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© 2023 United States Stove Company

piece ends. If cracks are radiating in all directions from 

the center then the wood should be dry enough to burn. 

If your wood sizzles in the fire, even though the surface 

is dry, it may not be fully cured and should be seasoned 

longer. It is EXTREMELY IMPORTANT that you use DRY 

WOOD only in your wood stove. The wood should have 

dried for 9 to 15 months, such that the humidity content 

(in weight) is reduced below 20% of the weight of the log. 

It is very important to keep in mind that even if the wood 

has been cut for one, two, or even more years, it is not 

necessarily dry, if it has been stored in poor conditions. 

Under extreme conditions, it may rot instead of drying. 

This point cannot be overstressed; the vast majority of 

the problems related to the operation of a wood stove is 

caused by the fact that the wood used was too damp or 

had dried in poor conditions. These problems can be:
•  ignition problems
•  creosote build-up causing chimney fires
•  low energy yield
•  blackened windows
•  incomplete log combustion

Do not burn manufactured logs made of wax 

impregnated sawdust or logs with any chemical 

additives.

TESTING YOUR WOOD

•  When the furnace is thoroughly warmed, place one 

piece of split wood (about five inches in diameter) 

parallel to the door on the bed of red embers.

•  Adjust all air controls to there maximum settings and 

close the door. If ignition of the piece is accomplished 

within 90 seconds from the time if was placed in the 

furnace, your wood is correctly dried. If ignition takes 

longer, your wood is damp.

If your wood hisses and water or vapor escapes at 

the ends of the piece, your wood is soaked or freshly 

cut (green). Do not use this wood in your stove. Large 

amounts of creosote could be deposited in your chimney, 

creating potential conditions for a chimney fire.

POWER FAILURE

DO NOT add additional fuel after a power failure, remove 

all air filters and reduce combustion air to a minimum. 

Observe furnace closely until power is restored.

TAMPER WARNING

This wood furnace has a manufacturer-set minimum low 

burn rate that must not be altered. It is against federal 

regulations to alter this setting or otherwise operate this 

wood furnace in a manner inconsistent with operating 

instructions in this manual.

EFFICIENCIES

Efficiencies can be based on either the lower heating 

value (LHV) or the higher heating value (HHV) of the 

fuel. The lower heating value is when water leaves the 

combustion process as a vapor, in the case of woodstoves 

the moisture in the wood being burned leaves the stove 

as a vapor. The higher heating value is when water leaves 

the combustion process completely condensed. In the 

case of woodstoves this would assume the exhaust gases 

are room temperature when leaving the system, and 

therefore calculations using this heating value consider 

the heat going up the chimney as lost energy. Therefore, 

efficiency calculated using the lower heating value of 

wood will be higher than efficiency calculated using the 

higher heating value. The best way to achieve optimum 

efficiencies is to learn the burn characteristic of you 

appliance and burn well-seasoned wood. Higher burn 

rates are not always the best heating burn rates; after a 

good fire is established a lower burn rate may be a better 

option for efficient heating. A lower burn rate slows the 

flow of usable heat out of the home through the chimney, 

and it also consumes less wood.

NOTICE - INITIAL BURNS TO CURE PAINT

BECAUSE OF THE HIGH OPERATING TEMPERATURES, 

THIS APPLIANCE IS COATED WITH A SPECIAL HIGH 

TEMP PAINT WHICH REQUIRES A SERIES OF LOW TO 

MEDIUM BURNS TO FULLY CURE FOR DURABILITY 

AND A LIFETIME OF SERVICE.
Proper curing of the high-temp paint requires a series of 

three initial burns. The appliance should be allowed to 

cool off between each burn. The first two burns should 

be small fires and low temperatures (250°F) for a 

duration of 20 minutes each. The third fire should be at 

a temperature of approximately 500°F for 20 minutes. 

Provide adequate cross ventilation to clear any smoke or 

odor caused by initial firings.

Notice: Use solid wood fuel only! Do not burn garbage, 

or flammable fluids. Do not use coal. This appliance 

is not designed to accommodate the air flow (draft) 

required to properly burn coal or coal products. Do 

not elevate the fire using grates or irons. Build the fire 

directly on the firebrick.

FUELING INSTRUCTIONS

To ensure this unit produces the optimal minimum 

emissions it is critical that only well-seasoned cordwood 

is burned. Burning unseasoned wet wood only hurts 

OPERATION

Summary of Contents for Hot Blast HB1520

Page 1: ...rea CAUTION Please read this entire manual before you install or use this unit Failure to follow instructions may result in property damage bodily injury or even death Improper Installation Will Void...

Page 2: ...TOVE IN ADDITION YOU SHOULD HAVE YOUR CHIMNEY INSPECTED FOR CREOSOTE DEPOSTS MONTHLY DURING THE HEATING SEASON AND ANNUALLY INSPECTED AND CLEANED This manual describes the installation and operation o...

Page 3: ..._________________________________________ If no Date of inspection of the existing chimney system ___________________________________________________________ COMMISSIONING Confirm Hearth Pad Installat...

Page 4: ...rangement NOTE The firebricks are silicone into place to prevent damage from shipping Attempting to remove the firebricks before operation could result in damage CERAMIC FIBER BOARD CONFIGURATION Insp...

Page 5: ...ter installation the smoke curtain should swing freely back into the furnace OUTSIDE VIEW OF THE UNIT INSIDE VIEW OF THE UNIT FEED DOOR HANDLE LATCH Use the included one 1 nut and one 1 washer to secu...

Page 6: ...2 screws to secure the front cover hood to the unit as shown DISTRIBUTION BLOWERS WITH GASKETS Secure the two blowers and gaskets to the unit using the eight 8 provided 1 4 20 x 3 4 bolts JUNCTION BO...

Page 7: ...redetermined length of approximately 3 feet FILTER BOX The filter box is made up of 4 parts plus all hardware necessary for assembly Assemble the filter box sides top and bottom using twenty 20 10 A x...

Page 8: ...8 2023 United States Stove Company AIR FILTER REPLACEMENT Insert one 16 x 24 x 1 air filter not included ASSEMBLY INSTRUCTIONS...

Page 9: ...NT INJURY DO NOT ALLOW ANYONE TO USE THIS FURNACE WHO IS UNFAMILIAR WITH THE CORRECT OPERATION OF THE FURNACE CAUTION GASES THAT ARE DRIVEN FROM FRESH WOOD MUST BE BURNED OR THEY WILL ACCUMULATE AND E...

Page 10: ...supply air ductwork This furnace may be installed as a stand alone wood furnace only See installation section in this manual to ensure proper assembly installation and operation of your new furnace If...

Page 11: ...built in compliance with the specifications of the National Building Code It must be lined with fire clay bricks metal or clay tiles sealed together with fire cement Round flues are the most efficien...

Page 12: ...wall to a masonry chimney special methods are needed as explained in the Combustible Wall Chimney Connector Pass Throughs Section WARNING DO NOT CONNECT THIS FURNACE TO A CHIMNEY FLUE SERVING ANOTHER...

Page 13: ...ed 1 25 4 mm off the chimney connector by way of sheet metal support plates at both ends of chimney section Cover opening with and support chimney section on both sides with 24 gage minimum sheet meta...

Page 14: ...er on a smoke exhaust system is prohibited Do not use with a flue damper With a controlled combustion wood furnaces the draft is regulated upon intake of the combustion air in the furnace and not at t...

Page 15: ...when burning air dried seasoned hardwoods as compared to softwoods or too green or freshly cut hardwoods The following resources can assist in learning the burn characteristics of various species of w...

Page 16: ...this wood furnace in a manner inconsistent with operating instructions in this manual EFFICIENCIES Efficiencies can be based on either the lower heating value LHV or the higher heating value HHV of t...

Page 17: ...the furnace the wall thermostat should be set to its MAX setting so that the combustion fan is ON Start the fire with approximately 12 lbs of kindling which will be several small strips of wood 1 1 2...

Page 18: ...r in how well the thermostat can maintain it s set temperature VISIBLE SMOKE The amount of visible smoke being produced can be an effective method of determining how efficiently the combustion process...

Page 19: ...CHIMNEYFOR CREOSOTE DEPOSITS AT LEAST MONTHLY DURING THE HEATING SEASON ANY ACCUMULATIONS SHOULD BE REMOVED COMPLETE CHIMNEY INSPECTIONS AND CLEANING SHOULD BE CONDUCTED ANNUALLY TYPICALLY THIS TASK S...

Page 20: ...OR EVEN HOUSE FIRE MAY RESULT It is recommended that you change the door gasket which makes your furnace door air tight once a year in order to ensure good control over the combustion maximum efficien...

Page 21: ...T FEW FIRES BUILD SMALL FIRES AT FIRST THE METAL USED IN CONSTRUCTION OF THE FURNACE AND DUCT WORK HAS A LIGHT COATING OF OIL THIS COULD GIVE OFF SMOKE AND OR ODOR FROM REGISTERS WHEN FURNACE IS USED...

Page 22: ...22 2023 United States Stove Company ELECTRICAL INSTALLATION...

Page 23: ...NTY To order parts Call 1 800 750 2723 Ext 5051 or Email to parts usstove com Key Part Description Qty 1 88126 DOOR GASKET 5ft 2 892686 DOOR GLASS 1 3 88087 GLASS GASKET 30 4 80697 MOISTURE METER 1 5...

Page 24: ...ription Qty 1 88353 BAFFLE BLANKET 2 2 893927 TOP BAFFLE SET OF 2 1 3 893928 BOTTOM BAFFLE SET OF 2 1 4 88360 C CAST LARGE 10 5 88362 C CAST SMALL 2 6 88361 C CAST MEDIUM 2 7 893792 TRUNK ASSEMBLY 1 8...

Page 25: ...______ Engineer Name _____________________________________ License No _________________________________________ Company ___________________________________________ Telephone No _______________________...

Page 26: ...26 2023 United States Stove Company NOTES...

Page 27: ...2023 United States Stove Company 27 NOTES...

Page 28: ..._________________ Nom de l ing nieur ________________________________ No de licence ______________________________________ Entreprise ________________________________________ N de t l phone __________...

Page 29: ...EUR JEU DE 2 1 3 893928 D FLECTEUR INF RIEUR JEU DE 2 1 4 88360 C CAST GRANDE 10 5 88362 C CAST PETIT 2 6 88361 C CAST MOYEN 2 7 893792 ASSEMBLAGE DU TRONC 1 8 88366 JOINT DE COFFRE 1 9 893806 DISPOSI...

Page 30: ...z un courriel parts usstove com R f rence N de pi ce Description Qt 1 88126 JOINT D TANCH IT DE PORTE 5 pi 2 892686 VITRE DE PORTE 1 3 88087 JOINT D TANCH IT EN VERRE 30 po 4 80697 HUMIDIM TRE 1 5 807...

Page 31: ...R GLAGE DES POINTEURS L I M I T E D U VE N T I L A T E U R A R R T A R R T M A R C H E CONTR LE DE LA LIMITE LIGNE DE LIMITE LIGNE DE VENTILATION Honeywell JAUGE EN BANDES CAVALIER DE COUPURE POUR LA...

Page 32: ...ES D ABORD DE PETITS FEUX LE M TAL UTILIS DANS LA CONSTRUCTION DE LA FOURNAISE ET DU R SEAU DE GAINES A UNE L G RE COUCHE D HUILE CELA POURRAIT D GAGER DE LA FUM E ET OU UNE ODEUR DES REGISTRES LORSQU...

Page 33: ...NCENDIE Il est recommand de changer le joint d tanch it de la porte assurant l tanch it la porte de la fournaise une fois par ann e afin de vous assurer un bon contr le sur la combustion une efficacit...

Page 34: ...CR OSOTE DANS VOTRE CHEMIN E AU MOINS UNE FOIS PAR MOIS PENDANT LA SAISON DE CHAUFFAGE TOUTE ACCUMULATION DOIT TRE ENLEV E UNE INSPECTION ET UN NETTOYAGE COMPLETS DE LA CHEMIN E DOIVENT TRE EFFECTU S...

Page 35: ...froides et la construction de votre maison isolation jouent un r le important dans la capacit du thermostat maintenir la temp rature fix e FUM E VISIBLE La quantit visible de fum e produite peut tre...

Page 36: ...afin que le ventilateur de combustion soit en MARCHE Commencez le feu avec environ 12 livres de bois d allumage qui sera constitu de plusieurs petites lamelles de bois larges de 4 7 cm 1 1 2 2 1 2 po...

Page 37: ...que inf rieur PCI ou le pouvoir calorifique sup rieur PCS du combustible Le pouvoir calorifique inf rieur c est lorsque l eau quitte le processus de combustion sous forme de vapeur dans le cas des po...

Page 38: ...plus lev s et des missions plus faibles r sultent g n ralement de la combustion de bois feuillus s ch s l air par rapport aux bois tendres ou aux bois feuillus trop verts ou fra chement coup s Les re...

Page 39: ...combustion dans la fournaise et non l vacuation CHEMIN E PR FABRIQU E L utilisation d une chemin e pr fabriqu e en m tal exige le respect des instructions d installation du fabricant Vous devez aussi...

Page 40: ...e 15 24 cm 6 po Utilisez ceci comme passage mural pour un conduit de raccordement en m tal simple paroi d un calibre minimum 24 Gardez la section solid pak concentrique et espac e de 2 54 cm 1 po du c...

Page 41: ...nt du mur combustible En utilisant une paisseur minimale de la brique de 89 mm 3 5 po et une paisseur minimale de la paroi du boisseau en argile de 15 9 mm 5 8 po construisez un manchon de raccordemen...

Page 42: ...seau d argile r fractaire du m tal ou des tuiles d argile scell es ensemble avec un ciment r fractaire Les conduits ronds sont les plus efficaces Le diam tre int rieur du conduit de fum e doit tre ide...

Page 43: ...l installation et le fonctionnement de votre nouvelle fournaise sont corrects En cas d installation dans une zone quip e d un ventilateur celui ci ne doit pas cr er de pression n gative dans la pi ce...

Page 44: ...TTENTION LES GAZ PROVOQU S PAR LE BOIS FRAIS DOIVENT TRE BR L S SINON ILS S ACCUMULENT ET EXPLOSENT N TOUFFEZ JAMAIS UN FEU LORSQUE VOUS AJOUTEZ DU BOIS FRAIS DANGER RISQUE D INCENDIE OU D EXPLOSION N...

Page 45: ...8 2023 United States Stove Company REMPLACEMENT DU FILTRE AIR Ins rez un filtre air 16 24 1 non inclus INSTRUCTIONS D ASSEMBLAGE...

Page 46: ...une longueur pr d termin e d environ 1 m tre 3 pi BO TIER DE FILTRE Le bo tier de filtre est compos de 4 pi ces plus tout le mat riel n cessaire l assemblage Assemblez les c t s le haut et le bas du b...

Page 47: ...le capot avant l appareil comme illustr VENTILATEURS DE DISTRIBUTION AVEC JOINTS D TANCH IT Fixez les deux sou antes et les joints l unit l aide des huit 8 boulons 1 4 20 3 4 fournis SUPPORT DE BO TE...

Page 48: ...Apr s l installation l cran de cantonnement doit pouvoir balancer librement vers la fournaise VUE EXT RIEURE DE L UNIT VUE INT RIEURE DE L UNIT POIGN E ET LOQUET DE LA PORTE D ALIMENTATION Utilisez un...

Page 49: ...one pour viter tout dommage pendant le transport Tenter de supprimer les briques r fractaires avant l utilisation peut entra ner des dommages CONFIGURATION DU PANNEAU EN FIBRE C RAMIQUE Inspectez s il...

Page 50: ...que _________________________________ Si non date d inspection du syst me de chemin e existant ________________________________________________________________ MISE EN SERVICE Confirmez l installation...

Page 51: ...VOUS DEVEZ AUSSI PROC DER L INSPECTION DE VOTRE CHEMIN E POUR D TECTER LES D P TS DE CR OSOTE UNE FOIS PAR MOIS PENDANT LA SAISON DE CHAUFFAGE ET UNE FOIS PAR AN POUR UN CONTR LE ET UN NETTOYAGE Ce ma...

Page 52: ...z enti rement ce manuel avant d installer ou d utiliser cette unit Ne pas respecter ces instructions pourrait causer des dommages la propri t des blessures corporelles ou m me la mort Une installation...

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