LETS CLEAR THE AIR

It's time to clear away the fog of misinformation regarding the impact of VENT-FREE gas product emissions on indoor air quality (IAQ).

The American Gas Association Research Division (AGAR),  working on a grant from the Gas Appliance Manufacturers Association (GAMA), recently conducted conclusive new independent research which shows vent-free gas products perform well within the current accepted national IAQ standards and recomendations. 
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AGA RESEARCH COMPARISON
OF NATIONAL IAQ STANDARDS TO VENT-FREE GAS PRODUCTS EMISSIONS
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Combustion                     Specifying       National IAQ Standard        Vent-free
by-product                       Agency            Exposure level/time            Gas product

Carbon Monoxide (CO)      CPSC            15 ppm avg/8 hrs.                   2.5 ppm/8 hrs.
                                                                25 ppm avg/1 hour                 1.5 ppm/1 hour

Nitrogen Dioxide (NO2)      CPSC            0.3 ppm avg/1 hour                0.22 ppm/1 hour

Carbon Dioxide (CO2)        OSHA           5000 ppm avg/8 hrs.               1500 ppm/8 hrs.

Oxygen (O2)                      NIOSH          19.5% Min./continuous             20.4% continuous 

Humidity (H20)                   ASHRAE       60% Max./continuous              36.5 maximum
                                                                                                         w/ no condensation
                                                                                                        
                                                                                                                                                   
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The findings summarized above consider a broad range of operating conditions for btu input, volume and air exchange rates, including oversized units. 

Bottom line-----------Since the early 1980s, more than 4 million vent-free gas heaters and fireplace products have been installed in U.S. homes.  Now the new AGAR data has verified that listed vent-free gas products more than satisfy IAQ standards, when used over long periods and among sensitive populations. 

If you would like a complete copy of the AGAR study, just write:  Vent-Free Gas Products Division, GAMA, P.O. Box 9245, Arlington VA. 22219 or fax:  703-525-0718