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HVAC FAQs

What is modulating heating?

A high-efficiency gas furnace with modulating gas valve and variable-speed blower provides outstanding efficient and economical heating performance. Unlike single-stage gas furnaces that operate 'all ON' or 'all OFF,' a modulating, variable-speed gas furnace minimizes energy use by running at the lowest possible fan speed, and producing just the right amount of heat to keep a steady, comfortable temperature in your home.

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