Load calculations are used by HVAC contractors to assess a home’s heat loss and heat gain. By looking at variables that affect indoor comfort, your contractor can precisely determine the heating and cooling load of your Casa Adobes, AZ home.

Are Load Calculations Important?

With data collected during the load calculation, your HVAC contractor can perform an HVAC installation that’s correctly sized for your home. A right-sized system will deliver maximum energy efficiency and overall indoor comfort. Some contractors simply replace an old HVAC unit with a new unit that’s the same size as the old one. However, buildings change over time. Any changes in the building will affect the size of the load.

Variables Measured in a Load Calculation

  • Size, number and placement of windows
  • The direction your home faces
  • Insulation levels
  • Heat-generating appliances
  • Room and perimeter measurements
  • Number of occupants
  • Building materials
  • Number and composition of exterior doors
  • Type of roof
  • Condition, location and R-value of ductwork

Consequences of Improperly Sized HVAC Installations

A system that’s too large or too small negates the benefits of a new HVAC installation. Undersized and oversized units increase utility bills, experience excessive wear and tear, require more repairs and have shorter lifespans.

  • Undersized systems may cost less, but they lack the power to completely condition your home. They will always be running at peak capacity while trying to catch up with the thermostat setting.
  • Oversized systems run for brief periods of time and then turn off. They don’t run long enough to completely heat, cool or dehumidify your home.

At MVP Heating & Air Conditioning, we’re committed to proper HVAC sizing. Call us today to learn more.

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