Vent Termination Clearances, Framing, Feet

VENT TERMINATION CLEARANCES

These instructions should be used as a guide- line and do not supersede local codes in any way. Install vent according to local codes, these instructions, the current National Fuel Gas Code (ANSI-Z223.1) in the USA or the current standards of CAN/CGA-B149.1 and - B149.2 in Canada.

Vertical Vent Termination Clearances

Terminate single vent caps relative to building components according to Figure 4.

TERMINATION HEIGHTS FOR VENTS ABOVE

FLAT OR SLOPED ROOFS

Horizontal Overhang

Horizontal Vent Termination Clearances

Combustible Projection 2¹⁄₂ inches or less in length

Combustible Projection greater than 2¹⁄₂ inches in length

Ventilated

Soffit Unventilated

Soffit

		3"
18"	12"	(76 mm)
(457 mm)	(305 mm)

Termination Kit

Step 1. FRAMING

Frame these appliances as illustrated in Fig- ures 8 on page 7, unless the appliance is to be installed in a corner. See Figure 9 on page 7 for corner framing installations. All framing details must allow for a minimum clearance to combustible framing members as shown in Table 2 on page 4.

If the appliance is to be elevated above floor level, a solid continuous platform must be constructed. Headers may be in direct contact with the appli- ance top spacers but must not be supported by them or notched to fit around them. All construc- tion above the appliance must be self supporting, DO NOT use the appliance for structural support. The fireplace should be secured to the side framing members using the unit's nailing flanges - one top

2 FT MIN.

Vent Termination

Storm Collar

Flashing

Concentric

Vent Pipe

2 FT	Vertical
MIN.	Wall
	Wall
Lowest
Discharge
Opening
H*
	X
	12
Roof Pitch is X/12

1 inch (25.4 mm) Minimum Clearance to Combustibles

*H = MINIMUM HEIGHT FROM ROOF TO LOWEST DISCHARGE OPENING OF VENT

See Figure 31 or 32 for the recess allowances, into exterior walls, of the round and square horizontal terminations.

Figure 5 - Side Elevation View

Step 2. (page 5) Route gas supply line to appliance location.

Step 3. (page 8) Install the vent system and exterior termination.

and bottom on each side of the fireplace front. See Figure 6. Use 8d nails or their equivalent.

	Side	Unit Nailing Flange
	Side	(No clearance to
	Framing	(No clearance to
	Framing	combustible
		framing is required)

	Roof Pitch	H
	Roof Pitch	(feet)
		(feet)
	Flat to 6/12	1.0
	Over 6/12 to 7/12	1.25
	Over 7/12 to 8/12	1.5
	Over 8/12 to 9/12	2.0
	Over 9/12 to 10/12	2.5
	Over10/12 to 11/12	3.25
	Over 11/12 to 12/12	4.0

Figure 4

Terminate multiple vent terminations accord- ing to the installation codes listed at the top of this page.

Horizontal Vent Termination Clearances

The horizontal vent termination must have a minimum of 3" (76 mm) clearance to any overhead combustible projection of 2 ¹⁄₂" (64

mm)or less. See Figure 5. For projections exceeding 2 ¹⁄₂" (64 mm), see Figure 5. For additional vent location restrictions refer to Figure 7 on page 6.

TYPICAL INSTALLATION SEQUENCE

The typical sequence of installation follows, however, each installation is unique resulting in variations to those described.

See the page numbers references in the follow- ing steps for detailed procedures.

Step 1. (page 5) Construct the appliance framing. Position the appliance within the framing and secure with nailing brackets.

Step 4. (page 20) Field Wiring

Millivolt Appliances – The operating control switch is factory installed.

Step 5. (page 20) Install blower kit (optional equipment).

Step 6. (page 21) Make connection to gas supply.

Step 7. (page 22) Install the logs, vermicu- lite and glowing embers.

Step 8. (page 22) Checkout appliance opera- tion.

Step 9. (page 22) Install glass door frame assembly.

Step 10. (page 23) Adjust burner to ensure proper flame appearance.

Step 11. (page 23) Install the hoods.

DETAILED INSTALLATION STEPS

The appliance is shipped with all gas controls and components installed and pre-wired. Re- move the shipping carton, exposing the front glass door. Remove the top panel. Remove the cardboard from underneath the pressure relief plates. Gently depress the outer top corners of the access panel until the catches "pop" the panel free, allowing it to swing out and down to open. Open the two latches (located under the firebox floor) securing the glass door. Remove the door by tilting it outward at the bottom and lifting it up. Set the door aside protecting it from inadvertent damage. See

Figure 50 on page 21. Remove the two card- board pad strips from between the firebox subfloor and the firebox sides.

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

Left Side Front Corner of Fireplace Shown

(Right Side Requirements the Same)

Unit Being Secured By Its Nailing Flanges

To The Framing

Note: The nailing flanges, combustible members

and screw heads located in areas directly adjacent

to the nailing flanges, are EXEMPT from the 1/2”

clearance to combustible requirements for the

firebox outer wrapper. Combustible framing may be

in direct contact with the nailing flanges and may

be located closer than 1/2” from screw heads and

the firebox wrapper in areas adjacent to the nailing

flanges. Frame the opening to the exact dimensions

specified in the framing details of this manual.

Figure 6

Step 2. ROUTING GAS LINE

Route a ¹⁄₂" (13 mm) gas line along the inside of the right side framing as shown in Figure 7. Gas lines must be routed, constructed and made of materials that are in strict accordance with local codes and regulations.

All appliances are factory-equipped with a flex- ible gas line connector and ¹⁄₂ inch shutoff valve. (See step 6 on page 20).

Right Side
Front Corner of
Fireplace Framing
	3"
	(76 mm)
6 ¹⁄₂"
(152 mm)
Figure 7	5
	5