Building Different Fires For Diverse Needs - Osburn OB04003 Installation And Operation Manual

Stratford Fireplace Installation and Operation Manual
You will notice that as you reduce the air setting, the flames slow down. This is your indication that the
fireplace is burning at its peak efficiency.
If the flames get small and almost disappear when you turn down the air, you have turned down the air too
early, or your firewood is wetter than it should be. With good fuel and correct air control use, the flames
should slow down, but should stay large and steady, even as the air supply is reduced.

4.4.6 BUILDING DIFFERENT FIRES FOR DIVERSE NEEDS

Using the air control is not the only way to match the fireplace's heat output to the heat demand. Your
house will need far less heat in October than in January to be kept at a comfortable temperature. If you fill
the firebox full in fall weather, you will either overheat the space or turn the fireplace down so much that
the fire will be smoky and inefficient. Here are some suggestions for building fires to match different heat
demand.
4.4.6.1 Small Fires to Take the Chill Off the House
To build a small fire that will produce a low heat output, use small pieces of firewood and load them
crisscross in the firebox. The pieces should be only 3" to 4" in diameter. After raking the coals, you can lay
two pieces parallel to each other corner to corner in the firebox and lay two more across them in the other
direction. Open the air control fully and only reduce the air after the wood is fully flaming. This kind of fire
is good for mild weather when you are around to tend the fireplace and should provide enough heat for
four hours or more. Small fires like this are a good time to use softer wood species so there will be less
chance of overheating the house.
4.4.6.2 Long Lasting Low Output Fires
Sometimes you will want to build a fire to last up to eight hours, but don't need intense heat. In this case
use soft wood species and place the logs compactly in the firebox so the pieces are packed tightly together.
You will need to fire the load hot for long enough to fully char the log surfaces before you can turn the air
down. Make sure the fire is flaming brightly before leaving the fire to burn.
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