An energy audit tool that more accurately pinpoints potential energy savings while potentially costing 35 percent to 75 percent less than traditional audits is set to hit the multi-billion-dollar energy retrofit industry next year.
Savvy HVAC contractors are discovering that bartering is a great vehicle for using downtime, moving excess inventory, attracting new customers, and generating barter dollars that can be used for advertising and other business expenses.
Housing markets in 54 out of the approximately 350 metro areas nationwide returned to or exceeded their last normal levels of economic and housing activity, according to the latest National Association of Home Builders/First American Leading Markets Index (LMI).
The season was getting colder and heating calls were beginning to come in. Bob and Tim were riding to a large residence that had three heat pumps to provide heating and cooling for the structure and Tim asked a question, “Why are heat pumps so popular?”
For engineers, designers, and contractors, determining the right HVAC system for their commercial and industrial building projects is critically important. An air curtain may be a small part of a building’s HVAC package, but it can help turn a good building design into a great building design.
If companies with federal contracts or subcontracts are found to be non-compliant in regard to equal employment and affirmative action, they can face mandatory changes in their employment policies as well as bad publicity.
One of the challenges of relying on renewable energy, such as solar and wind, is that changes in weather conditions can lead to sudden drops in the amount of power provided. One way utilities can handle this is by “shedding,” or reducing, some of their electrical load.
Our troubleshooting problem involves a split system heat pump in which the outdoor unit is operating in an 85°F ambient, and when you arrive in response to the customer’s no cooling complaint, you find the indoor fan operating normally, and you also note that 240 volts is read at L1 and L2 of the outdoor unit.
For the retrofit of a boiler system installed in the 1960s, the contractor selected Aquatherm Blue Pipe® polypropylene-random (PP-R) piping for the job because of its flexibility and material and labor cost savings.