Closing the damper on a wood stove does not make it hotter; it does the exact opposite.
For a Hotter Fire
Fully open the damper to maximize airflow. It provides ample oxygen to the fire, resulting in a more intense and hotter burn.
To get the most heat out of your wood stove, burn well-seasoned hardwood with a moisture content below 20%, leave a 111 to 222-inch layer of ash to insulate the coal bed, and utilize a stove pipe thermometer to keep the combustion zone hot and efficient.
When Not in Use. If your log burner isn't in use, close the damper completely to stop cold draughts from sneaking in. But be mindful—if your chimney is prone to dampness, leaving it slightly ajar in mild weather can help prevent moisture build-up inside the flue.
The worst firewood to burn falls into two categories: toxic and highly inefficient. You should never burn wood that produces dangerous chemical fumes or excessive smoke, nor wood that burns too quickly or spits hazardous sparks.
It is illegal to burn any wood that has been treated, painted, or glued, as well as poisonous plants and driftwood. Burning these materials releases toxic chemicals, heavy metals, and hazardous fumes into the air.
Contrary to popular opinion, the hardwood's, like oak and poplar, created more creosote than the softwoods, like tamarack and pine. The reason for this is that if the softwoods are dry, they create a hotter, more intense fire. The draft created by the hotter fire moves the air up the chimney faster!
How to Do It: Wait until all embers have extinguished and the fireplace is no longer warm to the touch. Closing the damper too soon can trap smoke and carbon monoxide inside your home, creating a dangerous situation. Safety Tip: Always double-check that the fire is completely out before closing the damper.
Creosote ignites and burns off at approximately 450∘F to 500∘F (232∘C to 260∘C). However, completely eradicating thick, heavy buildup typically requires sustained flue temperatures exceeding 1,000∘F to 1,200∘F (538∘F to 649∘C).
The biggest mistake? Using logs that simply aren't dry enough. Firewood with high moisture content produces more smoke, less heat and leaves behind sticky tar (creosote) in your flue and burner. It also makes lighting your fire harder, wastes energy and can even damage your stove.
However, if you have a smaller fire pit (less than 3 feet in diameter), you may only need 2-3 logs per hour. Conversely, for larger fire pits (over 4 feet in diameter) or if you're aiming for a roaring fire, you might need 5-6 logs per hour.
Burning wet wood has two negative consequences:
Your fire will smoke more, causing creosote build up in your stove and chimney. Your wood will burn less efficiently, costing you more to create the same amount of heat.
Properly cured, or "seasoned" firewood needs to be cut, split and stacked for a minimum of six months to be properly dried for this fall and winters fireplace needs.
If you have a chimney in the basement put it down there. Cut a vent in the floor directly above the stove. At the other end of the home cot another vent in the floor and run an insulated pipe down to a few inches from the floor. This will cause a thermal loop moving the heat thru the home with no fan.
Yes, having a wood stove will generally increase your homeowners insurance premiums, though costs vary by provider. Some carriers add a nominal fee (e.g., $30 to $60 annually), while others might increase premiums by roughly 10%. In certain cases, an insurer may even decline coverage if the stove doesn't meet safety standards.
HVAC Damper Open Or Closed In Summer/Winter
In most homes, dampers going to the upstairs are open in the summer and closed in the winter. By closing the dampers to the upstairs in the winter, it allows for the heat to rise naturally after first being introduced into the lower levels of the home.
Hot fires kill creosote.
If you keep your chimney temperature above 250º F, you are far less likely to have problematic amounts of creosote accumulate between yearly cleanings.
3-2-10 Rule Explained
Explained, the chimney pipe must be a minimum of three feet above the roof but also two feet taller than anything within ten feet. The portion of the rule stating the pipe needs to be 2 feet above anything within 10 feet is where most people get confused.
Cold logs will still burn, but slightly warmer logs burn better. Bringing firewood indoors ahead of time helps your stove reach temperature faster, improves heat output, and keeps your fire cleaner and easier to manage throughout the evening.
A fully open damper allows maximum airflow, making the fire burn hotter and faster. If you want a slower burn or a fire that lasts longer, you can partially close the damper to reduce the oxygen supply. Just be careful not to close it too much because it can lead to poor combustion and smoke buildup.
The "7 Times Rule" for chimneys dictates that the cross-sectional area of a masonry chimney flue cannot exceed seven times the area of the appliance’s vent connector (draft hood outlet) to ensure proper drafting and prevent acidic condensation. If the chimney is too large, it must be relined to prevent damage from cooling gases.
But can I close my damper just a little so I lose less heat on my chimney? No, never do this. The damper to your fireplace must be completely open when a fire is burning. If you close the damper even slightly, you risk allowing smoke and other dangerous contaminants from the combustion process into the house.
The worst firewood to burn falls into two categories: toxic and highly inefficient. You should never burn wood that produces dangerous chemical fumes or excessive smoke, nor wood that burns too quickly or spits hazardous sparks.
Creosote is restricted or banned across residential and consumer markets due to its classification as a probable carcinogen and its high toxicity to the environment.
We don't recommend adding wood to a duraflame® fire. When you add other materials to the firelog, it can change the characteristics of the burn.