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What Size Boiler is Appropriate for My Business?

Checking a Boiler

Here's how a HVAC commercial service provider calculates the required boiler size.

Are you thinking of investing in a new boiler for your commercial property? If you have noticed an increase in boiler service calls or a decrease in your boiler's performance, then it might be a good idea to have a new one installed. If your current boiler is several years old, you will be pleasantly surprised by how efficient today's new models are. So how do you determine what size boiler is appropriate for your business?

Determining the correct size boiler for your commercial building requires some simple math. The first thing you need to know is the square footage of the building. Practically all home and commercial property owners know this number, but in case you don't, here is a simple step-by-step method of calculating square footage:

  1. Starting in one room, measure the two adjacent walls in inches, and multiply the two lengths. This gives you the room's area in square inches. Repeat this for every room in the building.
  2. Add the area of all the rooms together; this is the area of the entire building in square inches.
  3. Divide that number by 144, which is the number of square inches in a square foot. The end number is the square footage of your building.

A good rule of thumb is that your boiler should produce around 50 British thermal units (BTUs) of heat for each square foot. For example, if your commercial building has 10,000 square feet of space, you will need a boiler that produces 500,000 BTUs. However, other factors such as the local climate and the building's insulation may affect your requirements as well. That's why it's always a good idea to have a professional HVAC commercial service provider assess your needs and install the appropriate boiler for your building.

Brummitt Heating and Cooling has been installing Carrier boilers at commercial properties for over 20 years. If you are in need of a new boiler, contact our commercial services department by calling us at (919) 693-5536.