Find company research, competitor information, contact details & financial data for Virginia Air Heating U0026 Cooling of Gainesville, VA. Get the latest business insights from Dun & Bradstreet. WebTo calculate the estimated HVAC load for a house with 2,500 square feet, 12 windows, and 3 exterior doors occupied by 4 people, simply plug it into this formula: 2,500 x 25 = 62,500 base BTU. 4 people x 400 = 1,600. 12 windows x 1,000 = …
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