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The homerun system is a simple technique for connecting multiple heat emitters using two runs of small flexible tubing (such as PEX) for supply and return. In North America, the standard size is 1/2-inch, but 3/8-inch tubing can be used with proper design and compatible fittings.

Driven by advancements in refrigerants, controls and system design, modern heat pumps are taking on applications once thought beyond their reach — from food service and healthcare to district energy and industrial processes. This evolution is creating new opportunities for engineers, facility owners and contractors to rethink how buildings are heated, cooled and powered.

The technology itself isn’t new — cured-in-place pipe (CIPP) methods have been around for decades — but the conversation around it is changing fast. With infrastructure spending increasing and municipalities under pressure to minimize disruption, contractors who can confidently sell and explain trenchless rehabilitation are in a position to win more business than ever before.

St. Charles Community College’s new Regional Workforce Innovation Center in Wentzville, Missouri, integrates hands-on education with sustainable design.The 48,000-square-foot facility, designed with JEMA and built by River City Construction, is targeting LEED Gold certification.

Many people still hesitate when they hear the phrase “tankless water heater.” The myths run deep: they won’t work in cold climates, they’re too expensive, they can’t keep up with demand. These misconceptions are fueled by early limitations in the technology and years of hearsay passed along between homeowners – and even some tradespeople.

Many of the ratios used in the HVAC industry are just some “desirable output” quantity divided by the “necessary input” quantity. One example is the coefficient of performance (COP) of a heat pump. The desirable output quantity is Btu/hr of heat output. The necessary input quantity is the electrical input power needed to operate the heat pump. The latter is typically measured in watts or kilowatts.

The most efficient grinder pump requires no maintenance, manages solids without clogging, and supports various wastewater systems by preventing settling and handling modern “flushable” products.

Water chemistry significantly affects boilers, with scale buildup as small as one-sixteenth of an inch causing a 20 percent loss in heating efficiency and leading to corrosion, leaks, and potential boiler failure. Analyzing water chemistry beforehand is crucial for identifying necessary solutions and ensuring long-term performance.

In 2016, Natural Resources Canada ("NRCan") released Amendment 18 to the Energy Efficiency Regulations, enhancing energy efficiency and water conservation. It introduces new product categories, updates existing requirements, and allows automatic adoption of future U.S. Department of Energy updates.

Women make up only 2-3% of the plumbing workforce and 8% of plumbing apprentices. In construction trades, they hold 3.9% of roles like plumber or pipefitter, a 32% increase since 2016, totaling over 314,000 tradeswomen, according to the Institute of Women’s Policy Research.