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Mr. HVACMr. HVAC
  • Home
  • Free Stuff
    • Free Flat Rate Pricing Software
    • HVAC Load Calculator Free
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Calculating Gross Profit Margin

Oct 26, 2011

How do I calculate gross profit margin? We are often asked how to calculate gross profit margin (gross profit expressed...

Labor and Parts Break-Even Price Calculator

Mar 30, 2011

How Much Do You Need to Charge for Labor, Parts, and Materials? This pricing calculator will determine your breakeven point on parts,...

Metric Conversion Calculators

Mar 26, 2010

Free Standard to Metric Conversion Calculators by Mr. HVAC. Length Conversion Calculator Millimeters Inches Meter Feet Yards      ...

Conversion Factors and Formulas

Mar 26, 2010

From To Multiply by Acres Hectares .4047 Acres Square Feet 43,560 Acres Square Miles .001562 Atmospheres Cms. Of Mercury 76...

Common Formulas

Mar 26, 2010

Circumference Circle: C = Πd, in which Π is 3.1416 and d the diameter.   Area Triangle: A = (ab)/2...

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About Me

Some know me as Mr. HVAC. I’m an entrepreneur, business owner, public speaker, expert witness, husband, and father. I used to work in the HVAC industry and now have a passion for helping business owners in the contracting world grow their businesses. I’m the President of Aptora Corporation, which manages the growing portfolio of accounting software, field service management software, flat rate pricing software systems, and other related products and services.

About Mr. HVAC

  • James R. Leichter
  • Mr. HVAC Corporation
  • 8877 Bourgade St, Lenexa, KS 66219
  • sales@mrhvac.com
  • www.mrhvac.com

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