We take pride in our quality of life in Washington State. And we all want to protect and preserve the environment. This information describes ways each wood heat user can help reduce air pollution. Even veteran wood heat users can find ways to have a cleaner burn. Less smoke means cleaner air for you, your family, your neighbors and the environment. And the less smoke you produce, the more heat and value you get from your wood. Simple changes to the way you burn in your stove or fireplace can help reduce smoke, reduce needed fuel and save you money. Learn how to minimize smoke, increase the heat you get from your wood and limit your impact on your neighbor by watching the video below.
If you are considering a wood stove or fireplace insert for your home, or upgrading your old wood stove to something that heats cleaner and more efficiently, take a few minutes to determine which device and fuel choice best fits your needs.
Wood can seem dry and still contain plenty of water, up to 50%. The moisture in wood makes the fire give off more smoke. On the other hand, dry wood can provide up to 44% more heat. It is against state law to burn wood with more than 20% moisture content in fireplaces or wood stoves.
Two things work very well at making sure your wood is dry enough: time and cover. Whether you buy wood or harvest your own, follow these tips to get it fire-ready:
State law does not regulate the dryness of any wood sold. If the seller states that the wood is dry or seasoned, consider it a claim; make sure for yourself. You are responsible for the dryness of the wood you put in your fire.
Manufactured logs (pressed sawdust or sawdust/wax) are legal, but be careful to follow the product instructions and to follow the recommendations in the owner's manual. Coal with less than one percent sulfur is legal in a coal-only stove.
State law prohibits burning the following in a solid fuel burning device:
Paper is legal only for starting the fire.
State law limits the density of smoke to under 20% opacity from the stack or chimney, to ensure people use clean burning techniques. Opacity means how much can been seen beyond/through the smoke. 100% opacity means you can't see anything. If you use dry enough fuel, the right equipment, and give your fire the right amount of air, there should be no visible smoke from your chimney or stove-pipe, only heat waves.
A hot, clean-burning fire
A smoldering, dampered-down fire
With proper maintenance and burning techniques smoke emissions should remain under 10% opacity.
There are two exceptions to the opacity rule:
The right amount of air gives you a hotter fire and more complete combustion. That translates to more heat from your wood and less smoke and pollution. Here are some cleaner burning tips: