Tag Archives: manual j

An Introduction to Manuals J, D, and S

An Introduction to Manuals J, D, and S

Chances are, you’ve never heard of Manual J, Manual D, or Manual S because they’re the unsung heroes in the HVAC industry. These manuals are an essential computer software that HVAC

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New HVAC System Design: Insist on Right Sizing

The most important aspect of replacing an HVAC system depends on sizing it right, which is why this should be the first step in the process. Any contractor installing a

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Red Flags That Should Send You Running from These HVAC Contractors

Finding the right HVAC contractor for your home can be a challenge. Not only will the contractor be working on or installing equipment that’s essential for home comfort, you’ll be

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Size Your Home’s Cooling Load Before Installing A New Heat Pump

Winter in Florida is one of the best times to determine your cooling load for the upcoming cooling season because you have a few months to lower the load before

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Manual J: Why Your Contractor Should Know It Through And Through

Nothing affects your HVAC system’s performance like its size. Decades ago, the Air Conditioner Contractors of America developed a way to standardize the sizing process, for both the HVAC unit

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  • About Phil Jr. and Christine

    Phil Jr. and Christine Phil Jr. decided long ago to follow in his father’s footsteps working in the family business since he was a young teenager and Christine started working for NisAir in 1983 while still in high school. After graduation she continued to work at the business while attending the local community college for her career development... More »