non-vented decorative fireplaces using ethanol fuel

Research studies on wood smoke and other air pollution.

non-vented decorative fireplaces using ethanol fuel

Postby Wilberforce » Tue Feb 11, 2014 8:36 pm

Chamber studies on non-vented decorative fireplaces using liquid or gelled ethanol fuel
Schripp et al ... ode=esthag

Decorative ethanol fireplaces are becoming more and more commonly used in many different countries. These fireplaces are constructed such that they have no fume extraction system and so all of the gases from combustion, volatile organic compounds and particulate emissions are released into the room. In order to determine the release behavior and the chemical composition of the emissions, a variety of combinations of ethanol fireplaces and fuels were examined in a 48 m³ emission test chamber under typical living room environmental conditions. 4 ethanol fireplaces with 8 different fuels (3 liquid samples, 5 gel-type samples) were tested. The ventilation conditions were set up corresponding to the manufacturers’ recommendations and DIN 4734-1. The air concentrations in the chamber were evaluated based on guideline values for indoor air. Of the combustion gases examined, the quantity of carbon dioxide and nitrogen dioxide in particular were close to or even above the guideline values in many cases. A release of components of the fuel (e.g. the denaturing substances) was also detected in the chamber air. In two experiments, a benzene concentration of over 12.5 ppb and an increased formaldehyde concentration (>0.1 ppm) were identified in the chamber air. The ethanol fireplaces were – irrespective of the type of fuel used – strong sources of fine and ultra-fine particles (<560 nm). Overall, ethanol fireplaces have a considerable influence on the quality of the indoor air due to the lack of ventilation. This aspect should – in addition to fire protection – be properly considered when using such devices.
• The Surgeon General has determined that there is no safe level of exposure to ambient smoke!

• If you smell even a subtle odor of smoke, you are being exposed to poisonous and carcinogenic chemical compounds!

• Even a brief exposure to smoke raises blood pressure, (no matter what your state of health) and can cause blood clotting, stroke, or heart attack in vulnerable people. Even children experience elevated blood pressure when exposed to smoke!

• Since smoke drastically weakens the lungs' immune system, avoiding smoke is one of the best ways to prevent colds, flu, bronchitis, or risk of an even more serious respiratory illness, such as pneumonia or tuberculosis! Does your child have the flu? Chances are they have been exposed to ambient smoke!
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