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US CPSC Sketch of a metal chimney and woodstove - clearances are not indicated. Woodstove Combustion Air Requirements

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Combustion air defects & hazards at woodstoves:

This article explains how to recognize and fix combustion air defects on heating appliances such as boilers, furnaces, and water heaters.

This article series explains how to recognize and fix combustion air defects on heating appliances such as boilers, furnaces, and water heaters. These articles answer most questions about central hot water heating system troubleshooting, inspection, diagnosis, and repairs.



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Combustion Air for Woodstoves - How is It Provided?

Jotul woodstove at idle, low fire (C) D Friedman The link to the original Q&A article in PDF form immediately below is followed by an expanded/updated online version of this article.

The question-and-answer article below paraphrases, quotes-from, updates, and comments an original article from Solar Age Magazine and written by Steven Bliss.

Question: how do I provide combustion air for a woodstove?

I've often read about the necessity of providing combustion air to a woodstove, but there's usually not much explanation of how it's done. Is it just a pipe that ends near the stove inlet? - Chris Rich, New Castle VA

Answer: hard-ducted outside combustion air required for some woodstoves - in manufactured housing

Many wood-stove manufacturers provide a special line of stoves intended for manufactured housing. These woodstoves must have an external combustion-air inlet hard-ducted directly into the stove.

Often the combustion air supply duct comes up through the floor under the woodstove (or coal stove or airtight wood-burning fireplace), making it almost invisible from inside the room where the woodstove is located.

This makes it attractive for the homeowner, and easy for the builder to install.

Jotul Woodstove installed by Paul Galow (C) Daniel Friedman

Woodstoves also regulate the wood fire and thus stove temperature by adjusting the combustion air intake to the woodstove at the fire door.

Above is a beautiful Jotul woodstove that I (DF) traded to Paul Galow for a fancy wristwatch. The orange arrow points to the woodstove air inlet draft control.

Wood Stove Articles

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Continue reading at WOOD STOVE OPERATION & SAFETY or select a topic from closely-related articles below, or see our complete INDEX to RELATED ARTICLES below.

Or see CHIMNEY FIRE ACTION / PREVENTION

Or see COMBUSTION AIR REQUIREMENTS - home

Or see COMBUSTION AIR for TIGHT BUILDINGS

Or see COMBUSTION AIR DEFECT EFFECTS

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