Keeping a Fire Going When Temperatures Are Warm

In any outdoor wood boiler, when temperatures are warm — especially in the fall — keeping a fire from going out when there's wood left in the firebox can be difficult. This is primarily because the boiler isn't firing often enough to re-ignite the wood using the remaining coals. A few simple changes can keep a fire going through the shoulder seasons.

1. Adjust the differential to 5 or even 3 degrees, leaving the set temperature at 180°F.
2. Load less wood more often, keeping each burn to about 12 hours.
3. On the Pristine series, if you see bridging, use small pieces of wood covering the nozzle.
4. On the Multipass, getting an ash bed established is important — take ashes from the ash pan and put them back into the fire until the ash bed is 2" to 3" above the shaker grates.
5. On the Multipass, turn the fan knob to a slower setting, possibly the slowest setting available.
6. Mix dry (under 20% moisture) and moderately dry (20–30% moisture) hardwood for the best results at this time of year.