Featured Stories

Don’t Overlook the Trees

Modern Approaches to Wood-fired Hydronic Heating

Long before Americans had access to natural gas, propane, fuel oil, or electricity, and long before there were automatically controlled central heating systems, wood was the most commonly used heating fuel.


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Preparing for a Future Without R-22

Production, Importation of the Hydrochlorofluorocarbon to Cease in 2020

Proactive HVAC contractors have been working to educate their employees and clients on the inevitable phaseout. And, with the price of R-22 already starting to rise in many areas, educated contractors are finding it easier to convince customers to replace aging R-22 units with newer, more efficient models.


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Industry Prepares for New Residential Water Heater Standards

Manufacturers, Organizations Invest in Training to Prepare Supply Chain for Changes

While the new efficiency standards do not require manufacturers to use any specific technologies to achieve the new EF (energy factor) ratings, they’ve already necessitated a significant redesign effort from manufacturers. Additionally, the increasing unit sizes pose transportation and installation challenges that have yet to be fully understood.


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Ice Breaker: Correct Liquid Line Sizing

Accurate Assessment Vital for Proper Refrigeration System

Choosing the correct line size is very important to the overall success of the installation. Incorrectly sized refrigerant lines can lead to system problems, excessive energy consumption, and higher installation and operation costs.


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Geothermal System Nears Fourth Decade of Performance

After 37 Years, Miami Homeowner’s Geothermal Heat Pump Still Going Strong

Thirty-seven years and one addition to the house later and McDermott is proud to claim that his geothermal system — including the original ClimateMaster heat pump unit from Friedrich (eventually assumed into LSB Industries subsidiary ClimateMaster Inc.) — is still working perfectly.


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2015 ACCA Conference

Images from the 2015 ACCA Conference in Grapevine, Texas. Posted on April 8, 2015.

Podcasts

NEWSMakers: Clint Schreck

Clint Schreck, general manager, Columbus Worthington Air, Columbus, Ohio, discusses winning Angie’s List Super Service Award, how to handle online reviews, and much more.

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ACHRNEWS

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2015 May 18

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Legislation and Regulation

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2015 National Plumbing & HVAC Estimator

Every plumbing and HVAC estimator can use the cost estimates in this practical manual!

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