Warning, G. negative pressure – Hearth and Home Technologies GO324MTCH User Manual
Page 5
Hearth & Home Technologies • Grand Oak Match Light Gas Log Sets • 4004-300 Rev F • 1/2011
5
Asphyxiation Risk
This appliance produces carbon monoxide
(CO).
• The free opening areas (in square inches)
of the chimney damper as shown in the
following tables must be met.
• User must make sure damper is locked
open.
• The installer is responsible to ensure
proper ventilation of flue gases before
appliance is used.
Fire needs to draft properly for safe
operation.
WARNING
G. Negative Pressure
Negative pressure results from the imbalance of air avail-
able for the fireplace to operate properly. Causes for this
imbalance include:
• Exhaust fans (kitchen, bath, etc.).
• Range hoods.
• Combustion air requirements for furnaces, water heaters
and other combustion appliances.
• Clothes dryers.
• Location of return-air vents to furnace or air
conditioning.
• Imbalances of the HVAC air handling system.
• Upper level air leaks: recessed lighting, attic hatch
opening, duct leaks.
Table 1 for Factory Built Fireplaces
Free Opening Area (in square inches) of Chimney Damper for Venting combustion
Products from Decorative Appliances for Installation in Solid Fuel Burning Fireplaces.
Chimney Ht.
(Feet)*
GO318
GO 24 & 324
GO 30 & 330
10
not approved
not approved
not approved
15
38.5
38.5
45.4
20
31.2
31.2
37.4
25
27.3
27.3
31.2
30
24.6
24.6
28.3
35
22.1
22.1
25.5
40
20.4
20.4
23.8
Table 2 for Masonary Built Fireplaces
Free Opening Area (in square inches) of Chimney Damper for Venting combustion Products
from Decorative Appliances for Installation in Solid Fuel Burning Fireplaces.
Chimney Ht.
(Feet)*
GO318
GO 24 & 324
GO 30 & 330
6
64
64
71.4
8
59.7
59.7
66.9
10
54.3
54.3
60.2
15
48.8
48.8
54.1
20
44.4
44.4
49.1
30
40.3
40.3
44.5
* Height is measured from the hearth to the top of the chimney.
Minimum height is 6 ft.
Table 3 for Minimum Fireplace Dimensions
Log Set
Front
Opening
Depth
Height
Rear
Width
Natural
BTU
GO24
32 in.
20 in.
18 in.
21 in.
73,000
GO30
38 in.
20 in.
18 in.
27 in.
80,000
GO318
32 in.
23 in.
22 in.
21 in.
77,000
GO324
34 in.
23 in.
22 in.
22 in.
86,000
GO330
40 in.
23 in
22 in.
29 in.
86,000