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Buse Timber Company
Everett, Washington
600 Horsepower Cleaver Brooks
High Pressure Steam Boiler.
The Eddy Draft Regulator is
Saving approximately $5,000.00 per Month!!
Buse Timber
Test Results		 Low Fire Medium Fire High Fire
Before After Before After Before After
Stack Temperature 371 316 388 357 403 371
Oxygen 7.5% 1.5% 6.9% 1.7% 3.9% 2.0%
Carbon Dioxide CO2 7.6% 11.0% 8.0% 10.9% 9.7% 10.7%
Static Draft -.08 +. 08 -.24 +2.1 -.26 +3.1
Excess Air 49.9% 6.9% 43.9% 7.5% 20.5% 9.5%
Pilot Tube Draft .07 .02 .31 .17 .46 .27
Air Velocity-Volume 1300 780 2750 2050 3650 2650
It Has Been Installed For Over Eleven (11) Years, And Is As Good Today As When It Was Installed
Except It’s A Little Golden Color Now From 11 Years Of Heat – It’ll probably last 30-50 more years

The above numbers prove a 34% reduction in stack loss. * see stack loss graph.

If you have further questions or comments, or would like to have your equipment 
tested for combustion and thermal efficiency, please contact:  

Draft Technologies
PO Box 3401
Arlington, WA. 98223		 360-403-7969 (Office)
425-508-4901 (Cell)
info@drafttechnologies.com

The EDR Energy Conservation System is patented in the U.S.A. and is a product of Draft Technologies. "EDR,"

"TWA Energy Recovery Plan," and "TWA Shared Recovery Plan" are trade names and/or trademarks of Draft Technologies.
© Copy right, Draft Technologies, 2001 Contact the web master at webmaster@drafttechnologies.com