systems typically amounts to 20% to 40% of the conditioned air that is suppose to be delivered through the duct work. That's a lot of wasted energy dollars that can be easily corrected, once I locate these breaches.

There are also many vent connector flue leaks that go undetected, which could cause a deadly carbon monoxide build-up. By utilizing my infrared camera while performing your HVAC inspection, I am able to locate the HVAC inefficiencies that can normally go undetected in the course of my standard visual inspection, simply because these hot spots are invisible to the naked eye. I will be able to point out where these defects are actually located and then compile this information into a formal Infrared HVAC Report which will include descriptions of the defect with side-by-side digital and infrared photos. Don't allow your heating and A/C system to become problematic when you need it most. An infrared inspection of your HVAC unit will detect minor issues before they become costly repairs.

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You're unable to visually observe hot spots, but infrared imaging will detect every surface temperature.

furnace hot spot


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HVAC supply duct leaks are pretty obvious with infrared imaging

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A thermal scan of this area reveals a breach at the upper insulation seam.

heat loss detection

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Here's what my clients say about me... (Press F5 on your keyboard for additional testimonials)


Hi Dave,

I was very impressed with you on Monday when we met in Peabody. I have never seen a home inspector spend 4 hours doing the most total inspection you did. And not only doing the inspection but educating your client at the same time.

I am sending you a new client, his name is Norman C. He is a good friend of mine. He is buying a house in Wenham on lake street and asked if I knew a "good" home inspector.

I have seen a lot of home inspectors over the years. The general contractor who couldn't make it on his own and thought that being a home inspector was another way of making money. But, all the while feeding his bad information along with his bad practices. David, your not that guy. I put you in the top 5% of all the home inspectors I've seen in the past 25 years. Well done!


David Carnevale

Owner 1-800-PLUNGER

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