beautypg.com

Warning, G. negative pressure – Hearth and Home Technologies GO24-IPI-LP User Manual

Page 5

background image

Hearth & Home Technologies • Grand Oak Gas Log Sets • 4004-299 Rev H • 05/08

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

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)*

GO 24 & 35

LP Gas

GO 24 & 35

Natural Gas

GO 30 & 40

LP Gas

GO 30 & 40

Natural Gas

0

5.

not approved

44.2

not approved

5

26.4

8.5

2.2

45.4

20

22.

.2

26.4

7.4

25

8.

27.

22.9

.2

0

7.

24.6

20.4

28.

5

5.9

22.

8.9

25.5

40

5.2

20.4

8.

2.8

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)*

GO 24 & 35

LP Gas

GO 24 & 35

Natural Gas

GO 30 & 40

LP Gas

GO 30 & 40

Natural Gas

6

49.2

64

56.6

7.4

8

45.5

59.7

52.4

66.9

0

4.7

54.

48.2

60.2

5

7.7

48.8

4.2

54.

20

4.

44.4

9.8

49.

0

.2

40.

5.9

44.5

* Height is measured from the hearth to the top of the chimney.

Minimum height is 6 ft.

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 3 for Minimum Fireplace Dimensions

Log Set

Front

Opening

Depth

Height

Rear

Width

Natural

BTU

Propane

BTU

GO24

2 in.

20 in.

8 in.

2 in.

7,000

6,000

GO0

8 in.

20 in.

8 in.

27 in.

80,000

70,000

GO5

4 in.

2 in.

22 in.

22 in.

88,000

80,000

GO40

40 in.

2 in.

22 in.

29 in.

92,000

82,000