Pollutant emission rates from a radiant fiber-matrix unvented gas space heater

Apte, M.G.; Traynor, G.W.

doi:10.2172/6007026

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Health concerns over pollutant emissions from unflued gas heaters in dwellings and schools in Australia were raised in the 1980s, particularly in relation to nitrogen dioxide (NO 2 ) and carbon monoxide (CO) emissions (Brown, 1997). Similar concerns have occurred in the USA, where there has been much research into the types of pollutants emitted from unflued gas appliances (Girman et al., 1983; Traynor et al., 1983; Moschandreas et al., 1985), the persistence and fate of nitrogen oxide (NO x ) emissions indoors due to surface reactions (Brauer et al., 1990; Spicer et al., 1993; Spicer and Billick, 1995) and reduced emissions from sizing guidelines (DeWerth et al., 1996), or from new burner designs (Apte and Traynor, 1989; Duret and Tidball, 1990). One US outcome is that the Californian government has legislated to allow the sale and indoor use of “natural gas fueled unvented decorative gas logs and fireplaces” provided that standards are developed and adopted for these appliances (Traynor, 1999).…”

Section: Introductionmentioning

confidence: 86%

Room chamber assessment of the pollutant emission properties of (nominally) low-emission unflued gas heaters

2004

View full text Add to dashboard Cite

Unflued gas heaters have been popular as primary heating sources in Australian homes for many years due to their ease of installation and energy efficiency, with approximately 600,000 now installed in housing and schools. However, with concerns over potential health impacts to occupants, manufacturers have reduced the nitrogen dioxide emissions from unflued gas heaters in Australia over recent years. They have done so with a target level for nitrogen dioxide in indoor air of 300 p.p.b. This is somewhat higher than the ambient air (and WHO) guideline of 110 p.p.b. Several studies of child respiratory health show an impact of unflued gas combustion products. A full characterization of the combustion products is needed under conditions that simulate heater operation in practice-this study was undertaken to provide such characterization. Key findings are that the focus needs to be on total gas emissions (not just nitrogen dioxide), and that heater installation can be very sensitive to small faults which lead to very high levels of toxic pollutants. These findings have influenced current government proposals for emission limits for these heaters.

show abstract