Hampton Direct H25-NG1 Manual Do Utilizador

24

Hampton

®

 H25-1 Direct Vent Freestanding Gas Stove

7)  Ensure vent is vertical and secure the base 

of the fl ashing to the roof with roofi ng rails, 
slide storm collar over the pipe section and 
seal with a mastic.

8)  Install the vertical termination cap by twist 

locking it.

Notes:
 a)   For multistorey vertical installations, a 

Ceiling Fire stop (Part # 963) is required 
at the second fl oor, and any subsequent 
fl oor. Diagram 12.  The opening should 
be framed to 10 " x 10" inside dimen-
sions, in the same manner as shown in 
diagram 9. 

 b)  Any occupied areas above the fi rst fl oor, 

including closets and storage spaces, 
through which the vertical vent passes, 
must be enclosed. 

    Roof Pitch                   Minimum Vent Height

                                           Feet         Meters

fl at to 7/12 

2 

      0.61

over 7/12 to 8/12 

2 

0.61

over 8/12 to 9/12 

2 

0.61

over 9/12 to 10/12 

2.5 

0.76

over 10/12 to 11/12 

3.25 

0.99

over 11/12 to 12/12 

4 

1.22

over 12/12 to 14/12 

5 

1.52

over 14/12 to 16/12 

6 

1.83

over 16/12 to 18/12 

7 

2.13

over 18/12 to 20/12 

7.5 

2.29

over 20/12 to 21/12 

8 

2.44

3)  To install the Round Support Box/Wall Thim-

ble in a fl at ceiling, cut a 10 inch square hole 
in the ceiling centred on the hole drilled in 
Step 2. Frame the hole as shown in diagram 
9.

Hint: Apply the 
sealant (Mill-Pac 
and/or high tem-
perature silicone) 
to the outer pipe 
before connect-
i n g   t h e   i n n e r 
pipe.

4)  Assemble the desired lengths of black pipe 

and  elbows necessary to reach from the 
appliance adapter up though the Round 
Support Box. Insure that all pipes and elbow 
connections are in the fully twist-locked 
position and sealed.

 
 

Galvanized pipe and elbows may be utilized 
in the attic as well as above the roofl ine.  
The galvanized fi nish is desirable above 
the roofl ine due to its higher corrosion 
resistance.

 

Continue to add pipe sections through the 
fl ashing until the height of the vent cap 
meets the minimum height requirements 
specifi ed in diagram 11 or local codes. 

 

Note that for steep roof pitches, the vertical 
height must be increased.  A poor draft, or 
down drafting can result from high wind 
conditions near big trees or adjoining roof 
lines, in these cases, increasing the vent 
height may solve the problem.

5)  Cut a hole in the roof centred on the small 

drilled hole placed in the roof in Step 2. The 
hole should be of suffi cient size to meet 
the minimum requirements for clearance 
to combustibles of 1-1/4". Slip the fl ashing 
under the shingles (shingles should overlap 
half the fl ashing) as per diagram 10.

6)  Continue to assemble pipe lengths.