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According to National Comfort Institute (NCI) studies of properly performing HVAC systems, coil pressure drop shouldn’t exceed 40 percent of the equipment’s rated total external static pressure.

In this very modern marketing age, you are not in the contracting business. You are a marketer of contracting services. The closer you adhere to that definition, the better both parts of your business will get.

Koch Air is the only Koch Enterprises Inc. company serving the HVAC industry and has seven locations serving customers in Illinois, Indiana, Kentucky, and Missouri. Koch Enterprises is a global, diversified, privately owned corporation that has been serving customers for 142 years from its headquarters in Evansville, Indiana. 

While making the decision to replace a condensing unit instead of repairing it may be a difficult one, some contractors have guidelines in place to help homeowners make such a decision a little less difficult.

Dozens of regulations affecting HVACR equipment manufacturers, along with refrigerant regulations and technological innovations in variable-speed technology, have resulted in a bevy of change for condenser unit manufacturers.

This year is already being described as one of the most politically polarizing in American history. And just as voters are expressing very strong opinions at the polls in 2016, HVAC contractors also have strong opinions about whether it’s good business to be involved in politics.

The function of coils in heating and cooling systems is to transfer heat from one medium to another, either extracting heat from a building and expelling it outside or vice versa. Depending on the application, different technologies are available to ensure thermal energy is transferred as efficiently and cost-effectively as possible.

With flat rate pricing, customers know the price of everything before making a purchase, thus eliminating labor and material cost calculations.

One of the main components of any refrigeration or air conditioning system is the condenser. As its name indicates, the condenser condenses refrigerant vapor sent to it from the compressor. However, the condenser also performs other important functions, too. 

Fractional horsepower permanent split capacitor (PSC) fan motors are one of the most popular single-phase motors used in our industry, and then they fail, technicians must be able to troubleshoot and replace them.