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Your Home’s Heat Load and How It Is Calculated


A crucial part of the process of installing a new heating system in a home is determining the home’s heat load. A heat load is the amount of heat per a unit of time that a building (in this case, a private home) needs to maintain a specified temperature (in this case, the residents’ comfort level).

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Finding the accurate heat load requires trained technicians to perform a heat load calculation; this involves collecting a large amount of data about different aspects of the house, many of which you probably haven’t even considered. We’ll examine how heating and cooling professionals assess the heat load of your home so they can recommend the right size and type of heating in New City, NY to make you comfortable.

Call Design Air Inc, where we have load calculation experts who take their work above and beyond customer expectations.

The elements of a heat load calculation

  • House size: Determining the space that the new heater must warm up involves more than basic square footage. The heat load calculation takes into account the volume of the rooms as well.
  • Insulation: How well the insulation in the walls and the attic traps heat is critical to knowing how much heating a house requires. Technicians pay special attention to the attic, since heat rises and escapes speediest through a home’s attic if it lacks sufficient thermal barriers.
  • Heat gain from appliances: Any heat-generating appliance in a home—refrigerator, dishwasher, laundry facilities, computers, televisions—will raise the temperature, as will lights. These will factor into the heat load, usually lowering it.
  • Number of residents: People give off heat as well, and the number of residents inside a house contributes to the heat present.
  • Windows and their placement: Windows bring radiant heat into a home when the sun strikes them. A heat load calculation considers not only the number of windows but also the directions they face so the technicians can tell how much sunlight enters the house.
  • Other areas of heat loss: Aside from checking the insulation, heat load calculations locate spots in a home where heat can escape, such as cracks around outside doors, poorly caulked windows, chimneys with bad dampers, and leaky roofs.
  • Climate conditions: Finally, how much heat a homeowner needs will depend on the typical seasonal temperature lows.

There are even more considerations than these, but this will provide you with an idea of how heat load calculations are carried out. Professionals like our experienced technicians at Design Air Inc can do this job thoroughly and accurately so you’ll end up with the heating in New City, NY that will keep you warm any time of the year.