HVAC Cost Calculation Question
Hello everyone. I hope this is a simple question. As I study for the exam I'm anticipating I'll have to do energy cost estimating for HVAC systems.
If I am asked to calculate the energy costs of an HVAC system for a particular building do I simply multiply the costs by the square footage of the building AND the number of floors, or just simply the square footage.
So for example if an HVAC unit has an annual cost of $100 per sq ft. for a 5000sqt, 4 story building, Would the annual costs be $100 x 5000sqt x 4 or just $100 x 5000.
My study material isn't really clear on this.
Thank you!

Hello Austin,
This is just something that comes out of my mind when I see your question. If you are given 5,000 sq.ft. building you should probably assume its the building Sq footage and use it to calculate the energy cost. But if you are given 5,000 sq. ft. per floor you should multiply the number of floors to the Sqft number. I am not sure if this is what you are asking hope someone else could explain much better.

I would also add that if a question did say 5,000 sf, 4 story building  I’d be thinking okay great the building is 5,000 sf I don’t care how many floors it is. The 4 story part would be a distraction. Now of course if it said 4 story building 5,000 sf per floor then I’d tackle the questions as a 20,000 sf building.
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