HVAC Contracting

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Gas appliances are divided into four venting categories based on vent operating pressure and whether they are condensing or non-condensing. Category I is negative pressure, non-condensing. Category II is negative pressure, condensing. Category III is positive pressure, non-condensing. Category IV is positive pressure, condensing.

When employees curse excessively in the workplace, or even a little bit, some companies may want to use their own “f-word” — as in “firing.” Others may barely notice, and some may not want to deal with it. Yet employers need to carefully consider their responses to profane and obscene language in the workplace. 

Industry sources in the United Kingdom have raised concern over so-called “easy install” air conditioning units containing HFCs, which are being marketed at non-refrigeration engineers, despite F-gas concerns.

Echo Barrier USA announced that it solved a critical noise challenge for Aggreko, a leader in temporary power and temperature control. The firm’s acoustic barriers mitigated excessive noise coming from an Aggreko air conditioning unit that threatened the success of an event with the president of the United States.

In this troubleshooting situation you’ve been called to a restaurant to check an ice machine that, according to the customer, “isn’t working like it should.” You find that you’re dealing with a 240-volt, single-phase machine that has a remote condenser, and it also employs a small air compressor to provide air to assist in freeing the cubes.

One thing is certain in small- to mid-sized businesses today: the need for sales force automation is top of mind. Too many small- to mid-sized companies — HVAC contractors, specifically — are facing the challenge of implementing streamlined, sales-friendly software to aid customer relationships.

In Part 1 of this series, I discussed some outside-of-the-box marketing techniques that I have tried with my HVAC business that have proven to be successful. The bottom line is that, whatever marketing techniques you try, you will only find success if you measure these efforts and determine if they are truly helping your business.

Frigesco has been awarded new UK Department of Energy & Climate Change (DECC) funding of £102,000 to develop a flash defrost system for use in air-source heat pumps (ASHPs). Flash defrost can reduce supermarket cooling energy costs by up to 20 percent. Field trials in working supermarkets are currently underway.

The National Park Service (NPS) has awarded Siemens a $29 million contract to implement energy and water conservation measures at 13 national parks in the Washington, District of Columbia, metropolitan area.

Bob and Tim were doing a routine seasonal service call on a high-efficiency furnace. Tim asked, “Why were the older furnaces so inefficient compared to the more modern furnaces?”