Easy way to calculate residential HVAC load size: heat loss, heat gain, CFM & radiation.

Presenting software for HVAC contractors:  make your business more efficient & profitable.

Try it now: run five load size calculations with the free demo!

E-Z Heatloss                                E-Z Estimator  Detailed Report
heat loss, heat gain, CFM
 Fuel Cost Comparison
Fuel Cost Comparison: sales enhancement tool.
Heating Cooling

Bid Proposal

Load Size 

Calculation

Change Order

BTUH

BTUH

Invoice

CFM  

Latent Gain

Material List

Feet of Radiation

Sensible Gain

Bill of Materials

Totals & per room.

CFM

Sale Analysis

BTUH/ Sqft.

Detailed Bid Worksheet

 Fuel Cost 

Comparison1,4
Click here for more detail:

E-Z Heatloss

E-Z Estimator
Click here to 

Download Demo!2

Download a Demo!
Vista users click here 

Demo for Vista3

Existing users:  Important program update 05/31/09 for versions < 6.0.198 ! Download & install this update to insure accuracy. 

Update to ver.  6.0.198

  1. Can you increase your profit and reduce the customer's operating cost by upgrading the sale to a more efficient furnace or air conditioner? Proper use of this feature can boost your sales and increase long term customer satisfaction..
  2. The E-Z Heatloss Demo has been improved to allow five  free trial load size calculations using the program's full capacity. You can compare its output to your current manual methods or other software.  If there is concern about acceptance by local regulators, they can download and evaluate the program for themselves.
  3. The program is unchanged, but the installer uses side by side deployment to prevent Dll Hell. It includes the files in the repair download below.  Side by side deployment works on XP-SP2 and Vista.
  4. The Heating & Cooling Load Hour Map link in ReadMeFirst.chm has been broken by merging organizations.  Use this link instead. The maps are zipped, they will expand to 190KB.  They are graphs superimposed upon a map of the U.S.A. Read between the lines.


Download help file explaining how to make a Restoration Disk (300KB)

Download a self-extracting WinZIP file to repair Windows Vista Installation problem.

Click here for other software by Thomas and Associates

ORDER BY PHONE - 1-800-426-7130 or 1-231-533-8472
Buy E-Z Heat loss with Master Card the easy way to calculate HVAC load size for heat loss, heatgain E-Z Heat loss for residential HVAC load size calculation: heat loss, heat gain, CFM

Thomas and Associates
PO Box 406
Bellaire, MI 49615

Questions or comments: support@thomasandassoc.com

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