White Papers

Featured White Paper

The Advantages of Hydronic Systems versus Variable Refrigerant Flow (VRF) – A Critical Analysis 

This new whitepaper presents a review of technical literature plus post-installation analysis of three types of HVAC systems: Variable Refrigerant Flow (VRF), Hydronics and Hydronics integrated with Armstrong Design Envelope technology. The paper points out the differences between the system types and reveals that cost-savings claims made by VRF manufacturers are not supported by the data. Hydronic systems are less expensive than VRF systems, and Hydronic systems that use Design Envelope technology are far less expensive.


For further information, and to access the white paper, click here

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Feed your technical curiosity with high-level write ups on HVAC and fluid flow engineering challenges. Leading practitioners from Armstrong and around the industry elaborate on current best practices and acquaint you with the pros and cons of existing and future design and operating strategies.

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SLICING ACTION IN CHOPPER PUMPS
Why Slicing is Better Than Harsh Chopping

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Extending Condensing Boiler Durability

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NPSHa vs Temperature

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Leak Testing Kitchen Exhaust Systems: Inspecting for Liquid Tight Requires Water Test

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Electro Water Separation