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About Damien

Damien McCusker, Manager of Arpi's residential service division, has been working in the HVAC industry for 16 years and has hands-on experience in new home installations, furnace and air conditioner replacements, sales and residential service. He spends most of his spare time being an UBER driver, driving his kids to soccer practice and games.

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thermostats

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Damien McCusker

All HVAC systems use thermostats to control their operation. While some use complicated electronics, chips and programming, they all work off the principle of thermal change. A bimetal thermostat uses a thin strip of brass bolted to an equally thin strip of iron. A gas-bellows thermostat operates on the same principle as a bimetal unit, but gas reacts more quickly to temperature changes.

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Thermostats
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Anonymous

Your HVAC System -- There's More to How It Works Than You ThinkThe HVAC system in your home consists of a combination of systems that all work together to provide optimal comfort levels. It is helpful to know how the various systems work together, especially if you need to figure out what is wrong when the HVAC unit malfunctions.

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HVAC