United States Stove HOTBLAST 1357M Owner's Manual

Solid fuel warm air furnace

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Models 1357M & 1557M

OWNER'S MANUAL

SOLID FUEL

WARM AIR FURNACE

FOR PARALLEL INSTALLATION WITH EXISTING FORCED AIR-GAS OR OIL

FIRED FURNACE (U.S. ONLY)

FOR INSTALLATION AS A CENTRAL FURNACE

ALL MODELS CERTIFIED UNDER UL 391

U.S. Environmental Protection Agency

Certiﬁed to comply with 2015 particulate emissions standards.

IMPROPER INSTALLATION MAY

CAUTION:

VOID YOUR WARRANTY

READ ALL INSTRUCTIONS CARE-

FULLY BEFORE STARTING THE

INSTALLATION OR OPERATING

DO NOT USE THIS FURNACE

THE FURNACE

IN A MOBILE HOME OR TRAILER

UNITED STATES STOVE COMPANY

227 Industrial Park Road

P.O.Box 151

South Pittsburg, TN 37380

800-750-2723

www.USSTOVE.com

85591U-1905E

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Questions and answers

Donald Stricker

June 18, 2025

if i am using my Hotblast furnace stand alone in a open basement, what is the minimum amount of ductwork plenum that i have to install?

1 comments:

Donald Stricker

June 23, 2025

@Donald Stricker Any answer on this?

Summary of Contents for United States Stove HOTBLAST 1357M

Page 1 READ ALL INSTRUCTIONS CARE- FULLY BEFORE STARTING THE INSTALLATION OR OPERATING DO NOT USE THIS FURNACE THE FURNACE IN A MOBILE HOME OR TRAILER UNITED STATES STOVE COMPANY 227 Industrial Park Road P.O.Box 151 South Pittsburg, TN 37380 800-750-2723 www.USSTOVE.com...
Page 2: Tools And Materials Needed
CONGRATULATIONS! You've purchased one of America's Finest Wood and Coal Burning Furnaces. By heat- ing with wood and coal you're helping CONSERVE AMERICA'S ENERGY! Wood is our Renewable Energy Resource. Please do your part to preserve our wood supply. Plant at least one tree each year. Future generations will thank you. NOTE: YOUR UNIT MUST BE INSTALLED BY A QUALIFIED FURNACE INSTALLER.
Page 3: Safety Notice
Caution Labels Caution Labels Your Furnace has the following labels. Read and Obey all labels. DANGER: RISK OF FIRE OR EXPLOSION. DO NOT burn garbage, gasoline, drain oil, or other ﬂ ammable liquids. WARNING: FIRE HAZARD. DO NOT operate with ﬁ re draft exceeding .06 inches w.c. DO NOT operate with fuel loading or ash removal doors open.
Page 4 Rules for safe installation and operation Read these rules and the instructions carefully. Failure to follow them will cause a hazard that could result in death, serious bodily injury, and/or property damage. 1. Check your local codes. The installation must comply ing ﬁ...
Page 5 HOW THE FURNACE FUNCTIONS PARALLEL INSTALLATION: (U.S. ONLY) Your HOTBLAST Furnace is designed to be a supplemental or central heating source for your home. This Solid Fuel The design is such that when the blower comes on, the blower Furnace may be installed in conjunction with a properly oper- on the central system also comes on.
Page 6 DIMENSIONS OF FURNACE Figure 1 Model 1357M Figure 2 Model 1557M...
Page 7: Locating The Furnace
LOCATING THE FURNACE 1. The furnace should be located in the same room as the 18" 6" CHIMNEY central system and as close as possible, but not closer than 9". There should be no wall between the furnace 21" and the warm air outlet duct that is connected directly to the warm air outlet plenum of the central furnace.
Page 8 Chimney Connection MASONRY CHIMNEY THIMBLE Before using an existing masonry chimney, clean the chimney 6" ELBOW and inspect the ﬂ ue liner to be sure it is safe to use. Make repairs before attaching the furnace. The connector pipe and ﬁ ttings you 6"...
Page 9 Rules for Connector Pipe Installation 1. The crimped end of the chimney connector ﬁ ts inside the furnace ﬂ ue collar. Install additional chimney connectors and elbow NOTE: A ﬂ ue pipe shall not pass through an attic, roof with the CRIMPED END TOWARD THE FURNACE. This will space, closet or similar concealed space, a ﬂ...
Page 10 CONNECTION OF CHIMNEY CONNECTOR TO A MASONRY CHIMNEY THROUGH A COMBUSTIBLE WALL Figure 8 shows how to connect the chimney connector of a heater to a masonry chimney through a combustible wall. There are ﬁ ve allowable ways that a chimney connector can be connected to a masonry chimney by passing through a combustible wall.
Page 11 FIGURE 12, PART A MINIMUM CHIMNEY CLEARANCE TO BRICK AND COMBUSTIBLES IS 2 IN. MINIMUM CLEARANCES 12 IN. OF BRICK ALL AROUND CHIMNEY CONNECTOR TO HEATER FIRE CLAY LINER MINIMUM 12 IN. (5/8" MIN. WALL THICKNESS) TO COMBUSTIBLES MASONRY CHIMNEY CONSTRUCTED TO MIN.
Page 12 MINIMUM CHIMNEY CLEARANCES FROM MASONRY TO FIGURE 12, PART D SHEET STEEL SUPPORTS AND COMBUSTIBLES 2 IN. SHEET STEEL SUPPORTS MINIMUM CLEARANCE 2 IN. ALL AROUND CHIMNEY SECTION 1 IN. AIR SPACE TO CHIMNEY THIMBLE CHIMNEY LENGTH CHIMNEY CHIMNEY CONNECTOR CONNECTOR TO HEATER SOLID INSULATED, LISTED...
Page 13 ASSEMBLY OF FURNACE Your furnace requires the following items to be assembled or installed by the service person: Feed Door Pull Handle Feed Door Locking Handle Blowers and Blower Controls Electrical Connections 1. Remove all parts from inside the furnace and inspect for damage, including the ﬁ...
Page 14: Wiring Diagram
WIRING DIAGRAM Figure 16 NOTE: For model 1357M, disregard the wiring (wires M1 & M2) of one blower motor. Wire leads from the distribution blower are usually BOTH BLACK. Makes no difference which leads from the motor(s) connects to the corresponding leads coming out of the conduit.
Page 15: Installation
INSTALLATION c) Clearance from combustible materials must comply with those stated on the label on the side of the unit. Please see all methods of Installation at the Refer to the clearance table in the front of this manual. rear of this booklet. The installation must be made only on a noncombustible ﬂ...
Page 16 OPERATING INSTRUCTIONS VISIBLE SMOKE The top down method of ﬁ re building is recommended for this The amount of visible smoke being produced can be an ef- appliance. After making sure that the stove air intake controls fective method of determining how efﬁ ciently the combustion are fully open (completely pull-out towards you), Place the process is taking place at the given settings.
Page 17 ADDING FUEL combustible materials, pending ﬁ nal disposal. The ashes should be retained in the closed container until all cinders When starting a ﬁ re, add small amounts of fuel instead of have thoroughly cooled. adding large quantities of fuel. This will give more complete combustion and less build-up of tars or soot in the chimney.
Page 18: Service Hints
• Burning unseasoned wet wood only hurts your stoves the roof within 10 feet. efﬁ ciency and leads to accelerated creosote buildup 6. See page 18 for list of trouble shooting tips. in your chimney CHIMNEY MAINTENANCE SERVICE HINTS Creosote and Soot - Formation and Need for Removal Do not expect a furnace to draw.
Page 19 Trouble Shooting Tips for Warm Air Furnace 1. Problem: F. Slide bafﬂ e should be pulled out prior to load door opening. Smoke puffs from furnace 4. Problem: Solution: Distribution blower vibrating A. Check chimney draft. Check for blocked chimney or ﬂ...
Page 21 Parts List Part No. Description Model Qty. Part No. Description Model Qty. 25541G 1357M 1357M Cabinet Side (Left & Right) 80230 Blower 25467G 1557M 1557M 88032 Flue Collar Gasket 1357M 89319 Gasket, Blower 40246 Flue Collar 1557M 83227 Bolt, 1/4-20 x 1" 1357M 83340 1/4-20 Clipnut...
Page 22 Such installation will preclude any over-ﬁ ring and/or any hazardous consequences of potential overﬁ ring. Barometric draft regulators are generally available where you purchased your stove or may be ordered directly UFB908 from United States Stove Company at a nominal charge. DR-6...
Page 23: Stove Operation
BULLETIN RC454 A GUIDE TO BURNING COAL IN YOUR FURNACE Furnaces that are capable of burning coal usually will burn chimney’s or installations are going to be the same. Just both Bituminous and Anthracite coal. Anthracite is perhaps remember to allow enough air to enter the ﬁ rebox and keep the best coal fuel because of its long even burn time, high the stove pipe damper open so that volatiles are properly heat output, and cleanliness which make it a good choice...
Page 24 BULLETIN RC454 A GUIDE TO BURNING COAL IN YOUR FURNACE depth it is time to add fresh coal. When doing so, open during this time. After loading, let the ﬁ re establish itself for the stove pipe damper and turn the thermostat damper to about 30 minutes.
Page 25: Add-On Installation
CENTRAL INSTALLATION ADD-ON INSTALLATION...
Page 26 Appendix INSTALLATION A TO EXISTING DUCT WORK COLD AIR WARM AIR RETURN EXISTING FURNACE INSTALLATION B SOLID FUEL FILTER BOX FURNACE TO EXISTING PLENUM DUCT WORK COLLECTOR WARM AIR COLD AIR RETURN EXISTING FURNACE SOLID FUEL FILTER BOX INSTALLATION C FURNACE TO EXISTING DUCT WORK...
Page 27 INSTALLATION D INSTALLATION E...
Page 28: Top View
INSTALLATION F INSTALLATION G INSTALLATION H TOP VIEW FRONT VIEW...
Page 29 NOTES...
Page 30 NOTES...
Page 31 NOTES...
Page 32 TION AS SHOWN IN THIS LIST: 1. THE PART NUMBER 2. THE PART DESCRIPTION 3. THE MODEL NUMBER: 1357M 1557M 4. THE SERIAL NUMBER:____________________ United States Stove Company 227 Industrial Park Road P.O. Box 151 South Pittsburg, TN 37380 (800) 750-2723 WWW.USSTOVE.COM...

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United States Stove HOTBLAST 1357M Owner's Manual

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