Featured Stories

Power Shift in Congress to Impact HVAC

Gridlock May Continue, Despite Republican Control of 114th Congress

While some industry leaders think the power shift may help loosen the gridlock that has plagued the 113th Congress, others are less optimistic.

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Condensing Furnaces Require Special Care

Sophisticated Systems Require More Comprehensive, Consistent Maintenance

There is no question there are some chilly months ahead, and homeowners will expect their expensive condensing furnaces to operate without fail, even on the coldest days. 

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Market Warms to Bioheat

Biofuel Burns Cleaner, Reduces Emissions

Moving to Bioheat is a painless process, as it can be used in virtually any existing oil furnace without making significant modifications.

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The Professor’s Lesson on HFO, HC Refrigerants

Next-gen Fluids Each Offer Unique Traits, Characteristics

HFO refrigerants are actually unsaturated HFC refrigerants and are widely recognized as the next generation of refrigerants because of their environmental friendliness, cost-effectiveness, and great energy efficiencies.

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Ice Breaker: The Role of the Liquid Receiver

Storage Capacity Equal to 80 Percent of Internal Volume at 90°F Refrigerant Temp

A common accessory used on many refrigeration systems is the liquid receiver, a storage vessel designed to hold excess refrigerant not in circulation.

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For Comfort Systems USA, the ‘V’ in HVAC Stands for Veterans

Comfort Systems USA Finding Success in Employing Military Workers

While a shortage of competent HVAC technicians has plagued the industry for more than a decade, one national contractor has uncovered a very effective way to fill that void.

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Naturals Get New Push at Conferences

Atmosphere America Examines Regulatory Landscape, Cost Concerns

To continue to meet refrigeration needs, f-gas proponents are turning to low-global warming potential (GWP) HFCs and hydrofluoroolefins (HFOs) while advocates of so-called natural solutions — hydrocarbons (HCs), CO2, and ammonia — continue to build their cases.

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The Unified Group Brings Safety into Focus

Group Rebrands Annual Event as Construction Operations and Safety Forum

This year’s forum, held in September in Green Bay, Wisconsin, drew more than 40 members, making it the most attended forum in the event’s half-decade history.

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German Water: How Flow Rate Affects Heat Output

It’s OK to Design a System Outside of a 20°F Delta T

My objective is not to dissuade you from designing around 20° delta T at design load. It’s to assure you the sun will come up tomorrow if you happen to pick a different value.

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European Cooling Industry Prepares for HFO Future

Cuts to HFC Quota Drives Industry Toward Lower-GWP Alternatives

The European cooling industry needs to make plans to move quickly to lower-GWP refrigerants as the cuts in HFC quota envisaged by the F-Gas regulations will bite sooner than many people expect.

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2014 World Energy Engineering Congress

Scenes from the 2014 World Energy Engineering Congress in Washington, D.C.


NEWSMakers: Andy Heinze

Andy Heinze, distribution channel development manager, Sporlan Division of Parker Hannifin, discusses Sporlan's new refrigeration system training center. Posted Dec. 11.

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NEWS 12-15-14 cover

2014 December 15

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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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