Wood Burning Stove

Woodburning stove must use a chimney for venting

If there is a masonry chimney, a stainless steel liner has to be installed inside masonry chimney and connected to stove. The typical structure looks like the picture below

If there is no masonry chimney, a stainless steel insulated chimney has to be installed. The typical structure looks like below


If floor is made by combustible material like hardwood, laminate or carpet, there must be clearance as shown below to prevent these surface from getting too hot.

Front clearance is 18" set by code. The side clearance and back clearance vary based on the make and model of actual stove. Check the specs of stove, add the clearance. Make sure there is enough room for the stove installation.

The most important things to be considered:

1. EPA ( Environment Protection Agency ) approved

  • All woodburning stove must be EPA approved.

  • This is to certify that stove meets particulate emission guidelines.


2. Heating capacity

  • It's related to the size of firebox. The bigger firebox, the more heat is generated.

  • The quality of log being burned will greatly affect the heat output.


Factors related to installation:

1. Clearance

  • If floor is made of combustible material like hardwood or laminate, certain clearance around stove must be maintained.

  • The front clearance is set by code as 18"

  • The clearances on side and back of stove are set by manufacturers.


2. Electricity supply

  • Woodburning stove comes with blower and it needs electricity to run.

  • A regular 110V power outlet should be brought nearby for easy plug in.


3. Stainless steel insulated chimney

  • A stainless steel insulated chimney must be installed if there is no masonry chimney nearby

  • There are two typical ways of installing stainless steel insulated chimney

  • thru-roof installation will save material cost on stainless steel chimney since components are quite expensive. But the pipe running inside the house will take up space inside plus roof patch will become a concern

  • side-wall installation needs more stainless steel components. But the installation is quite simple and there is no pipe to take away precious indoor space.


Further factors to be considered:

1. Operation of woodburning stove

  • Keep air pressure in balance before light fire like open window for a few minutes.

  • Woodburning stove consumes indoor oxygen while in use. This easily creates negative air pressure that can propel smoke into the house.

  • At the beginning of burning, chimney is not hot therefore fume doesn't have strong momentum to rise. Negative air pressure will create back draft that brings some smoke into the room. To deter this, a flaming log or torch can be held up the chimney in order to create an updraft and draw smoke out of the home while keeping window open for a while. Once chimney is hot then you can close the window.


2. Inspection from house insurance

  • In order to pass the inspection performed by house insurance company, woodburning stove must be EPA approved

  • Installation of woodburning stove has to be performed by WETT certified installer.