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8390-975

Vermont Castings • Defiant® Model 1975-CAT-C Installation Manual_R8  •  02/21

Congratulations on your choice of a Vermont Castings Defiant

®

 Model 1975-CAT-C stove. With this purchase you have made 

a commitment to make the hearth a place of warmth, beauty and comfort in your home. At Vermont Castings, we share 

that joy and appreciation for the hearth. We assure you that your cast-iron Vermont Castings stove has been made with the 

utmost care and will provide you with many years of service. 

As you become acquainted with your new stove, you will find that its appearance is matched by its functionality, due to cast 

iron’s unique ability to absorb and radiate heat.

Also, Vermont Castings products are among the cleanest-burning wood stoves available today. However, clean burning 

depends on both the manufacturer and the operator. Please read this manual carefully to understand how to properly operate 

and maintain your stove.

At Vermont Castings, we are equally committed to your satisfaction as a customer. That is why we maintain an exclusive 

network of the finest dealers in the industry. Our dealers are chosen for their expertise and dedication to customer service. 

They are factory-trained and knowledgeable about every Vermont Castings product. Feel free to contact your Authorized 

Vermont Castings Dealer anytime you have a particular question about your stove or its performance.
This  manual  contains  valuable  instructions  on  the  installation  and  operation  of  your  Vermont  Castings  Defiant

®

 Model 

1975-CAT-C. It also contains useful information on maintenance. Please read the manual thoroughly and keep it as a reference.

Please read this entire manual before you install and use your new stove. Failure to follow instructions may result in property 

damage, bodily injury, or even death.

Note: Cast iron is an artisan crafted material, which is made the same way today as nearly 2000 years ago. Due to 

the intrinsic primitive nature of the casting process, part to part variation is normal and adds to the character of a 

hand built cast iron appliance.

BARCODE LABEL

HF

Serial No.

N

o

 de série:

8390-976_R1

Date of Manufacture / Date de fabrication:

2019   2020   2021   JAN   FEB   MAR   APR   MAY   JUN   JUL   AUG   SEP   OCT   NOV   DEC

Manufactured by / Fabriqué par: Hearth and Home Technologies 352 Mountain House Road, Halifax PA 17032

US ENVIRONMENTAL PROTECTION AGENCY

Certified to comply with 2020 US EPA particulate emissions standards 

at 1.3 g/hr. This wood heater contains a catalytic combustor which 

needs periodic inspection and replacement for proper operation. 

Consult the Owner’s Manual for further information. It is against Federal 

Regulations to operate this wood heater in a manner inconsistent with 

operating instructions in the Owner’s Manual.

Report #/Rapport #

0135WS043S / 0135ES043E

Tested to / Testé à:

 ASTM E2515, ASTM E2780, UL 1482-2011, ULC-S627-00, CAN/CSA B415.1

NOT APPROVED FOR USE IN MOBILE HOMES IN THE U.S. AND CANADA.

Install and use only in accordance with manufacturer’s installation and operation instructions. Contact local building or 

fire officials about restrictions and installation inspection in your area. Install only with legs provided in accordance with 

installation instructions.

WARNING:

 

Risk of flame and smoke spillage. Do not obstruct the space beneath the heater.

Fuel:

 Use with solid wood fuel only. Do not burn other fuels. Build a fire directly on hearth only. Do not elevate fire. Keep 

doors fully closed while operating.

Chimney:

 Use a minimum 6” or 8” diameter factory built high temperature (H.T.) chimney which is listed to UL-103 (2100° F) 

or 8” X 8” nominal or larger approved masonry chimney with flue liner. Inspect and clean chimney frequently - under certain 

conditions of use, creosote buildup may occur rapidly.

DO NOT CONNECT THIS UNIT TO A CHIMNEY FLUE SERVICING ANOTHER APPLIANCE

Chimney Connector: Use a minimum 6” or 8” diameter 24 gauge chimney connector. Install chimney connector at least 

30” from ceiling. Refer to local building codes and Vermont Castings Owner’s Guide for special precautions for passing a 

chimney or chimney connector through a combustible wall or ceiling.

Floor Protection: 

The Defiant does not require R value floor protection. The minimum floor protector material is 20 gauge 

sheet metal. Other floor protector materials that can be used include: Type I hearth pads, ceramic tile, stone, brick, etc. 

Protection requirements vary somewhat between the Untied States and Canada.

Optional Components:

 Fan Kit Part No. FK26. 115V 60Hz 1.1 FLA 

Replace glass only with Vermont Castings 5mm ceramic glass.
Do not remove or cover this label. 

Catalytic Combustor Part No. 30005353

CAUTION:

 Burning  of materials  other  than  the  specified  fuels  may  make  the  Catalyst  in  the combustor  inactive. The 

combustor is fragile, handle carefully.
Combustion air cannot be obstructed. Damper must be open before opening doors. Do not overfire. Glowing parts indicate 

overfiring.The  space  heater  must  be  installed  with  the  legs  provided,  attached  as  shown  in  the  installation 

instructions.

MODEL / MODÈLE: “Defiant

®

 Model 1975-CAT-C”

LISTED SOLID FUEL ROOM HEATER BURNING FIREPLACE STOVE

HOMOLOGUE POELE A COMBUSTIBLE SOLIDES

MINIMUM CLEARANCES TO COMBUSTIBLE CONSTRUCTION / MINIMUM DE DEGAGEMENT JUSQU’A LA 

CONSTRUCTION COMBUSTIBLE

Installez et utilisez uniquement conformément aux instructions d’installation et d’utilisation du 

fabricant. Contactez les responsables locaux de la construction ou les services d’incendie 

pour  connaître  les  restrictions  et  l’inspection  de  l’installation  dans  votre  région.  Installez 

uniquement avec les pieds fournis conformément aux instructions d’installation.

Avertissement:

 Risque de flammes et de fumée. Ne pas obstruer l’espace sous le radiateur.

Combustible:

 Utilisez uniquement du combustible à bois solide. Ne brûlez pas d’autres 

combustibles. Construire un feu directement sur le foyer seulement. Ne pas élever le feu. 

Gardez les portes complètement fermées pendant le fonctionnement.

Cheminée:

  Utilisez  une  cheminée  haute  température  (H.T.)  construite  en  usine  et  d’un 

diamètre minimum de 6 ”ou 8”, qui est homologuée UL-103 (2100 ° F) ou une cheminée 

en maçonnerie nominale ou supérieure approuvée de 8 ”X 8” avec conduit de cheminée. 

Inspectez et nettoyez fréquemment la cheminée - dans certaines conditions d’utilisation, une 

accumulation de créosote peut se produire rapidement.
Ne connectez pas cet appareil à un conduit de cheminée desservant un autre appareil

Raccord de cheminée:

 Utilisez un raccord de cheminée de calibre 24 minimum de 6 ”ou 

8” de diamètre. Installez le raccord de cheminée à au moins 30 po du plafond. Reportez-

vous aux codes du bâtiment locaux et au Guide du propriétaire de Vermont Castings pour 

connaître  les  précautions  particulières  à  prendre  pour  faire  passer  une  cheminée  ou  un 

connecteur de cheminée à travers un mur ou un plafond inflammable.

Protection de sol: 

Defiant ne nécessite pas de protection de plancher de valeur R. Le 

matériau de protection de plancher minimum est une tôle de calibre 20. Parmi les autres 

matériaux de protection de sol pouvant être utilisés, citons: les coussinets de foyer de type I, 

les carreaux de céramique, la pierre, la brique, etc.

Composants facultatifs:

 kit de ventilateurs (réf. FK26). 115V 60Hz 1.1 FLA

Remplacez le verre uniquement par du verre en céramique de 5 mm Vermont Castings.
Ne pas enlever ni recouvrir cette étiquette. Système de combustion catalytique N ° de pièce 

30005353

Attention:

 La combustion de matériaux autres que les carburants spécifiés peut rendre le 

catalyseur dans la chambre de combustion inactif. La chambre de combustion est fragile, 

manipulez-la avec précaution.

CAUTION: 

HOT WHILE IN OPERATION- DO 

NOT TOUCH- KEEP CHILDRENAND CLOTHING AWAY- 

CONTACT MAY CAUSE SKIN BURNS- SEE NAMEPLATE 

AND INSTRUCTIONS. KEEP FURNISHINGS AND 

OTHER COMBUSTIBLE MATERIALS A CONSIDERABLE 

DISTANCE AWAY FROM THE APPLIANCE

ATTENTION: 

CHAUD LORS 

DU FONCTIONNEMENT- NE TOUCHEZ 

PAS L’APPAREIL-GARDEZ LES ENFANTS ET 

LES VÊTEMENTS ÉLOIGNÉS- TOUT CONTACT 

PEUT ENTRAÎNER DES BRÛLURES DE LA PEAU. 

RÉFÉREZ-VOUS À LA PLAQUE SIGNALÉTIQUE ET 

AU MODE D’EMPLOI. GARDEZ LE MOBILIER ET 

LES AUTRES MATÉRIAUX COMBUSTIBLES BIEN À 

L’ÉCART DE L’APPAREIL.

*Less  than  3/4”  (19mm)  protrusion.  For  additional  types  of  installations  and  clearabces  consult  your  Owner’s 

Manual. Por autres modes d’installation et degagement supplementaires, consultz votres manual du proprietaire.

Most vertical installations require a ceiling heat shield and a flue collar heat shield to be installed. Consult 

your Owner’s Manual.

A

 = Unit to Sidewall 

 

21”

B

 = Unit to Backwall 

 

15”

C

 = Chimney Connector to Sidewall 

32”

D

 = Chimney Connector to Backwall 

17”

E

 = Unit to Adjacent Wall   

5”

F

 = Sides 

 

 

6”

G

 = Front to Glass 

 

16”

H

 = Rear 

 

 

6”

A

 = Entre le mur lateral et l’appareil 

533mm

B

 = Entre le mur arriereet l’appareil 

381mm

C

 = Entre le tuyau et le mur lateral 

813mm

D

 = Entre le tuyau et le mur arriere 

432mm

E

 = Entre le mur adjacent et l’appareil 

127mm

F

 = Côtés   

  

203mm

G

 = Devant, par rapport au verr   

457mm

H

 = Arrière   

       

203mm

LABEL TICKET

ECO:

89916

LABEL SIZE:

4.25” H x 15.75” W

PART # / REV:

8390-976

ADHESIVE:

ORIGINATOR:

Spidlet

MATERIAL:

24 Gauge Aluminum

DATE:

05/23/19

INK:

Black and Red

(4) Holes = .156 x .250

Corners .062

Barcode label must have the serial number on it. The 

barcode label must be able to read Code 39 Full ASCII.

352 Mountain House Road

Halifax, PA 17032

E

E

A

B

C

D

G

F

H

F

MINIMUM FLOOR 

PROTECTION

Made in U.S.A. of US and imported parts.

Fabriqué aux États-Unis-d’Amérique par des pièces d’origine américaine et pièces importées.

Serial No.

S A

M P

L E

Test Lab & Report No.

Model Name

Mfg. Date

US ENVIRONMENTAL PROTECTION AGENCY

Certified to comply with 2020 particulate emission standards 

using crib wood
Please read this entire manual before you install and use 

your new stove. Failure to follow instructions may result in 

property damage, bodily injury, or even death.

Summary of Contents for Defiant 1975T-CAT-C

Page 1: ...nd use of this wood burning room heater Failure to follow these instructions could result in property damage bodily injury or even death Do not store or use gasoline or other flammable vapors and liqu...

Page 2: ...ot be obstructed Damper must be open before opening doors Do not overfire Glowing parts indicate overfiring The space heater must be installed with the legs provided attached as shown in the installat...

Page 3: ...Fan Kit Installation 21 J Installing Removing Catalyst 21 4 Smoke Alarm Safety Tips A Smoke and CO Detectors 22 B Safety Tips 22 5 Operation A Air Controls 23 B Damper Adjustment 23 C Conditioning Yo...

Page 4: ...birth defects or other reproductive harm For more information go to www P65Warnings ca gov Proposition 65 Warning Fuels used in gas woodburning or oil fired appliances and the products of combustion o...

Page 5: ...nsions Figure 1 1 Drawing Not to Scale 32 3 8 822mm 28 7 8 733mm 31 1 2 800mm 5 1 8 130mm 19 483mm 1693 Defiant dimensions 1 02 29 7 8 759mm 23 5 8 600mm 19 483mm 26 660mm C L 28 7 8 733mm Rear Ventin...

Page 6: ...ure to follow these installation instructionsmayresultinadangeroussituation including a chimney or house fire Follow all instructions exactly and do not allow makeshift compromises to endanger propert...

Page 7: ...x 203 mm and into a round flue with nominal flue of 6 152 mm Whatever the flue collar size this appliance may be vented into larger chimneys as well However chimneys with liners larger than 8 x 12 203...

Page 8: ...NOTE Special slip pipes and thimble sleeves that form telescoping joints between sections of chimney connector are available to simplify installations They often eliminate the need to cut individual...

Page 9: ...ch until it is flush with the inner flue wall Do not extend it into the actual flue passage as this could interfere with the draft The thimble sleeve should protrude 1 2 25 50 mm into the room Use fur...

Page 10: ...le wall high temperature chimney with an inside diameter the same as the chimney connector at least one inch of solid insulation and a minimum of 9 229 mm air space between the outer wall of the chimn...

Page 11: ...t require R value floor protection The minimum floor protector material is 20 gauge sheet metal Other floor protector materials that can be used include Type I hearth pads ceramic tile stone brick etc...

Page 12: ...iance is installed in a corner and no shield is used the corners of the stove top must be at least 5 127 mm from nearby walls Clearances may be reduced only by means approved by the regulatory authori...

Page 13: ...or less from the face of a fireplace must have a minimum clearance of 22 554 mm measured from the stove s top side edge If the trim extends more than 3 4 19 mm it is subject to the requirements for w...

Page 14: ...Clearances Unprotected NFPA 211 Protected A Mantel Trim 41 1041 mm 29 737 mm B Top Trim 28 711 mm 21 533 mm C Side Trim 14 356 mm 14 356 mm D Side Wall 21 533 mm 11 280mm Figure 2 13 Maintain clearanc...

Page 15: ...ing is required for all installations of the Defiant Stove Clearance Unprotected Surface No Connector Heat Shield Protected Surfaces1 with Connector Heat Shield Stove Installed Parallel to Wall Stove...

Page 16: ...Stove Installed Parallel to Wall Stove Installed Parallel to Wall For use with either 6 or 8 flue collar chimney connector E F D D D ST855a Defiant 2n1 Clearance Diagrams D A B L M O O K H K I P N A...

Page 17: ...for installations with either 6 or 8 flue collars Double Wall Connector Side A Rear B Corner C Side D Rear E Corner F 36 1 2 927 mm 21 533 mm 16 406 mm 20 1 2 521 mm 9 229 mm 16 406 mm ST511 Defiant...

Page 18: ...allation vertical chimney connector two wall shields Reduced clearances for both rear and side walls Wall shields may meet at corner if desired Shielding for connector is centered behind connector Fig...

Page 19: ...o the four hex bolts previously installed into base Figure 3 4 The outside air cutout hole should be toward the rear of the stove 3 Attach the heat shield sides by passing the slots over the bolt head...

Page 20: ...he primary air thermostat handle is the smaller of the two black handles Secure the handle to the stub on the right side of the stove with an 8 32 x 2 slot head machine screw Figure 3 7 WARNING The fl...

Page 21: ...rear edge of the heat shield 6 Fan will not operate until stove reaches approximately 109 F 7 Plug blower cord into a grounded outlet Do not remove ground prong from plug Route power cord to avoid hea...

Page 22: ...If you install a detector in the same room locate it as far away from the stove as possible B Safety Tips Conveniently locate a Class A fire extinguisher to contend with small fires Be sure the fire...

Page 23: ...it can be further burned before passing up the chimney Figure 5 3 The damper should always be either fully open or fully closed There are no intermediate positions When closing the damper be sure to p...

Page 24: ...temperature One method of reducing emissions during a cold start up is the use of a top down kindling procedure In this place larger pieces of kindling on the bottom of the kindling pile followed by s...

Page 25: ...wood with below 14 moisture content This may result in continuous very high temperatures in the secondary combustion area and damage the combustor Never kindle a fire with colored paper or paper that...

Page 26: ...a safe distance from the heater and keep it out of the areas around the heater used for refueling and ash removal Surface Thermometer is a Valuable Guide to Operation An optional surface thermometer...

Page 27: ...be moved from right to left F Ash Disposal IMPORTANT Check the level of ash in the ash pan before reloading the stove If the ash level is close to the top edge of the pan empty the pan according to th...

Page 28: ...se fire Empty the ash pan regularly typically every one to three days The frequency will vary depending on how you operate your appliance ash will accumulate faster at higher heat outputs Removed ash...

Page 29: ...common wisdom tells us that a taller flue draws better than a short one This isn t necessarily so If a chimney is tall enough to meet the safety requirements of the 2 3 10 foot rule then adding more h...

Page 30: ...d performance and year of reliable heating Single Venting Each airtight stove requires its own flue If an airtight stove is vented to a flue that also serves an open fireplace or a leakier stove it s...

Page 31: ...accumulates on the glass surface should be removed regularly to prevent etching To clean the glass follow this procedure Be sure the glass is completely cool Clean the glass with water or a cleaner ma...

Page 32: ...se securely to prevent accidental opening and should close tightly to prevent air from leaking into the fire chamber The door handle will be positioned vertically when the door is closed Over a period...

Page 33: ...s unless the involved parts are disassembled and then put back together If this is the case the job should be done only by a qualified service technician 5 16 diameter gasket seals the following parts...

Page 34: ...ct or clean the chimney yourself contact your local Vermont Castings dealer or a professional chimney sweep Maintenance Schedule The Stove Daily Clear any ash build up from around the air holes and co...

Page 35: ...ity of your fuel In warm weather draft is weaker than it is in colder winter weather and fires can burn sluggishly Small hot fires are a good solution under these conditions Burning green insufficient...

Page 36: ...by fly ash deposits on the catalytic element However continue the inspections of the chimney system for a few weeks to ensure that proper performance continues If you continue to find a significant cr...

Page 37: ...ica Brown 1979 CAT C Bordeaux 1980 CAT C Twilight 1975T CAT C Classic Black w Transition Doors 9 80 21 20 17 19 16 18 10 11 2 13a 14 15 13b 63 58 32 59 3 36 29 81 39 40 47 38 12 45 37 31 50 51 52 55 7...

Page 38: ...e Quadrant Left 30002399A 11 Griddle Quadrant Right 30002401A 12 Griddle 30005257A 13 Complete Griddle Handle Assembly 30002775 Y 13a Griddle Handle Wood 1600661 Y 13b Griddle Handle CRS BN1 30002715...

Page 39: ...r Set SRV30002810 Bolt 5 16 18 x 1 Pkg of 12 27887 12 Nut 5 16 18 x Pkg of 12 SRV8787 007 12 38 Door Handle Bracket 30002844 39 Bottom 30005240A 40 Ashlip Classic Black 30002811A Biscuit SRV30002870 B...

Page 40: ...asket 1 00 30002422 61a Left Door Shell Enamel Parts Classic Black 30002813A Biscuit SRV30002876 Bordeaux SRV30006703 Majolica Brown SRV30004842 Twilight SRV30007132 Left Door Sub Assembly Shell Ename...

Page 41: ...olica Brown 30004839 Twilight 30007134 67b Right Door Transition Door Enamel Classic Black 30007090A Biscuit SRV30007092 Bordeaux SRV30007096 Majolica Brown SRV30007094 Twilight SRV30007108 Right Door...

Page 42: ...83b Bottom Heat Shield Left Wing 30005039 84 Grate Bottom 30005234A 85 Thermostat Assembly 5005470 Y 86 Thermostat Cable 5005471 Y 87 Thermostat Friction Spring Pkg of 10 1201846 10 88 Primary Air Va...

Page 43: ...er or distributor whichever occurs earlier However the Warranty coverage shall commence no later than 24 months following the date of Product shipment from HHT regardless of the installation or occupa...

Page 44: ...g devices such as exhaust fans or forced air furnaces or other such causes 6 use of fuels other than those specified in the operation instructions 7 installation or use of components not supplied with...

Page 45: ...45 8390 975 Vermont Castings Defiant Model 1975 CAT C Installation Manual_R8 02 21...

Page 46: ...46 8390 975 Vermont Castings Defiant Model 1975 CAT C Installation Manual_R8 02 21 352 Mountain House Road Halifax Pa 17032 www vermontcastings com...

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