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Unvented gas heaters are a supplemental zone heater. They are not intended to be the primary heating appliance.
Unvented gas heaters emit moisture into the living area. In most homes of average construc- tion, this does not pose a problem. In houses of extremely tight construction, additional me- chanical ventilation is recommended.
During manufacturing, fabricating and shipping various components of this appliance are treated with certain oils, films or bonding agents.
These materials may produce smoke and smells as they are burned off during the initial operation of the appliance; possibly causing headaches or eye or lung irritation. This is a normal and temporary occurance. Simply open a window to ventilate the room during the burn off period.
INSTALLING IN A VENTED APPLICATION
DAMPER STOP INSTALLATION
The damper must be permanately locked in position to prevent full closure and to provide a minimum flue opening. Various methods for locking the damper may be used but may be restricted from region to region and it is important to know the specifics that apply to your area. For your convenience a damper stop is provided with the unit and may be used where not prohibited by state or local codes.
Use the 3” adjustable bolt to adjust the damper to the correct opening, based on the enclosed chart.
Should the damper stop not fit, or provide the required per- manent opening from the Minimum Damper Opening ta- ble, have the damper cut to provide a minimum permanent opening or install an alternate stop.
MINIMUM DAMPER OPENING
(square inches)
Chimney | Masonry | Factory Built |
Height | Fireplace | Fireplace |
633.8"
831.2"
10 | 28.7" | 22.1" |
|
|
|
15 | 26.1" | 17.3" |
|
|
|
20 | 23.7" | 14.5" |
|
|
|
25 | 22.7" | 12.6" |
|
|
|
30 | 21.6" | 11.3" |
|
|
|
35 |
| 10.8" |
|
|
|
40 |
| 10.2" |
Creosote, ashes and loose paint must be cleaned from the chimney flue and firebox by a qualified chimney cleaner, before installing in a solid fuel burning fireplace. Any outside air ducts and/or ash dumps in the fireplace shall be permanently closed at time of appliance installation.
