Geothermal Well Drilling—Demystified Part 2: Installing the Test Well

Geothermal Well Drilling—Demystified Part 2: Installing the Test Well

A well test is prescribed for any vertical geothermal loop field in a commercial-sized application. The well test provides an opportunity to analyze the heat transfer properties of geological formation at the well field site. Once analyzed, this information helps the design engineer….

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Hydronic System Pressure Maintenance with Pre-Piped Components

Hydronic System Pressure Maintenance with Pre-Piped Components

Except for an expansion tank and air separator, the components are often installed as a pre-piped assembly, ensuring long-term peace of mind and eliminating tedious piping work. In this blog post, we explain what these components are and the role each plays….

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How to Build a Centrifugal Pump Curve Part 1: Elements of the Pump Curve

How to Build a Centrifugal Pump Curve Part 1: Elements of the Pump Curve

Understanding centrifugal pump curves is essential for designers and installers of hydronic HVAC and plumbing systems. These handy charts provide a wealth of information about a pump's performance capability and help us...

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Updated Energy Standard Requires Condensing Boilers

Updated Energy Standard Requires Condensing Boilers

The 2019 edition of ASHRAE Standard 90.1 incorporates a change that significantly impacts the design of high-capacity space heating gas boilers. The standard mandates that gas boilers ranging from 1 to 10 million Btu/h) must be…

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