How a Highland Park Technician Uses Load Calculations to Size an HVAC System

load calculationsAre you in the market to replace your HVAC system? If so, make sure your HVAC contractor uses load calculations to size it correctly. Never replace your system based on current equipment specifications, as this can result in an erroneously sized system.

Benefits of Performing Accurate Load Calculations

Accurate load calculations result in:

  • Energy efficiency – Your system will run much more efficiently when it isn’t working too hard or continually cycling on and off to meet your home’s thermostat settings.
  • Whole-home comfort – An adequately sized system provides more consistent airflow, which improves whole-home comfort.
  • Humidity – Over- and undersized systems are unable to provide adequate moisture control, which compromises your indoor air quality.

During a whole-house inspection, your HVAC technician will ensure your new heating and cooling system is sized correctly for your Highland Park home, resulting in improved energy efficiency, whole-house comfort and improved indoor air quality. It will also cut down on extra wear and tear that results in unnecessary repair costs.

A Whole-House Inspection

Your HVAC technician will want to perform a thorough inspection of your home and current HVAC equipment. He or she will take note of things like:

  • Your home’s orientation on the lot
  • Square footage
  • Number of rooms
  • Occupancy
  • Window and insulation specifications
  • Air leakage
  • Number of heat generating appliances

The tech will also ask you questions regarding your family’s temperature preferences, as well as what times of day the house is occupied.

Manuals J and D

Prior to the mid-1990s, energy efficiency was not a concern so contractors used “rule of thumb” guidelines to size HVAC equipment. Now, knowledgeable contractors use Manuals J and D, using the information gained during the inspection to provide precise load calculations and to determine whether or not your home would benefit from a more efficient duct design. The technician may also use Manual S, which will use the information provided by Manual J to make specific recommendations regarding the best makes and models for your home’s needs.

Before you install new HVAC equipment, make sure it’s the right size for your Highland Park Home. Contact Carefree Comfort, Inc. Heating & Air Conditioning to get accurate load calculations.

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