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INTRODUCTION 

 

    Take note that this furnace operates like an EPA wood burning stove.  This applies to the lighting, the embers and 
the minimum combustion air intake which depends on the type and the grade of the combustible. 
 
    This model line is certified as meeting the emissions limits in 40 C.F.R. part 60, section 60.532 (B) per EPA 
methods 28 and 5G-3, February 1988. 
 

Average emissions rate: 6.56 g/hr 

Average heating efficiency: 71.43% 

 
     
 
 
    To  optimize  the  efficiency  of  your furnace, here are few advices you should follow when installing or operating 
your Hotblast 1950 furnace. 
    Respect the local codes (when in doubt, consult your local dealer). 

    Make sure your furnace is installed according to the instructions on the certification plate. 

    All controls adjustments must be performed by a qualified technician.  The controls settings and the blower speed 
must conform to the recommendations of the National Warm Air Heating and Air Conditioning Association and 
respect the recommended static pressure ranges in the warm air bonnet of the furnace (see General Technical 
Data,  static pressure). 
 
 
 

1.  CHIMNEY AND DRAFT 

 
    This furnace must be connected to a chimney certified for wood burning heating appliances; a 7 inch connector is 
highly recommended for your Hotblast 1950. 
 
   If draft exceed –0.06 in. W.C a barometric damper should be installed on the smoke pipe. 
    Never install a manual damper. 
 
    The barometric control must be adjusted so that the maximum draft measured at the furnace outlet does not 
exceed -0.06 in. w.c.  Please note that a draft exceeding -0.06 in. w.c. could produce an uncontrollable fire.  

On the 

other hand, the minimum draft required is -0.04 in. w.c. in the evacuation pipe.

 

 
 

2. SAFETY 

RULES 

 

2.1 GENERAL 

REQUIREMENTS 

 

 

Make sure the chimney outlet and the pipes are clean and in good condition. 

 

Do not use chemical products or flammable liquids to light the fire. 

 

Do not burn wood coated with paint, glue or chemical products. 

 

Do not burn wastes or flammable liquids such as gasoline, naphtha or motor oil. 

 

Do not install an automatic feeder on this furnace. 

 

Do not store wood in the vicinity of the furnace.  Respect the required clearances between combustible materials 
and the source of heat.  

 

2

Summary of Contents for HOTBLAST 1950

Page 1: ...Testing Services Distributed by UNITED STATES STOVE COMPANY 227 INDUSTRIAL PARK ROAD P O BOX 151 SOUTH PITTSBURG TN 37380 Tel 423 837 2100 Fax 423 837 2109 8BDC3 Tm TjETEMC P 41302957 1302957 1302957...

Page 2: ...ECTRICAL CONNECTION 8 3 6 THERMOSTAT 8 3 7 FAN CONTROL 8 4 OPERATING INSTRUCTIONS 9 4 1 LIGHTING 9 4 2 PREHEATING 9 4 3 HEATING 10 4 3 1 EARLY SIGNS OF OVERFIRED FURNACE 10 4 3 2 WOOD AS HEATING FUEL...

Page 3: ...anges in the warm air bonnet of the furnace see General Technical Data static pressure 1 CHIMNEY AND DRAFT This furnace must be connected to a chimney certified for wood burning heating appliances a 7...

Page 4: ...the chimney cleaning buy your firewood at least one year before using it Store it in a dry place in order to obtain the minimum moisture content and optimize its efficiency Do not store wood or combus...

Page 5: ...eaners are available on the market and their efficiency makes no doubt WARNING Avoid knocking or scratching the glass which could be damaged 2 6 1 GLASS SPECIFICATIONS The glass is made of Pyroceram t...

Page 6: ...e connector is as short as possible minimize the use of 90o elbows The owner must ensure a proper installation to allow a safe operation of the appliance 3 2 CLEARANCES TO COMBUSTIBLE MATERIALS N B Th...

Page 7: ...raft exceed 0 06 in W C a barometric damper should be installed on the smoke pipe Never install a manual damper REDUCER DIAMETER 7 For a proper installation follow the advices below 1 All the joints o...

Page 8: ...hat a house constructed or renovated in order to be airtight is liable to lack fresh air necessary for a proper combustion and operation of flame producing heating appliance In such a case when starti...

Page 9: ...6 THERMOSTAT The thermostat must be installed on an inside wall in a location where it is not likely to be affected by the draft coming from an air outlet It must be installed at a minimum of 55 inche...

Page 10: ...ating 2 Remove the steel plate on the ash grid and dump the ashes in the ash drawer 3 Put the steel plate back in place making sure it is properly seated The steel plate on the ash grid is intended to...

Page 11: ...THE PURPOSE IS TO STABILIZE THE PRESSURE INSIDE THE FURNACE 4 3 1 EARLY SIGNS OF OVERFIRED FURNACE 1 Roaring fire 2 Chimney connector is glowing red 3 Extreme heat coming from the furnace 4 If this oc...

Page 12: ...anches or small pieces of wood can ignite the creosote residues accumulated in the evacuation flue system The usual signs are 1 Rumbling 2 The flue gets extremely hot 3 Sparks are coming out of the ch...

Page 13: ...e exchanger pipes move the upper plate of the combustion chamber forward Using the scraper clean the three exchanger pipes The accumulated dirt in the lateral exchangers will fall into the combustion...

Page 14: ...e otherwise it must be replaced Use only wood as a combustible Seasoned hard wood logs 18 to 22 long are recommended as a combustible 5 3 MAINTENANCE OF THE BLOWER MOTOR The two bearings of the motor...

Page 15: ...ediately Never operate a furnace with a broken glass If you have to change your door glass you must use Pyroceram 3 16 5mm thick glass available at your HOTBLAST authorized dealer To replace the glass...

Page 16: ...LOW L2 120 V A C L1 BLACK TRANSFO JUNCTION BOX 24 V A C 24 V A C THERMOSTAT SERVO MOTOR RED BLACK WHITE BLACK BLACK 24 V A C 120 V A C TRANSFORMER SWITCH MOVE THIS WIRE TO CHANGE MOTOR SPEED REVISION...

Page 17: ...DIRECT DRIVE OUTPUT TEMP VAR BTU HR STATIC PRESSURE FILTER FAN MOTOR SPEED CFM O F WOOD MIN MAX 2 H2O HOTBLAST 1950 DD 10 1 3 3 or 4 1300 78 140000 0 2 0 6 12 x 24 X 1 8 2 TECHNICAL DATA ELECTRIC CON...

Page 18: ...t 2 x 12 damper or 4 x 10 For a 6 warm air outlet 2 x 14 damper or 4 x 12 WARM AIR SYSTEM INSTALLATION HOUSE DIMENSIONS Example 28 x 40 bungalow 1 120 sq ft 28 x 40 x 8 8 960 cu ft x 1 8 Ch air hr 16...

Page 19: ...5 8 9 6 3 8 9 4 1 4 7 1 2 1 1 2 1 1 4 3 1 8 6 3 1 5 9 7 9 9 9 8 6 7 7 7 7 7 7 7 7 7 6 6 6 6 2 2 7 7 7 7 7 7 7 7 7 7 4 ITEM PART DESCRIPTION QTY 1 BRICK 4 1 4 X 9 SPECIAL 1 2 BRICK 4 1 2 X 7 5 8 2 3 B...

Page 20: ...to the damper motor Rebalance the ventilation system in order to increase the air flow in the room where the thermostat is located Fan start up is too slow Fan ON setting too high Return air is too co...

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