Enerzone Destination 2.3, Инструкция по установке и эксплуатации, Страница: 36 / 56

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Destination 2.3 Insert Installation and Operation Manual
10 The Venting System
10.1 General
The venting system, made up of the chimney and the liner inside the chimney, acts as the engine
that drives your wood heating system. Even the best insert will not function safely and efficiently as
intended if it is not connected to a suitable chimney and liner system.
The heat in the flue gases that pass from the insert into the chimney is not waste heat. This heat is
what the chimney uses to make the draft that draws in combustion air, keeps smoke inside the insert
and safely vents exhaust to outside. The heat in the flue gas can be seen as the fuel the chimney
uses to create draft.
10.2 Block-Off Plate
To reduce the possibility of a cold air back draft from the masonry chimney into the room, the
installation of a sheet metal block-off plate (A) is recommended. When fabricating the block-off plate,
cut the pipe hole slightly larger than the liner diameter and pass the liner through the hole. Install the
block-off plate and secure it with masonry nails. Seal the joints between the plate and the chimney
with high temperature silicone and use stove cement to seal between the pipe and the plate.
In Canada, the CSA B365 Standard permits «Roxul» type wool to be stuffed around the liner as it
passes through the throat area as an alternative to a sheet metal block-off plate. However, this
method is less efficient than using a plate.