ClearStak is an EPA approved testing facility. The testing services offered are: 

 

• Method 28 (Certification & Auditing of Wood Heaters)  

• Method 28 WHH

• Method 28 WHH Partial Thermal Storage

• ASTM E2515

• Portable Particulate Testing 

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 Testing can be performed on the following appliances: 

 

• Indoor and Outdoor Hydronic Heaters

• Pellet Stoves 

• Woodstoves 

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Accreditations:

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• ISO 17025:2005 Testing and Calibration Laboratories 

• United States Environmental Protection Agency for the certification of wood heaters pursuant to subpart AAA of 40 CFR Part 60, New Source Performance Standards for Residential Wood Heaters and subpart QQQQ of 40 CFR Part 60, Standards of Performance for New Hydronic Heaters and Forced Air Furnaces.

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