HeatFab Saf-T 3006 Installation & Maintenance Instructions Manual Download Page 1

Saf-T

 Thimble

Installation & Maintenance Instructions

UL Listed Through-the-wall 
Thimble Assembly

Model # 3006 adapts to 5” and 6” diameter connector pipe.
Model # 3008 adapts to 7” and 8” diameter connector pipe.

The Heat-Fab Saf-T Thimble is intended for use in conjunction 
with any residential and building heating appliance burning 
gas, liquid or solid fuels.

The Heat-Fab Saf-T Thimble is an engineered and Listed through-
the-wall thimble assembly that reduces the minimum 18 inch 
clearance to combustibles required by NFPA 211 Standard. The 
Saf-T Thimble is to be used as a thimble/wall pass thru to connect 
appliances to interior or exterior masonry chimneys.

This product is Listed by UNDERWRITERS LABORATORIES, INC. 
and bears the Mark: UL

WALL

ADAPTER

HOT AIR

WALL PROTECTOR AND

COVER SHIELD

HOT AIR

CONNECTING

PIPE

ROOM AIR

CHIMNEY

BACK PLATE AND INSULATED

THIMBLE ASSEMBLY

A major cause of chimney related fires is failure to maintain 

required clearances (air space) to combustible materials. It is of 
utmost importance that the Saf-T Thimble be installed only in 
accordance with these instructions.

Summary of Contents for Saf-T 3006

Page 1: ...reduces the minimum 18 inch clearance to combustibles required by NFPA 211 Standard The Saf T Thimble is to be used as a thimble wall pass thru to connect appliances to interior or exterior masonry ch...

Page 2: ...nts as a substitute for 5 8 fireclay liner and is UL Listed Go to www selkirkcorp com for more information on Saf T Liner The wall protector and cover shield of the Saf T Thimble should be installed o...

Page 3: ...ing a new Listed stainless steel liner system In all cases the Saf T Thimble template will be used The Template is printed on the carton in which the Saf T Thimble is packaged See Fig 1 2 Cut the temp...

Page 4: ...other combustible material is encountered within this opening it must be removed Do not frame in until step 10 Fig 4 4 In installations where a new flue thimble is required again take the template wi...

Page 5: ...s held around the periphery of the back plate by the built in spacers The framing members abutt these spacers 12 The Saf T Thimble adjusts to fit 4 8 1 2 wall structures See Fig 5 13 The inner stainle...

Page 6: ...e of withstanding the flue gas temperatures produced by the appliance We recommend the 22 gauge Saf T Pipe or equivalent A minimum 24 gauge is required by code 16 Install the wall protector and cover...

Page 7: ...resulting creosote makes for an extremely hot fire The chimney should be inspected at least once every two months during the heating season to determine if a creosote or soot buildup has occurred If c...

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