Chimney Drafting - Smoke Getting In the House

There are multiple possible reasons why your chimney has poor ventilation and your house fills with smoke.

The Ten feet - Two feet rule

Measure out ten feet horizontally from your chimney to the nearest object. Having done that, go vertically two feet. This formula will give you the height of your chimney. A chimney should be the correct height and be tall enough to trap the wind. Unless your peak is within a 10 foot clearance, you chimney doesn't have to be taller than the peak. The wind should blow across the chimney and create a draft that carries the smoke out if. It is possible for a negative pressure situation to occur. If this happens, the wind causes a downdraft. In this case, it is a good idea to raise the height of your chimney.

If you do have to raise your chimney, you will want to know that flue extenders are a chimney cap that has been raised by as much as three feet. This is accomplished using long sheet metal sides. You can get them in stainless steel or copper. They can solve a lot of drafting problems. They are a relatively inexpensive solution, especially when compared to having a brick mason come out and raise the flue tiles.

Chimney pots are also a great item. Typically, they were made from clay and were used in Europe for hundreds of years. A new line of chimney pots are also made of copper. While they are very pretty to look at, copper chimney pots are pricey. You need to acquire the name of the manufacturer and the model number to figure out what size and brand of pipe you will require in order to raise the chimney should you have a metal zero clearance fireplace. The Vacu-Stack and Windbeater chimney caps are a couple other great items to consider.

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