4
2.Divide the volume of space by 50 ft 3 to determine the maximum BTU/Hr the space can support.
______ (volume of space – ft 3)/ 50 ft 3 = (Maximum BTU/Hr the space can support)
Example: 3072 ft 3 / 50 ft 3 = 61.44
or 61,440 BTU/Hr the space can support.
3.Add the BTU/Hr of all the fuel burning appli- ances in the space.
_______ | BTU/Hr | |
Gas appliance #1* | _______ | BTU/Hr |
Gas appliance #2 | + _______ | BTU/Hr |
Total = _______ | BTU/Hr | |
Example: |
|
|
32,000 | BTU/Hr | |
Gas appliance #1 | 35,000 | BTU/Hr |
(water heater) |
|
|
Total = 67,000 | BTU/Hr | |
*Do not include
4. Compare the maximum BTU/Hr the space can support with the actual amount of BTU/ Hr used.
_________ | BTU/Hr |
| (max. the space can support) |
_________ | BTU/Hr |
| (actual amount of BTU/Hr used) |
Example: |
|
61,440 | BTU/Hr |
| (max. the space can support) |
67,000 | BTU/Hr |
| (actual amount of BTU/Hr used) |
The space in the previous example is a confined space because the actual BTU/Hr used is more than the maximum BTU/Hr the space can sup- port. You must provide additional fresh air.
Your options are:
a. Rework equations adding the space of ad- joining room(s). If the extra volume provides an unconfined space, then remove door or add ventilation grills between rooms. Refer to National Fuel Gas Code, ANSI Z223.1, Section 5.3.
b. Vent room directly to the outdoors. Refer to National Fuel Gas Code, ANSI Z223.1, Sec- tion 5.3.
c. Install a lower BTU/Hr heater, such as a 24,000 BTU/Hr, to make the area an uncon- fined space.
If the actual BTU/Hr used is less than the maximum BTU/Hr the space can support, then the space is an unconfined space. You will need no additional fresh air ventilation for an uncon- fined space.
WARNING: IF THE AREA IN WHICH THE HEATER MAY BE OPERATED IS SMALLER THAN THAT DEFINED AS AN UNCON- FINED SPACE, PROVIDE ADEQUATE COMBUSTION AND VENTILATION AIR BY ONE OF THE METHODS DESCRIBED IN THE NATIONAL FUEL GAS CODE, ANSI Z223.1, SECTION 5.3 OR APPLICABLE LOCAL CODES.
PREINSTALLATION
WARNING: BEFORE INSTALLING IN A SOLID FUEL BURNING FIREPLACE, THE CHIMNEY FLUE AND FIREBOX MUST BE CLEANED OF SOOT, CREOSOTE, ASHES AND LOOSE PAINT BY A QUALIFIED CHIM- NEY CLEANER.
Note: Illustrations shown in this manual reflect “typical” installations with nominal dimensions and are for reference only. Actual installations may vary due to individual design preferences. However, always maintain minimum clearances to combustible materials and do not violate any specific installation requirements. Refer to Fig- ures 1 through 7 for clearances.
Note: The following steps represent the normal sequence of installation. Each installation is unique, however, and might require a different sequence.
When local codes require the damper to be fixed open, a damper stop must be installed to prevent full closure of the fireplace damper and provide a minimum 29 square inch flue opening at all times. Refer to accessories for damper clamp.
If damper clamp is not available, the damper may be fixed open in the following manner. Drill a hole in the end of the damper. Screw in a bolt of sufficient size and adjust to provide the minimum 29 square inches of flue opening.
CAUTION: HEATERS CREATE WARM AIR CUR- RENTS. THESE CURRENTS MOVE HEAT TO WALL SURFACES NEXT TO HEATER. INSTALL- ING HEATER NEXT TO VINYL OR CLOTH WALL COVERINGS OR OPERATING HEATER WHERE IMPURITIES IN THE AIR (SUCH AS TOBACCO SMOKE) EXISTS, MAY DISCOLOR WALLS.
•Turn off gas supply to the fireplace or firebox.
•Position heater in fireplace or firebox.
•Connect gas line.
•Secure heater.
•Assemble logs and test flame.
•Sprinkle volcanic rock over base plate in front of and below the main burner.
Check Gas Type
This heater can only be connected to the gas type specified on the heater rating plate. This heater can not be modified in the field for a different gas type. If the gas supply differs, DO NOT INSTALL the heater. Contact your dealer to obtain the correct heater.
CLEARANCES
WARNING: DO NOT INSTALL THIS GAS HEATER:
•IN SLEEPING QUARTERS, BATH- ROOMS, A MOBILE HOME, OR A REC- REATIONAL VEHICLE.
•WHERE CURTAINS, FURNITURE, CLOTHING OR OTHER FLAMMABLE OB- JECTS ARE LESS THAN 42" FROM THE FRONT OF THE GAS HEATER.
•IN HIGH TRAFFIC AREAS.
•IN WINDY OR DRAFTY AREAS.
Ensure the minimum clearances shown in Fig- ures 1 through 7 are maintained. Left and right clearances are determined when facing the front of the heater.