Enerzone Solution 1.8, Инструкция по установке и эксплуатации

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Solution 1.8 Installation and Operation Manual
8.4.1 Why inside chimneys are preferred
Venting systems that rise straight up from the stove flue collar provide the best performance.
Chimneys that rise inside the warm space of the house tend to provide a small amount of draft
even when there is no fire burning. This means that when you light a fire, the initial smoke goes up
the chimney and strong draft builds quickly as the chimney flue warms up. Although they are
common in North America, chimneys that exit a house wall and run up outside can cause
problems.
Good System Design
Inside chimneys are preferred because even when
no fire is burning, there is normally upward flow in
the system.
Inferior System Design
Outside chimneys are a problem because
when no fire burns they will go into cold
backdraft if the stove is installed low in the
house.
8.4.2 Why the chimney should penetrate the highest heated space
When it is cold outside, the warm air in the house is buoyant so it tends to rise. This tendency of
warm air to rise creates a slight pressure difference in the house. Called ‘stack effect’, it produces a
slightly negative pressure low in the house (relative to outside) and a slightly positive pressure
zone high in the house. If there is no fire burning in a heater connected to a chimney that is shorter
than the warm space inside the house, the slight negative pressure low in the house will compete
against the desired upward flow in the chimney.