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07/03

35035 Rev D

21

STS-42 INSTALLATION INSTRUCTIONS

Note: 

Save and pass this instruction manual to subsequent home owners. The information

provided  is  intended  to  notify  and  warn  them  about  making  unsafe  future  modifications

such as the addition of shelves or the use of unauthorized parts and repairs.

G. OPERATING INSTRUCTIONS

2. Flue Damper

The flue damper must be in a full open position, and is

operated by moving the handle up toward the top of

the  fireplace.  Before  lighting  the  fire,  verify  this  by

looking  up  from  the  inside  of  the  fireplace. Always

operate  this  fireplace  with  the  damper  fully  open.

Please  note:  down  drafts,  obstructions,  damaged  or

poor (wet) fuels can cause smoke spillage.

WARNING!

Care must be taken when burning this fireplace. Wind and wind gusts can cause sparks to be blown out of the

hearth area of the fireplace and pose a fire hazard to any combustible material they come in contact with. Do

not operate this fireplace when it is windy. If the wind becomes a problem when the fireplace is in use, close

the glass doors and allow the fireplace to go out. Be certain to check that no sparks or embers have escaped

from the fireplace hearth area.

Note: 

Some discoloration may appear over time.

1. General Information

Fireplaces, as well as other woodburning appliances,

have been used safely for many years. It has been our

experience that most problems are caused by improper

installation and operation of the fireplace. Make certain

that installation and operation of the fireplace system

is in accordance with these instructions.
It  is  extremely  important  that  the  fire  be  supervised

whenever  the  fireplace  is  in  use.  It  is  also

recommended that an annual inspection be performed

on the fireplace system to determine if the flue system

needs to be cleaned, or as in the case of any appliance,

if minor repairs are required to maintain the system in

top operating condition.
This factory built fireplace is intended for use with either

solid fuel (firewood) or a decorative gas appliance that

has  been  tested  and  listed  to  the 

Standard  for

Decorative  Gas  Appliances  for  Installation  in

Vented  Fireplaces, ANSI  Z21.60

.  When  operating

your fireplace, the flue damper must be in the open

position.
This fireplace was not tested and listed for use with an

unvented gas log heater. Do not install an unvented

gas log heater in this fireplace and operate it with the

flue damper in the closed position unless the unvented

gas log heater has been specifically tested and listed

for use in this fireplace by Underwriters Laboratories

Inc.

Use of an unvented gas log heater in this factory

built  fireplace  may  create  a  fire  hazard  that  can

result in a structure fire.

Summary of Contents for STS-42

Page 1: ...ge Refer to this manual For assistance or additional information consult a qualified installer service agency or the gas supplier INSTALLATION OPERATING INSTRUCTIONS STS 42 OUTDOOR WOODBURNING FIREPLA...

Page 2: ...ended In the event the home is unusually tightly sealed the optional combustion air kit may not provide all the air required to support combustion Hearth Home Technologies is not responsible for any s...

Page 3: ...he illustrations and diagrams used throughout these installations instructions are not drawn to scale B DESCRIPTION OF THE FIREPLACE SYSTEM Figure 1 Typical Fireplace System A LISTINGS AND CODE APPROV...

Page 4: ...a l B w e i V r a e l C s r o o D s s a l G d l o f i B B 2 4 8 1 M D s s a r B d e h s i l o P w e i V r a e l C s r o o D s s a l G d l o f i B S 2 4 8 1 M D l e e t S s s e l n i a t S w e i V r a...

Page 5: ...z i l i b a t S y e n m i h C 0 3 1 1 L S 0 3 n r u t e R t e s f f O y e n m i h C 8 3 5 S F t h g i a r t S p o t s e r i F 0 4 5 S F 0 3 p o t s e r i F 0 1 S A 4 2 d l e i h S n o i t a l u s n I...

Page 6: ...n e l h t g n e l e v i t c e f f E s a h t i r e t f a t r a p y e n m i h c r e h t o n a o t d e p p a n s n e e b SL11 Chimney Stabilizer SL1130 Offset Return RF570 Roof Flashing Flat to 6 12 Pit...

Page 7: ...v D 7 STS 42 INSTALLATION INSTRUCTIONS LDS33 3 x 3 LDS46 4 x 6 Decorative Shroud TR11 Round Termination Cap TR11T Round Telescoping Termination Cap ST1175 Square Termination Cap CT56 Chase Top CAK5A C...

Page 8: ...lt if it is installed inside of the structure Figure 2 shows two typical installations Figures 3 and 4 show two typical installations assuming an outside air kit is being used Therefore an allowance m...

Page 9: ...x 423 8 tall The finished cavity depth must be no less than 241 8 Figure 5 shows a typical framing using 2 x 4 lumber of the fireplace assuming combustible materials are used All required clearances...

Page 10: ...far the chimney needs to be shifted to enable it to avoid the overhead obstacle See Figure 7 dimension A to determine chimney sections required to achieve the needed shift 2 After determining the offs...

Page 11: ...e installation d Determine the number of firestop spacers stabi lizers roof flashing etc required to complete the fireplace installation 2 Chimney Height Requirements above roof line a Major building...

Page 12: ...instructions for framing on pages 8 and 9 Slide the fireplace into position Be sure to provide the minimum air clearance at the sides and back of the fireplace assembly 2 Placing the Protective Metal...

Page 13: ...ntil the top section meets the stop bead on the lower section The inner flue is placed to the inside of the flue section below it The outer casing is placed outside the outer casing of the chimney sec...

Page 14: ...ulation shield should be installed when there is a possibility of insulation coming into contact with the factory built chimney system The insulation shield is installed by positioning it over the ver...

Page 15: ...ppermost top section of pipe must extend 6 above the top of the chase collar to allow installation of the storm collar and termination cap See Figure 14 Figure 14 Installing a TR11 Round Termination C...

Page 16: ...a standard feature with this fireplace and is required for safe operation Installation must be done at the time of initial construction The cooling air inlet tubes must be a minimum of 72 above the ba...

Page 17: ...in this specific model fireplace Unless the unvented gas log heater is tested and listed for use in this factory built fireplace a fire hazard may be created that can result in a structure fire 13 Ga...

Page 18: ...st be installed with all fireplaces to protect the combustible floor in front of the fireplace from both radiant heat and sparks The construction of and materials used for a hearth extension are shown...

Page 19: ...te slate glass or plasters or any combination thereof c Noncombustible Sealant Material Sealants which will not ignite and burn General Electric RTV103 Black or equivalent Rutland Inc Fireplace Mortar...

Page 20: ...fire WARNING Detailed instructions for installation of the chase top storm collar and termination cap are packaged with these parts To avoid danger of fire all instructions must be strictly followed i...

Page 21: ...n Fireplaces as well as other woodburning appliances have been used safely for many years It has been our experience that most problems are caused by improper installation and operation of the firepla...

Page 22: ...ogies glass doors may be used See Figure 24 for proper glass door operation 4 Grate The factory installed integral grate must be used to hold the logs from falling out of an open fireplace and to allo...

Page 23: ...s on the quality of the firewood you use All seasoned wood regardless of species contains about 8 000 BTU s per pound and hardwoods have a greater density than soft woods A piece of hardwood will cont...

Page 24: ...e fireplace expansion and contraction will cause minor cracking of the refractory This is normal unavoidable and will not affect the perfor mance of the fireplace If the cracks become large enough tha...

Page 25: ...If creosote has accumulated it should be removed to reduce the risk of a chimney fire 3 Chimney Cleaning If you do detect a buildup of creosote contact a qualified chimney sweep or clean it yourself...

Page 26: ...26 35035 Rev D 07 03 STS 42 INSTALLATION INSTRUCTIONS Homeowner s Notes...

Page 27: ...3 Flue 21 Framing 9 Freestanding Installation 8 Fuel 23 G Gas Codes 17 21 Gas Log Lighter Provisions 17 General Information 21 Glass Doors 19 Grate 22 H Hearth Extension 18 Positioning 19 I Installati...

Page 28: ...4 During the first six 6 months after installation HHT shall at its option replace or repair the glass doors and any electrical components if operation is faulty This does not include glass panels bro...

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