Fireplace firewood retainer assembly with air deflector, fireplace incorporating the same and method of reducing particulate emissions in a wood burning fireplace

a technology of air deflector and firewood retainer, which is applied in the field of fireplace firewood retainer assembly with air deflector, which can solve the problems of high particulate emissions, inefficient use of air, and high particulate combustion

Inactive Publication Date: 2009-08-27
INNOVATIVE HEARTH PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Applicant has discovered that this cooling of the front log results in inefficient combustion resulting in high particulate matter emissions.
In fact, a good portion of the air that enters the combustion chamber 15 is not u

Method used

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  • Fireplace firewood retainer assembly with air deflector, fireplace incorporating the same and method of reducing particulate emissions in a wood burning fireplace
  • Fireplace firewood retainer assembly with air deflector, fireplace incorporating the same and method of reducing particulate emissions in a wood burning fireplace
  • Fireplace firewood retainer assembly with air deflector, fireplace incorporating the same and method of reducing particulate emissions in a wood burning fireplace

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Embodiment Construction

[0009]Applicant has discovered that a way to improve the burning efficiency and to reduce particulate emissions of a wood burning fireplace is to have the air entering the combustion chamber that is used for combustion be pre-heated. Applicant has discovered that this can be achieved by guiding the air entering the combustion chamber 15 beneath the firewood, e.g., the logs 12, 14 in a space 22 between the logs and the heated embers 16, as for example shown in FIG. 2. As the air moves past the heated embers, it is heated and then rises to aid in the combustion of the logs 12, 14. To achieve this effect, a baffle or deflector 24 such as for example a deflector plate is positioned in front of the grate so that air 18a entering the combustion chamber strikes the deflector 24 and is deflected downward towards the embers, as for example along a path 26. In an exemplary embodiment, the deflector is a plate angled from the vertical plane along an angle 28. In an exemplary embodiment, the an...

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Abstract

A firewood retainer assembly and a fireplace incorporating the same are provided. The assembly includes a grate for supporting firewood at a level above a floor of a fireplace combustion chamber. The grate includes a first end opposite a second end such that a width of said grate is defined between these ends. The assembly also includes a deflector positioned adjacent the grate for deflecting air entering said combustion chamber below the level. A method of burning firewood is also provided which results in reduced particulate emissions. The method requires the deflection of air used for combustion below the firewood, heating the air with embers located below the firewood, and using the heated air for combustion.

Description

BACKGROUND OF THE INVENTION[0001]In wood burning fireplaces, firewood, such as wood logs, are typically placed on a log retainer or grate that sits above the floor of the fireplace fire box. Grates 10 are well known in the art and typically consist of spaced apart interconnected bar members which provide a support 11 for the wood logs at a distance 13 above a combustion chamber floor 17. As combustion of the wood logs 12, 14 supported by the grate takes place, air is drawn into the fireplace combustion chamber 15 where the logs are located. Gaseous combustion products generated by the combustion of the logs are collected and exhausted via a chimney system above the combustion zone, whereas ambers 16 from log combustion remain underneath the grate and can be removed manually after the flame is extinguished.[0002]In conventional wood burning fireplaces, as the air 18 enters the combustion chamber, it is drawn through the side of the grate, as for example shown in FIG. 1, and partially...

Claims

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Application Information

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IPC IPC(8): F24B1/188
CPCF24B1/193
Inventor DUFOUR, ERIC
Owner INNOVATIVE HEARTH PROD
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