Harster Heating & Air Conditioning

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    The Professionals Choice

    Chosen by HVAC professionals across the country.

    Since 1928, Armstrong Air has been the smart choice for homeowners who expect more from their heating and cooling system. Built with durable materials and incorporating brilliant technology throughout, Armstrong Air is not only the brand to trust with your home comfort, it’s also the brand more dealers would choose for themselves. From gas, oil and electric furnaces to air conditioners, heat pumps, air handlers and indoor air quality equipment, when you trust Armstrong Air, you’re trusting The Professional’s Choice.

    For nearly a century we have been at the forefront of emerging features and quality improvements in the HVAC industry. Every piece of equipment in our lineup is designed to deliver substantial durability, comfort, and energy efficiency, with leading-edge technology and brilliant features throughout.

    We’re committed to continuous improvement, quickly testing and tweaking designs in order to get those ideas from concept through government approval and into our products in less time. You will see this commitment and craftsmanship in every product we sell.

    In fact, the systems we manufacture are the same systems professionals would put in their own homes. So rest assured, when you choose Armstrong Air, you aren’t just making a smart choice, you’re making The Professional’s Choice.

    Comfort Sync Technology Comfort Sync goes degrees beyond basic temperature control. As our most advanced thermostat, it puts all kinds of possibilities at your fingertips. From its user-friendly touchscreen, Comfort Sync lets you control indoor temperatures, access energy-saving features and even get a live weather forecast. Since it connects to your home Wi-Fi network, you can use a smartphone or other web-enabled device to adjust your system from anywhere in the world.

    EHX™ Technology At the heart of every Armstrong Air furnace, you’ll find a marvel of durability and comfort known as an Armstrong Air heat exchanger with EHX Technology. Each one is built to last and built to outperform every previous heat exchanger we’ve ever made. Heat exchangers with EHX Technology are held together via crimping rather than welding, to reduce fatigue from heat strain and improve durability. They are specially shaped to improve airflow, contact and heat transfer for added warmth. Furthermore, they are subjected to extensive torture testing to ensure they’ll outperform your expectations, season after season.


    To learn more, call us today at 314-631-5300 or email us here. We will reply within 24 hours, Monday-Friday.


    For home or business, heating and cooling repair, installation or maintenance.

    Call Harster for a free estimate.


    Send us an email!

      Contact Us

      9900 Gravois Road

      St. Louis, MO 63123

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