REF1 said:
Most EPA non-cat stoves all recommend short, hot fires, with smaller pieces of wood to work their best. They can go through wood pretty fast at that rate.
I think might be a misinterpretation of guidance from the stove makers. Most non-cat EPA stove recommend a moderate firing rate for maximum efficiency. They do recommend a smaller, more intense fire than the old style fill it to the gills and smolder approach, but within reason. That is more our shoulder season burning technique. During winter, most of us burn fairly large splits to extend the burn times, yet see zero smoke from the flue. The key here is to get a good bed of coals first, burn dry wood, and don't choke it down too soon. Basically, if the glass is getting dark, the fire is too cool.
"Your PACIFIC ENERGY heater is designed for maximum overall efficiency at a moderate
firing rate. Overfiring is hazardous and a waste of fuel. Too slow a burn contributes to
creosote buildup and lowers combustion efficiency."
Lopi: Hints for Burning
• Get the appliance hot before adjusting to low burn
• Use smaller pieces of wood during start-up and high burns to increase temperature
• Use larger pieces of wood for overnight or sustained burns
• Stack the wood tightly together to establish a longer burn
• Leave a bed of ashes (1/2" deep) to allow for longer burns
• Be considerate of neighbors & the environment: burn dry wood only
• Burn small, intense fires instead of large, slow burning fires when possible
• Learn your appliance's operating characteristics to obtain optimum performance
Napoleon:
"Remember. it is more efficient to burn medium sized wood, briskly, and
refuel frequently than to load the fireplace with large logs that
result in a smoldering, inefficient fire and dirty glass.
For maximum efficiency, when the stove is thoroughly hot, load
it fully to the top of the door opening and burn at a medium
low setting. Maximum heat for minium fuel (optimum burn)
occurs when the stove top temperature beneath the trivet is
between 500°F (260°C) and 600°F (315°C). The bricks will be
nearly all white and the glass mostly clear. The whiteness of
the bricks and the cleanness of the glass are good indicators of
your operating efficiency. Not enough heat is produced when
only one or two pieces of wood are burned or the wood may
not burn completely. A minimum of three pieces are needed
to encase a bed of coals that sustains the fire.
Loosely stacked wood burns quicker than a tightly packed
load. Wood burns in cycles rather than giving a steady output
of heat. It is best to plan these cycles around your household
routine so that only enough coals are left to start the next load.
In the evening, load your stove, at least, a half-hour before bed
to ensure a good fire, hot enough to close the draft control for
an overnight burn. Burn only dry seasoned wood."