AllFuel HST AF-HST Installation Instructions Manual Download | Manualshive

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Contents

Clearances…………………………………………………………………………….....3
Permits………………………………………………………………………………..….3
Model AF-HST Applications………………………………………………………...….3
Chimney Diameter…………………………………………………………………...….3
Chimney Height……………………………………………………………………..…..3
Chimney Placement………………………………………………………………….....4
Chimney Enclosure Requirements………………………………………………..…..4
Cold Climate Installation………………………………………………………………..5
Stove Recommendations……………………………………………………………....5
Step-By-Step Installation Instructions………………………………………………...5
Ceiling Supported Installation……………………………………………………….....5
Flat Ceiling Installation……………………………………………………………….....7
Vaulted Ceiling Installation……………………………………………………………..7
Cathedral Ceiling Installation…………………………………………………………..7
Multi-Story Installation…………………………………………………………………..8
Offset Elbow Installation…………………………………………………………...….11
Extended Roof Brace Installation…………….………………………………….......13
Roof Supported Installation………………………………………………………......14
Tee-Supported Installation…………………………………………………………....19
Masonry Fireplace Installation………………………………………………………..23
Zero-Clearance Fireplace Installation……………………………………………….25
Chimney Maintenance…………………………………….…………………………..26

AllFuel HST Inc

www.allfuelhst.com

Toll Free: (833) 326-8368

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Summary of Contents for AF-HST

Page 1: ...n these instructions will void the manufacturer s warranty and may have an effect on your homeowner insurance and UL listing status Keep these instructions for future use Dear Customer Installer or End User We welcome any comments regarding matters pertaining to our AllFuel HST products If you have any questions complaints ideas or inquiries please do not hesitate to contact us directly Email sale...

Page 2: ...ld Climate Installation 5 Stove Recommendations 5 Step By Step Installation Instructions 5 Ceiling Supported Installation 5 Flat Ceiling Installation 7 Vaulted Ceiling Installation 7 Cathedral Ceiling Installation 7 Multi Story Installation 8 Offset Elbow Installation 11 Extended Roof Brace Installation 13 Roof Supported Installation 14 Tee Supported Installation 19 Masonry Fireplace Installation ...

Page 3: ...s ranges or other residential type appliances fueled by oil gas coal or wood that require a chimney system Do NOT use model AF HST chimney with forced draft positive pressure appliances CHIMNEY DIAMETER Follow the appliance manufacturer s instructions to determine chimney diameter and clearances between combustible materials and your heating appliance Never choose a chimney with an inside diameter...

Page 4: ... least 2 inches Fig 2 Multi Story Installations Consult local building codes for requirements in your area In the U S the National Fire Protection Association Standard 211 states Factory built chimneys that pass through floors of buildings requiring the protection of vertical openings shall be enclosed with approved walls having a fire resistance rating of not less than one hour when such chimneys...

Page 5: ...fficiency and safety Over firing can damage the appliance stovepipe and chimney Fuels Do not burn driftwood plastic or chemically treated wood such as railroad ties They are corrosive to your appliance stovepipe and chimney Follow the appliance manufacturer s instructions and safety manual in regards to fuels Not all appliances are equipped to burn coal Coal with a low sulfur content will reduce t...

Page 6: ... for specific framing and clearance dimensions Mark appropriate cutting lines on the ceiling around the center point Cut a square hole in the ceiling for the Ceiling Support Box to pass through Frame a level square opening centered over the hole which you have cut between the joists Fig 3 4 AllFuel HST Inc www allfuelhst com Toll Free 833 326 8368 ...

Page 7: ...nd adapter section Fig 5 Level the Support Box and secure it to the framing using at least three 8 penny nails per side min of 12 total Alternatively you may use 1 8 wood screws min of 12 total instead of nails Next secure the Trim Collar to the framing members using the provided hardware Note You will need to construct a separate frame for the Attic Insulation Shield if the chimney is not fully e...

Page 8: ... Radiation Shields and Attic Insulation Shields Locate each opening by dropping a plumb bob to the four corners of the opening below Maintain the minimum clearances and dimensions as specified in Table 1 If Elbows must be used to avoid an obstruction refer to the Offset Elbow Installation section AllFuel HST Inc www allfuelhst com Toll Free 833 326 8368 ...

Page 9: ...e the chimney penetrates through the roof The Radiation Shield is installed on the underside of the ceiling floor framing with the cylindrical tube portion of the shield pointing upward Fig 7 Use a minimum of either 1 8 penny nail or 1 8 1 wood screws per corner Refer to Table 1 for framing requirements 7 Assemble Chimney Sections Lower the female end of the first Chimney Section in the Support Bo...

Page 10: ...he Collar of the Attic Insulation Shield around the chimney and fasten it loosely with the supplied hardware Slide the Collar down to meet the Attic Insulation Shield Tighten the hardware to secure the Collar 9 Attach Roof Flashing In new construction assemble the Chimney Sections to a point above the roof then slip the Roof Flashing over the chimney On an existing roof center and install the Roof...

Page 11: ...nd any combustible materials Interior enclosures may be constructed with standard framing and sheathed with sheetrock or plywood Use Wall Brackets as needed to maintain a minimum of 2 inches of air space clearance between the chimney and combustible materials OFFSET ELBOW INSTALLATION Elbows are manufactured in 15 and 30 angles measured from the vertical A 30 Elbow is the largest that can be used ...

Page 12: ...mplete the offset Fig 12 2 Secure Offset Place the Elbow Strap s band around the angled portion of the top Elbow then tighten the nut and bolt until the clamp is firm Wrap the Elbow Strap end over an adjacent joist or rafter and secure it with at least 2 8 penny nails or 2 8 1 screws Do not add more Chimney Sections until the Elbows are supported Be sure that the chimney remains vertical If there ...

Page 13: ...kets 1 Mount Pipe Band Slip the Pipe Band around the chimney and secure by tightening the nut and bolt 2 Attach the Legs The Adjustable Legs of the assembly will adjust from 60 to 108 Secure one end of the Legs to the Pipe Band using the nuts and bolts included 1 per leg Position the Adjustable legs so they form approximately a 60 angle with the chimney and with each other Fig 13 14 Be sure that t...

Page 14: ...Support Box installation make sure that the square box portion of the Support Box can extend at least 2 below the low side of the finished ceiling Fig 15 The Support Box must remain level and the top edge of the box must cover the edge of the roof s decking material Mobile home chimney installations are roof supported Do NOT seal openings in flashing 1 Place Appliance Place the appliance in its pr...

Page 15: ... least 2 inches below the finished ceiling and rafters and extends above the ceiling to framing or decking materials that it can be nailed to Level the Support Box and slit the corners to the roofline where they extend beyond it Secure using 3 8 penny nails or 3 1 8 screws per side Fig 20 4 Complete Installation Refer to Steps 7 9 10 pages 9 11 in the Ceiling Supported Installation section to comp...

Page 16: ...eiling Fig 17 The Roof Support Bracket can support a maximum of 45 feet of AF HST total and a maximum of 20 feet below the support 1 Cut and frame the opening in the roof to provide a minimum of 2 clearance on all sides of the chimney pipe 2 Bolt on the Roof Support Brackets to the Roof Support Band using the supplied hardware Attach the Roof Support Brackets to the roof using 4 8 penny nails or 4...

Page 17: ...0 in the Ceiling Supported Installation section page 10 11 to complete the Roof Supported installation An Alternative Installation Location for the Roof Support Bracket The Roof Support Bracket may be used at the bottom of a chimney installation Fig 18 This may be useful for some basement installations Maintain a minimum of 2 clearance to combustibles at all times The AF HST chimney needs to exten...

Page 18: ...olt Secure it with the supplied hardware 4 Install a Firestop Radiation Shield below the finished ceiling or framing members Note You will need to modify the Firestop Radiation Shield by cutting down the metal cylinder to fit below the Roof Support Bracket The modified Firestop Radiation Shield can only be used when installed with the Roof Support Bracket in this type of installation Use a standar...

Page 19: ... Thimble to the outside wall with at least 4 8 penny nails or 4 8 1 screws For concrete walls a Wall Thimble is not required The hole on the wall just needs to be just large enough for the chimney pipe to pass through Install the inner half with round plate of the Wall Thimble in the inside wall surface ensuring that the shield slides into the shield of the outer half Secure the Wall Thimble to th...

Page 20: ...f 8 foot intervals and maintain at least 2 inches of clearance to combustible materials Slip the Wall Brackets around the chimney tighten the bolts adjust the clearance and fasten the Wall Brackets to the wall Once the chimney is at a minimum height specified in Figure 1 attach the Chimney Cap onto the top of the chimney by holding it by the collar and twist locking it clockwise onto the Chimney p...

Page 21: ...PG 21 7 AllFuel HST Inc www allfuelhst com Toll Free 833 326 8368 ...

Page 22: ...PG 22 AllFuel HST Inc www allfuelhst com Toll Free 833 326 8368 ...

Page 23: ... 1000 sealant Secure Anchor Plate with 4 x 2 masonry anchors Fig 26 It is very important that the Anchor Plate is level Be sure to maintain a 1 minimum clearance to combustibles from the Anchor Plate 3 Attach Chimney Twist lock the first chimney section clockwise onto the Anchor Plate 4 Finish Chimney Install the rest of the chimney as directed in the Ceiling Supported Installation section Steps 4...

Page 24: ...PG 24 AllFuel HST Inc www allfuelhst com Toll Free 833 326 8368 ...

Page 25: ...anufacturer about the use of high temperature sealants 3 Chimney sections Attach a Chimney Section to the Anchor Plate by twist locking clockwise 4 Completion Install the remainder of the chimney as instructed for a standard Ceiling Supported Installation Steps 4 through 10 page 8 11 using a Firestop Radiation Shield in the 1st floor ceiling instead of the Support Box Always maintain at least 2 in...

Page 26: ...e spark arrestor with a wire brush To remove the Chimney Cap for cleaning either twist counter clockwise and remove the entire cap or unscrew the 4 screws that attach the caps support legs to the cap base The Tee Cleanout Cap can be removed by turning counter clockwise Be sure to replace the Tee Cleanout Cap when you are finished cleaning the chimney 5 Coal To reduce corrosion in chimneys where co...

Page 27: ...ing requirements as described in these instructions and those of the appliance manufacturer 10 Warranty AllFuel HST proudly offers a limited lifetime warranty on all AF HST chimney components excluding the Chimney Cap which are warranted for 5 years For specific details refer to the printed warranty included in the Chimney Product Catalog or on our website at https allfuelhst com pages warranty Al...

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