Thursday, April 24, 2014
 
   

Over 12 Low-Income Weatherization Programs are Using RED


What's New. . .

ASHRAE 62.2 California tool

  • This tool is specifically for compliance with the California version of 62.2 included in Title 24.
  • It allows the calculation of whole-building ventilation for new, existing, and multifamily dwellings.
  • When working on existing dwellings, it allows for the use of the alternative compliance approach.

What's Been Updated. . .

Zone Pressure Diagnostics (ZPD) tool

  • You may now enter the house-wrt-zone or the house-wrt-outdoor pressures for the Initial Zone Configuration and the Modified Zone Configuration. This makes this great tool even more useful and flexible.
  • At the bottom of the tool results, we have added "Percent of whole-house leakage passing through the zone = xx%.

Advanced Infiltration tool

  • Now includes a choice of methods for combining infiltration and unbalanced ventilation: select "Quadrature" or "0.5 rule.

Who Uses RED Calc Free Tools?

  • Home performance analysts
  • DOE weatherization energy auditors and quality-control inspectors
  • Energy auditors
  • HERS raters
  • Design professionals
  • HVAC analysts and installers
  • Building inspectors
  • Architects
  • Engineers
  • Building science researchers

First-Time Users, Start Here. . .

1. Watch this video tutorial at the RED YouTube Channel;

2. Read the Getting Started help document;

3. Use the RED Calc Free menu on the left to try any of the tools;

4. Click the "i" in the blue circle to the right of any tool name in the menu at the left for more information;

5. Click/touch any tool input or result label to see popup help when you need it; and

6. The advanced features of RED Calc FreeTM  will run on the latest versions of all common web browsers.


Screenshot of Weather Station Data tool

Weather Station Data tool screenshot


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