It has to be at least the size of the stove collar.
Coal stove venting requirements.
The automatic stokers have combustion fans so draft is less of an issue.
Let s cover the basics.
Some older wood burning stoves are rear vent models.
Consult with your local building permit and code department to ensure that your equipment and its installation complies with their requirements.
If you have an existing liner in the masonry chimney.
Some automatic stokers are also available as direct vent models where a chimney is not required.
The minimum height of the wood coal stove or the fireplace chimney masonry or metal would be 3 above the roof surface and 2 above anything within 10 of course you can go higher which usually improves draft.
Generally coal stoves need chimneys to operate.
The venting systems with the exception of direct vent appliances must terminate at least 4 below 4 horizontally or 1 above any door window or gravity air inlet into the building.
Batch or hand fired coal stoves are more hands on hence.
Un certified woodstove clearance distances when the stove has a sheet metal jacket or casing 36 to combustibles.
For example a solid fuel appliance such as a wood burning or coal burning stove uses class a chimney pipe which is made to withstand the higher flue gas temperatures produced by that fuel.
To prevent fires ashes that are cleaned out from the stove or fireplace should be shoveled into a metal bucket with a metal lid and placed outside on the ground away from the building.
Each hearth appliance requires a particular type of vent pipe which are categorized accordingly.
There are batch or hand fired coal stoves and stoker coal stoves.
Both of them have advantages and disadvantages.
For any horizontal through the wall venting system you must have at least 12 inches of vertical rise from the top of the stove not including the flue collar itself or any elbows before connecting a 90 degree elbow piece to turn toward the wall.
60 above the stove top to the ceiling or any combustible above the heater.
In the end it will probably come down to personal preference.
If you decide to install a coal stove in your home you ll be looking at two options.
Install smoke and carbon monoxide alarms to warn of both fire and deadly fumes from a faulty furnace fireplace oven flue or other venting problem.
Un certified woodstove clearance distance.
In the united states venting most residential gas ranges and cooktops to the outside is not required.