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    Josh Mitchell

    Josh Mitchell

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    HVAC Technician

    Josh is an experienced HVAC technician and owner of Air Conditioner Lab, an online resource on heating, cooling, and energy efficiency. Josh focuses on enhancing indoor air quality, reducing energy use, and addressing heating and cooling challenges. Through reviews, guides, and tips, Josh and his team provide information on HVAC systems, air purifiers, and other home comfort products.

    Latest articles by Josh Mitchell

    A maximalist seating area with patterned red chairs surrounding a stone coffee table. Yellow drapes cover floor-to-ceiling windows and patio doors behind.

    Your AC could be costing you double if you skipped this simple maintenance task – trust me, I'm a HVAC technician

    Doing it will boost efficiency by 15%

    • A large orange fabric sofa in a warm toned living room, in front of a large window. A large wooden coffee table in front of it.

      I’m an HVAC technician, and this is when I turn on my AC each year – plus 5 checks I always do beforehand

      Save yourself an AC hassle by running my checks and turning it on before big heat hits

      By Josh Mitchell Published 13 April 25

    • 'Stop annoying chills' and save money – draft proofing your living room will slash energy bills by a third

      Create a cozy, energy-efficient living space our expert advice

      By Josh Mitchell Published 23 December 24

    • Why are my AC vents dripping water? Plus, how to solve it efficiently and affordably

      I'm a HVAC pro and there are seven common causes

      By Josh Mitchell Published 9 December 24

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