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Prescott Series Installation Manual 

Page 13 

VENTING: TERMINATION REQUIREMENTS

  

In determining optimum vent termination, carefully evaluate external conditions especially when 
venting directly through a wall. Since you must deal with odors, gases, and fly ash, consider 
aesthetics, prevailing winds, distances from air inlets and combustibles, location of adjacent 
structures and any code requirements. 

1.  Exhaust must terminate above combustion air inlet elevation. 

2.  Do not terminate vent in any enclosed or semi-enclosed area, (i.e. Carports, garage, attic 

crawl space, etc.) or any location that can build up a concentration of fumes. 

3.  Vent surfaces can get hot enough to cause burns if touched by children. Non-combustible 

shielding or guards may be required 

The type of installation must first be considered before determining the exact location of 
the venting termination in relation ship to doors, window, cavities or air vents. See figures 
4a and 4b below. 

a.

 

Without

 Outside Air connected to the unit. For These types of installations please refer 

to the dimensions listed below in figure 4a. 

 
 
 
  
 
 
 
 
 

 
 
 
 

 

 

 

Figure 4a 

 
4’ (1.2 m) BELOW 

 

 

 a door, window, cavity, or air vent  

Or             
4’ (1.2 m) HORIZONTALLY FROM  

 

 a door, window, cavity, or air vent     

Or                                   
1’ (305 mm) ABOVE                            

 

 a door, window, cavity, or air vent 

 
 
 

Summary of Contents for PRESCOTT EXL

Page 1: ...al PL Vent Components 5 Venting Determining Materials 6 Venting Stove Outlet Dimensions 7 8 Venting Through Combustibles 9 Venting Into an Existing Chimney 11 Venting Hearth Mount 12 Venting Termination Requirements 13 14 Combustion Air 16 Electrical Connections 17 Floor Protection 18 Clearances to Combustible Materials 19 Mobile Home Installation 21 Thermostat Installation and Operation 23 208 ...

Page 2: ... any local installation restrictions and inspection requirements DEFINITION OF STOVE The word stove as used in this manual is interpreted to mean a pellet burning freestanding stove insert or zero clearance fireplace unless otherwise noted SAFETY TESTING The stove has been independently tested and listed by Warnock Hersey Laboratories in accordance with the proposed ASTM Standards and the applicab...

Page 3: ...t least 3 screws and correctly installed Follow vent manufacturer s instructions Seal all joints with high temperature silicone to create an airtight seal 3 Any plated areas should be cleaned thoroughly with a glass cleaner such as Windex and a soft cloth just before lighting the first fire This will remove fingerprints and oils that may cause a permanent stain or mark on the gold plating the firs...

Page 4: ...scott EXL models are approved for CONVENTIONAL and MOBILE HOME installations as a FREESTANDING stove The stoves may also be installed on the Hearth in front of a fireplace and vented through the chimney of the fireplace WARNING The stove must not be installed in a sleeping room Prescott EXL ...

Page 5: ...DuraVent Energy Vent LTD James A Ryder and Selkirk Metalbestos and is carried by many local pellet stove dealers In this manual approved venting will be referred to a PL vent or Single wall vent All single wall vent adaptors must be stainless steel NOTE TYPE B GAS VENT MUST NOT BE USED IN ANY PELLET STOVE INSTALLATION Examples of venting system components follow High temperature ceramic roping red...

Page 6: ... TYPICAL PL VENT COMPONENTS RAIN CAP VERTICAL OR WALL THIMBLE CHIMNEY SUPPORT BRACKET HORIZONTAL ADAPTER ADJUSTABLE LENGTH SINGLE TEE SINGLE REDUCTION DOUBLE TEE PIPE w TEE CAP TEE w TEE CAP w TEE CAP PIPE ADAPTER INCREASER 450 ELBOW 900 ELBOW ...

Page 7: ...TY SPECIFICATIONS QUANTITY OF MATERIALS 1 Installing the vent system with a minimum of three feet 3 of vertical rise above the stove exhaust port will provide some Natural Draft FAILURE TO PROVIDE THE NATURAL DRAFT THAT RESULTS FROM A VERTICAL RISE MAY RESULT IN SMOKE BEING RELEASED INTO THE HOUSE WHEN ELECTRICITY TO THE UNIT IS INTERRUPTED WHILE BURNING OR SMOLDERING PELLETS REMAINS IN THE BURN G...

Page 8: ...ntal installation over 12 is NOT RECOMMENDED D Less than 15 vertical 3 Acceptable E Over 15 vertical 4 Required F Above 4000 elevation 3 or 4 Acceptable Note Four 4 inch vent may be used in all installations If in doubt use 4 vent Figure 1 REAR VIEW A Width of stove B Height of stove C Center of intake tube from floor D Side of stove to center of intake tube E Side of stove to center of exhaust F ...

Page 9: ...anual Page 8 Figure 1A REAR VIEW OF PRESCOTT EXL A Width of stove D Center of stove to center of intake tube B Height of stove E Center of stove to center of exhaust C Center of intake tube from floor F Center of exhaust from floor ...

Page 10: ...5 degree elbow I PL Vent Fire Stop B Thimble J Roof Flashing C PL Vent Section K Storm Collar D Stove Exhaust Pipe L Rain Cap E Air Intake Damper M Outside Air Pipe F Air Vent Damper N PL Vent Section G 90 degree elbow O Wall Band H 45 degree elbow P Outside Air Inlet Cover 1 PL vent may be installed directly through a combustible wall ceiling or roof according to PL vent manufacturer s instructio...

Page 11: ... 1 When terminating the exhaust system under the house eaves Figure 4 the end of the vent pipe system must be at least twelve inches 12 from the wall and 24 below the eave a 90 degree G and a 45 degree elbow may be used H 2 When extending through the roof Figure 5 install a PL vent fire stop I in the ceiling or in the eaves if the eaves are boxed in Install roof flashing J and a storm collar K Ext...

Page 12: ...e cap that reduces the outlet of the chimney to the size of the liner is required Extend the exhaust vent above the chimney chase cap and finish it off with a rain cap A single wall liner may need to be insulated to maintain adequate exhaust temperatures in the vent system Note Outside Chimneys frequently are difficult to keep warm if in doubt insulate the liner Figure 6 Figure 7 Venting into Maso...

Page 13: ...tional Figure 8 Venting to the Top of Chimney When installing as a hearth mount stove into a fireplace the unit must either be relined terminating above the chimney chase top or positively connected to the existing chimney system using a block off plate D An approved flex liner of PL vent must be used A chimney system with known drafting problems may require a liner which may also need to be insul...

Page 14: ...arports garage attic crawl space etc or any location that can build up a concentration of fumes 3 Vent surfaces can get hot enough to cause burns if touched by children Non combustible shielding or guards may be required The type of installation must first be considered before determining the exact location of the venting termination in relation ship to doors window cavities or air vents See figur...

Page 15: ...d from the outside atmosphere and all flue gases are discharged to the outside atmosphere Special Venting Arrangements are listed in NFPA 211 31 10 7 1 2 The Vent Terminal of a Direct Vent Appliance with an input of 10000 BTU Hr or less shall be located at least 6 from any opening into a building and such an appliance with an input of over 10000 BTU Hr but not over 50000 BTU Hr shall not be locate...

Page 16: ...n point 3 915mm FROM a gas meter regulator assembly 2 610 mm FROM any adjacent combustibles such as Adjacent buildings fences protruding parts of the structure roof eaves or overhangs plants shrubs etc Note Certain local code restrictions may apply Check with Local Officials first before installing FIGURE 10 VENTING TERMINATION CLEARANCE REQUIREMENTS SIDE VIEW All dimensions show MINIMUM distances...

Page 17: ... a hood Note The outside air pipe must terminate above the maximum snow line and below the exhaust vent outlet 2 Outside air may be drawn from a semi enclosed attic or crawl space or any semi enclosed space Take care not to draw cold air past water pipes that may freeze 3 Increase the outside air pipe diameter to 3 for runs over ten 10 feet and elevation over 4 000 feet Note Long runs should be av...

Page 18: ...al outlet The current requirement is approximately 3 amps 5 amps with igniter running 2 The power cord must be carefully routed to avoid contact with any hot or sharp exterior surface areas of the stove Figure 11B Any stove installed in a mobile home must be electrically grounded to the steel chassis of the home and bolted to the floor in Model compliance with and according to building code requir...

Page 19: ...stalled on a non combustible protective pad Hearth models may be placed directly on the noncombustible hearth of a fireplace Floor protection is required for the area directly under the stove and extending 6 beyond the front of the stove as shown Figure 12 Floor protection Top View ...

Page 20: ...4 13 Corner of stove 4 13 Vent pipe 3 15 Stove to mantel 12 15 Floor protection Front from faceplate 6 12 Floor protection Sides back of stove 0 16A Alcove Vertical to Combustibles 16 16B Alcove Sides 4 16A 16B Alcove Back 4 Figure 13 Top View Figure 14 Top View Clearances corners of stove Clearances Sides and Back 4 Needed to slide out the control board ...

Page 21: ...ve Installation top View Figure 16B Although 4 is the minimum clearance to the sides of the stove this is not recommended due to the need for access into the inside of the stove for the maintenance as spelled out in the Operations Manual Please read the section covering Daily Periodic and Yearly Maintenance in the Operations Manual ...

Page 22: ... addition to all previously detailed requirements mobile home installations must observe the following Figure 17 1 WARNING DO NOT INSTALL IN A SLEEPING ROOM 2 WARNING COMBUSTION AIR MUST COME FROM THE OUTSIDE OF THE MOBILE HOME FAILURE TO DO SO MAY CREATE NEGATIVE PRESSURE WITHIN THE MOBILE HOME AND COULD DISRUPT PROPER VENTING AND OPERATION OF THE PELLET STOVE 3 CAUTION THE STRUCTURAL INTEGRITY O...

Page 23: ...r at location where PL vent exits the structure 7 Check any other local building codes or other codes that may apply 8 Do no use components other than those specified for use with this unit Refer to pages 4 5 6 and 7 9 Floor protection requirement must be followed precisely 10 PL Vent must be used for exhaust venting Single wall vent is not allowed Follow PL Vent manufacturer s installation direct...

Page 24: ...ween the T Stat Mode and the SmartStat Mode We recommend using the Fully Automatic SmartStat Mode 1 Once you have successfully lit your stove set the thermostat to your desired heating needs 2 Set the HEAT ADJUST selector to a position that will effectively create a rise in room temperature above your thermostat setting The recommended heat adjust settings while using a thermostat are any position...

Page 25: ...Prescott Series Installation Manual Page 24 Notes Serial Number Date of Purchase Dealer Information Even Temp Inc P O Box 127 Waco NE 68460 EMAIL service eventempinc com WEB ADDRESS www stcroixheat com ...

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