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HVAC Rule of Thumb Calculator

HVAC Rule of Thumb Calculator

Quickly size HVAC systems

With a 100% Money Back Guarantee

The HVAC Rule of Thumb Calculator quickly determines the sizes of any one of the possible systems (1) DX System, (2) Air Cooled Chilled Water System (3) Water Cooled Chilled Water System and (4) Heating System. Simply answer a few questions on your design building and the calculator will produce a report that will identify a range of mechanical (tons, BTUH, GPM, CFM, ft. head) and electrical (kW/HP)sizes of each major piece of equipment like fans, pumps, air handling units, fan coils, chillers, condensers and cooling towers.

Hawaii general excise tax is not included in the cost below and will be added to the final cost.

$10.00 + HI GET (4.712%)
BUY NOW

PRODUCT DETAILS

  • Series: Design Tools
  • Title: HVAC Rule of Thumb Calculator
  • Author: Justin Kauwale, P.E.
  • Units: English (SI Coming Soon)
  • Language: English
  • Format: Excel
  • Publisher: Engineering Pro Guides
  • Last Updated February 12, 2018

ABOUT THE AUTHOR

Justin Kauwale PE, LEED AP is a professional engineer that is registered in both Mechanical and Fire Protection Engineering. He has over 11 years of experience in practicing and teaching engineering to practicing engineers. He is the owner of this website and the creator of this content. If you have any questions, please contact him at contact@engproguides.com or see the about page for more.

100% Money Back Guarantee

This product is yours to use risk-free to you. If you are not completely satisfied with your improved efficiency after two weeks of use, then simply email me a note about experience within two months of the original purchase date for a complete refund of your purchase price , no questions asked.

More Information

As an experienced engineer you should be able to quickly determine a rough size for major equipment during the initial planning stages of design. This allows you to space plan, budget and size major piping and electrical conduits/wiring/transformers/panels without completing intensive detailed calculations. This calculator compresses years and years of experience into an easy to use excel calculator.

Instruction Manual

Download the instruction manual and whitepaper HVAC Rule of Thumb Calculator - Whitepaper. Learn about the design experience and equations behind the calculator.

Screenshots from the calculator

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BUILDING INPUTS

Quickly input information on the building type, area, number of floors, fenestration and the location.

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LOCATION INPUTS

Select a location by state and city from a dropdown list with built in ASHRAE 90.1 design temperatures and zoning or manually input your location design criteria.

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AIR COOLED SUMMARY

Estimate the equipment sizes for the air cooled option: air cooled chillers, chilled water pumps, and air handler sizes.

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WATER COOLED SUMMARY

Estimate the equipment sizes for the water cooled option: water cooled chillers, coolling towers, chilled water pumps, condenser water pumps, and air handler sizes.

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SPLIT SYSTEM/HEAT PUMP/PACKAGED AC INPUTS

Estimate the equipment sizes for a split, heat pump, or packaged AC system. Results are split between the condensing unit and evaporator fan sizes.

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HEATING SUMMARY

If your location requires heating, the calculator will estimate the heating equipment sizes for the three most typical system types: Electric Heat Pump, Fuel Hot Water Boiler, and Steam Boiler.

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