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HVAC Engineering News


Compass Circulators: The Universal Transition to Variable-Speed
Armstrong’s Compass R and Compass H circulators deliver variable-speed efficiency, universal compatibility, and energy savings up to 70% over fixed-speed pumps. Discover how Design Envelope technology is modernizing hydronic systems.
May 21, 20253 min read


Why Proper Humidity Levels Matter for Your Health, Home, and Pets
Maintaining indoor humidity between 30–50% improves respiratory health, protects your home, reduces allergens, and prevents mold growth. Learn why proper humidity control matters year-round.
Mar 19, 20253 min read


Armstrong Astro 2 Circulators: Armstrong’s Efficient Design
The Armstrong Astro 2 circulator delivers quiet, maintenance-free hydronic performance with a flexible three-speed wet-rotor design for heating and cooling systems.
Mar 13, 20252 min read
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