Mold can't be avoided, but it is possible to minimize the potential for growth in air systems. Mold is a common allergen; it exacerbates asthma, and can cause infectious disease in some people, which is why protecting ductwork is so important.
Many HVAC contractors are looking for ways to expand and grow. So it makes sense to consider a service that has good, long-term potential, complements existing services, and offers good profitability. Air duct cleaning is a natural partner or extension of HVAC system installation and servicing.
Positive Temperature Coefficient Resistors (PTCRs) are variable resistors that vary their resistance when their surrounding temperature changes. Because they have a positive temperature coefficient, as their temperature increases so does their resistance. Also, as their temperature decreases, so does their resistance.
While troubleshooting small-capacity refrigeration systems, a technician should not be too quick to attach refrigerant gauges to a system. Small systems normally hold relatively small amounts of refrigerant. The process of attaching and removing a set of refrigeration gauges will release a small amount of refrigerant from the system.
"The Building Management System (BMS) is the brains of every modern building," said Roy H. Feinzig, P.E. "Like people, some are much smarter than others." Feinzig was speaking at the National Conference on Building Commissioning (NCBC) meeting on "Controls Commissioning: When Good Isn't Good Enough."
While nearly half of adults surveyed in hurricane states expect to lose power for 24 hours or more in the next six months, just one in four surveyed (26 percent) - and just 20 percent nationally - said they own a generator.
Doug Brantley has been a member of the Tennessee Army National Guard for 23 years. During that time, he married his wife, Kim; fathered a son; purchased Brantley Heating and Air Conditioning; and, most recently, spent a year serving with the Guard in Iraq.
Dealer groups are offering training, tools, partnerships, and communication avenues for the purpose of helping their respective members in transitioning the consumer to the higher SEER market.
Ruth King believes it's easier for women to join the HVACR ranks today because women are, as she put it, "more accepted" in nontraditional roles in this day and age. That said, this does not mean that females are coming out in droves to join the respective contractor, wholesale/distribution, and/or manufacturer sector of the HVACR industry.
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