The proper amount of draft is important in both the catalytic appliance as well as a non-catalytic unit. Without enough draft the burning process cannot take place. Installations with a draft of .02" of water or less are considered marginal and may not burn reliably. In the combustor equipped appliance it is not recommended that the draft exceed .06" of water or over firing can occur. The recommended operating range is .03-.06" of water.

Bypass - The bypass is used in combustor-equipped devices when the stove door is opened for loading or inspection and when the stove is operated in the high-fire mode.

Barometric Damper - A barometric damper can be helpful in stabilizing flow conditions and can minimize the chance of over firing. It is also advisable to locate a manual damper above a barometric damper for use as a throttling valve in case of a flue fire.

Draft Gauge - Draft conditions vary due to altitude, atmospheric changes, and chimney and wind conditions. Changes in draft can affect the combustor's performance and life. A draft gauge will permit an operator to adjust the stove for more consistent burning. There are a variety of gauges on the market.

Manual Flue Damper - The manual flue damper can be used in conjunction with the draft gauge to regulate draft conditions. It will also serve as a throttling valve should a chimney fire occur.

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Operating A Catalytic Wood-Burning Appliance

Draft Controls

Bypass

Barometric Damper

Draft Gauge

Manual Flue Damper