Service & Maintenance

The Economizer, In A Nutshell

May 1, 2004
The function of the economizer is, as its name implies, to "economize" or save on cooling costs. Learn more about the operation of economizers and get maintenance tips here.
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Btu Buddy 13: A Lunch Seminar With Bob And Btu Buddy

April 17, 2004
In this installment of the Btu Buddy series, Bob and Btu Buddy meet at the local diner for lunch and discuss electric heat and the components that operate it.
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Preseason Air Conditioning Service

March 31, 2004
With the heating season winding down and the cooling season soon upon us, it is time to reconsider what is involved in proper cooling system maintenance.
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Btu Buddy 12: Tackling Low Airflow With Electric Heat

March 19, 2004
In this edition of the Btu Buddy series, Bob gets a call from the dispatcher about an office that has electric heat. It is very cold outside and one of the office zones is not heating as it should.
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A Review For Safety's Sake

March 5, 2004
For some of you, this article will be a review to refresh your memory about the importance of "safety first." For those of you starting out as technicians, it could keep you from serious injury - or worse - out in the field.
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Btu Buddy 11: Handling An Over-Fired Boiler

February 21, 2004
In this installment of the series, Bob is called to do a tuneup on an oil boiler. When he starts it up, he finds too much heat is going up the flue. Btu Buddy helps him in narrowing down a solution.
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Is Avoiding A Callback Worth 10 Minutes Of Your Time?

February 7, 2004
Spending as little as 10 minutes discussing proper humidifier operation and troubleshooting tips with the homeowner at the time of installation could eliminate future callbacks.
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Btu Buddy 10: Working With A Gas Furnace That Is Down Drafting

January 23, 2004
In this edition of the Btu Buddy series, Bob encounters a furnace that is not drafting like it should. Btu Buddy helps him determine the problem and make recommendations to the homeowner.
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Fossil Fuel Heating Equipment: Principles And Troubleshooting

January 11, 2004
This application note was written to provide you with an understanding of the basic principles of fossil fuel heating systems and how to troubleshoot these systems using thermometers, digital multimeters, pressure/vacuum modules, and other accessories.
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Pulling A Good Vacuum Equals $$$ For The Contractor

December 29, 2003
Pulling a good vacuum before charging a new system with refrigerant or after a repair is essential for the proper operation of an air conditioning system. In addition to the vacuum pump, a micron gauge is an essential tool.
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2014 ACI Home Performance Conference

The 2014 ACI National Home Performance Conference & Trade Show was held in Detroit.


NEWSMakers: Doug Dougherty

Doug Dougherty, president and CEO of the Geothermal Exchange Organization (GEO) joins the program to discuss the latest happenings with GEO, including the drive to get included in state and federal definitions of renewable energy, plus the future of geothermal.  Posted on July 25.

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2014 July 21

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Some in the industry are calling for the EPA to halt production of R-22 as of 2015. What do you think?
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2014 National Plumbing & HVAC Estimator

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

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