Rocket Installation and Operation Manual
36
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 spac
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 i
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.
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
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 hou
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.
Installation and Operation Manual
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.
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
Venting systems that rise straight up from the stove flue collar provide the best
e 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
n North America, chimneys that exit a house
Inferior System Design
chimneys are a problem
because when no fire burns they will go
into cold backdraft if the stove is
installed low in the house.
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
se. 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
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Страница 29: ...Rocket Installation and Operation Manual 29 Clearances to combustible materials and floor protection...
Страница 32: ...Rocket Installation and Operation Manual 32 Clearances for shield construction...
Страница 44: ...Rocket Installation and Operation Manual 44 Appendix 4 Exploded Diagram and Parts List...