Omnitron Systems Technology A10 Outside air requirements, Draft Requirements, With Closed Doors

Outside air requirements

Required for mobile home and in certain localities (Check with building officials)

Outside air must not be drawn from an enclosed space (garage or other unventilated spaces)

When using outside air, find a location where the chimney and outside air hole do not interfere with structural members of the home.

Connect a 4" (100 mm) diameter stainless steel or other non-combustible corrosion resistant material, to the O.S.A hook- up box.

Run the pipe to the outside avoiding sharp bends and turn the end down and fit a corrosion resistant mesh to prevent the entry of leaves and rodents, seal all the penetration of the outside wall.

Draft Requirements

SCAN stoves are only one component of the total system. The venting system is equally important for achieving the required flow of combustion air to the firebox and for safely removing unwanted combustion by-products from the appliance. If the venting system’s design does not promote these ends, the system may not function properly. Poorly functioning venting systems may create performance problems as well as become a safety hazard (i.e. an oversized chimney may result in less than optimum performance. Installations into a large, masonry chimney may require a liner to improve performance). A draft test should read greater than .04" W.C. (Inches Water Column) and less than .08" W.C. The table below shows the dimension of the connection piece as well as data for the draft requirements for the stove:

With Closed Doors

	Connection	Chimney	Efficiency	BTU
	piece	draught	in %
USA	ø 6”	0.05” WC	63%	7,600 – 29,000
Canada	ø152	13 Pa	63 %	7,600 – 29,000

The chimney draught depends on the weather conditions. In stormy weather, you may reduce the chimney draught by closing the damper in the smoke pipe (if a damper has been installed). If the chimney draught is strong, the combustion air supply must be reduced additionally.

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