United States Stove EC95, EC95 User Manual

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WOOD BURNING

 

CIRCULATOR HEATER

 

MODEL EC95

 

website: www.usstove.com

 

Installation, Operation and Maintenance Instructions

 

TABLE OF CONTENTS

 

IMPORTANT SAFETY INFORMATION ................................................................................................................................................

1

BUILDING CODES AND SAFETY STANDARDS ................................................................................................................................

2

HOW THIS HEATER OPERATES ........................................................................................................................................................

2

SELECTING A LOCATION FOR THE HEATER ...................................................................................................................................

2

FLOOR PROTECTION ........................................................................................................................................................................

4

CHIMNEY CONNECTOR AND CHIMNEYS ........................................................................................................................................

4

HEATER INSPECTION ........................................................................................................................................................................

8

TOOLS AND SUPPLIES NEEDED FOR INSTALLATION ....................................................................................................................

8

HEATER INSTALLATION .....................................................................................................................................................................

8

MINIMUM CLEARANCES TO COMBUSTIBLE WALLS AND CEILINGS ......................................................................................

8

TO SAFELY AND PROPERLY INSTALL THIS HEATER .................................................................................................................

9

HEATER OPERATION .......................................................................................................................................................................

10

TO BUILD A FIRE .........................................................................................................................................................................

10

FIRETENDING .............................................................................................................................................................................

11

WOOD FACTS ..............................................................................................................................................................................

11

HOW TO TAKE CARE OF THE HEATER AND VENTING SYSTEM (ROUTINE MAINTENANCE) ...................................................

12

HEATER MAINTENANCE ............................................................................................................................................................

12

DISPOSAL OF ASHES .................................................................................................................................................................

12

VENTING SYSTEM ( CHIMNEY AND CHIMNEY CONNECTOR) ...............................................................................................

12

CHIMNEY CONNECTOR PIPE-CORROSION INSPECTION ......................................................................................................

12

TROUBLESHOOTING .......................................................................................................................................................................

13

THE VENTING SYSTEM-KEY TO GOOD HEATER PERFORMANCE ........................................................................................

13

WHAT TO DO IF THE HEATER SMOKES, BURNS POORLY OR EXCESSIVE CREOSOTE ACCUMULATES IN THE CHIMNEY .......

13

WHAT TO DO IF THE HEATER BURNS TO RAPIDLY OR OVERHEATS ....................................................................................

14

QUICK REFERENCE TO THE MOST COMMON SOLUTIONS FOR THE MOST COMMON HEATER OPERATIONAL PROBLEMS ...

14

FINAL CHECKLIST OF DO’S AND DON’TS ...............................................................................................................................................

15

WARRANTY CLAIM INFORMATION AND REPAIR PARTS .........................................................................................................................

16

IMPORTANT SAFETY INFORMATION

 

SAFETY NOTICE: IF THIS HEATER IS NOT PROPERLY INSTALLED, A HOUSE FIRE MAY RESULT. FOR YOUR SAFETY, FOLLOW THE INSTALLATION INSTRUCTIONS. CONTACT LOCAL BUILDING OR FIRE OFFICIALS ABOUT RESTRICTIONS AND INSTALLATION INSPECTION REQUIREMENTS IN YOUR AREA.

To assure that satisfactory and safe service is received from this heater:

1.Read these instructions entirely before beginning any part of the installation.

2.Use these instructions as a guide during the installation of the heater.

3.Be sure these instructions become the property of and are reviewed by all future users of this heater to encourage proper operation and maintenance of this appliance.

This heater is designed to burn wood only and to provide heat to one or more rooms. Because of its radiating characteristics, this heater must be installed as an unenclosed, freestanding unit with clearances to combustibles as specified by these instructions. This heater must be connected to a Listed Factory-Built Residential Type and Building Heating Appliance Chimney or a properly constructed and maintained masonry chimney.

DO NOT CONNECT THIS UNIT TO A CHIMNEY FLUE SERVING ANOTHER APPLIANCE.

This heater is not designed to burn coal, liquid fuels, and gaseous fuels or household refuse. Any attempt to burn these type fuels, to enclose the heater or to attach the heater to an air circulation system or a stoking device can be very hazardous. THIS HEATER IS NOT DESIGNED TO BE USED IN A MOBILE HOME.

EC95

851394 A

1

BUILDING CODES AND SAFETY STANDARDS

These instructions comply with the applicable National Fire Protection Association and Underwriters’ Laboratories, Inc. Standards for the installation and operation of this type heater. Before beginning the installation, you should check with local building officials to assure compliance with local regulations and codes.

This heater is safety listed by Warnock Hersey International, Inc. as specified by the listing label attached to the heater.

HOW THIS HEATER OPERATES

The chimney draft draws in combustion air through an adjustable air inlet thermostat located inside the cabinet. Air flows through and across the bed of fuel, causing the fire to progress through the fuel bed. Heat is transferred to the air that flows between the cabinet and the firebox. Any attempt to alter this air by connecting this heater to a duct system or air movement fans other than the optional KB902 listed blower, available from your heater dealer, can lead to improper and possibly hazardous operation of this heater.

SELECTING A LOCATION FOR THE HEATER

When selecting a location for the heater, be sure attention is given to the following considerations:

1.If the heater is to be vented into a Listed High Temperature Type HT Factory-Built Residential Type And Building Heating Appliance Chimney, review the installation instructions for the chimney to comply with requirements for proper chimney location, height, space requirements, etc.

2.If the heater is to be vented into a masonry chimney, the heater should be located as near the chimney as possible without failing to comply with the requirements for minimum spacing between the chimney connector, heater and combustibles. (Be sure chimney is constructed according to NFPA standards.)

3.The location of the heater must provide at least the minimum clearances between the heater, chimney connector and combustible materials as specified by figures 1, 2, 3, 4.

4.If the heater is to be located on a combustible floor, there must be suitable floor space to install a floor protector beneath and extending beyond the heater as shown by figure 5 and as described by the Floor Protection section of this manual.

5.The heater should be located centrally within the area where heat is desired but out of traffic areas to minimize the likelihood of persons accidentally contacting the hot surface of the heater.

6.The heater should be located away from doorways and central heat outlets and inlets to reduce the chance of drafts blowing smoke, ashes or sparks out of the heater during refueling or ash removal.

7.The heater should be located where a small supply of wood may be kept conveniently close but not within 36 inches of the heater.

8.Locate the heater so that drapes, curtains, furniture and other combustible materials will not be closer than the clearances shown by figures 1, 2, 3, and 4 OR install a clearance reduction system. See MINIMUM CLEAR ANCES TO COMBUSTIBLE WALLS AND CEILINGS section of this manual for details.

FIGURE 1 - MINIMUM CLEARANCES

TO COMBUSTIBLES

FIGURE 2 - MINIMUM CLEARANCES TO

COMBUSTIBLES

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FIGURE 3 - MINIMUM CLEARANCES TO COMBUSTIBLES

FIGURE 4 - MINIMUM CLEARANCES TO COMBUSTIBLES

SIDE SECTION VIEW

PLAN SECTION VIEW

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3

FIGURE 5 - FLOOR PROTECTION

FLOOR PROTECTION

This heater has been designed to prevent excessive temperatures on the floor beneath the heater. It is important, however, that a combustible floor be protected by a 3/8 inch minimum thick noncombustible inorganic millboard having a

thermal conductivity of K=0.43 BTU/ft.2/in./hr./°F or a listed floor protector beneath the heater extending beyond the heater as shown by figure 5. The floor covering is required to prevent damage or possible ignition from sparks or glowing embers that might escape the heater during refueling or ash removal or drop from the joints of the chimney connector.

CHIMNEY CONNECTOR AND CHIMNEYS

It is very important to assure safe and satisfactory performance from your heater that it be properly connected to a correctly constructed and maintained chimney. If a Listed High Temperature

Type HT Factory-Built Residential and Building Heating Appliance

FIGURE 6 - RISE OF HORIZONTAL

Chimney is used, follow the chimney manufacturer’s installation

CHIMNEY CONNECTOR PIPE

instructions carefully. If a masonry chimney is to be used, be sure

 

 

 

it is constructed to the National Fire Protection Association

 

 

 

(N.F.P.A) and local code standards. A copy of the N.F.P.A 211

 

 

 

Chimney, Fireplaces, Vents and solid Fuel Burning Appliances

RISE:

 

 

may be obtained from N.F.P.A., Inc. Batterymarch Park, Quincy,

1/4" FOR EACH FOOT

MA 02269.

OF CONNECTOR

 

 

LENGTH

 

UP

 

 

ANGLE

The Chimney connector (pipe from heater to chimney) must be

PIPE

 

 

 

HORIZONTAL

6 inches in diameter and made from 24 gauge or heavier steel.

 

 

 

The length of the chimney connector and number of elbows used

 

 

TO CHIMNEY

should be kept to a minimum. Moisture that might collect in the

 

 

 

chimney should be directed to the heater by providing a slope of

HEATER

 

 

1/4 inch per foot in a horizontal run of the chimney connector and

 

 

installing all pipes with the crimped end toward the heater, (See

 

 

TO

 

 

 

 

 

figure 6). The chimney connector should extend at least two

 

 

 

inches into the flue of a factory-built chimney. When making a

 

 

 

horizontal connection to a masonry chimney, the connector should

 

 

 

extend to the inside face of the vertical flue liner, (see figures 7 and 8). When connecting the heater to a masonry fireplace, the

chimney connector should extend into the chimney’s liner as shown by the side section view of figure 4. All chimney connector joints should be sealed with furnace cement and secured with No. 8 sheet metal screws as described by the TO SAFELY AND PROPERLY INSTALL THIS HEATER section of this manual.

DO NO USE MORE THAN TWO 90 DEGREE ELBOWS IN THE Chimney CONNECTOR. Installations which require two degree elbows must be vented into a flue of at least 8” diameter or 8” square to prevent chimney draft restrictions, (see figure 2).

DO NOT PASS A CHIMNEY CONNECTOR THROUGH A FLOOR OR CEILING OF ANY KIND. Only Listed Factory-Built Residential Type and Building Heating Appliance Chimneys or masonry chimneys constructed to N.F.P.A. standards should pass through a floor or ceiling.

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There are five allowable ways that a chimney connector can be connected to a masonry chimney by passing through a combustible wall. NFPA Standard 211 allows the following wall pass-through systems.

1.Use a minimum 3-1/2" thick brick masonry wall framed into the combustible wall. A fireclay liner (ASTM C315 or equivalent) having a 5/8" minimum wall thickness must be used and it must be at least 12" away from any material that could catch fire. The inside diameter of the fireclay liner shall be sized for the proper snug fit of a 6" diameter chimney con nector pipe. The fireclay liner shall run from the outer surface of the brick wall to, but not beyond, the inner surface of the chimney flue and shall be firmly cemented in place. See Part A of Figure 7.

2.Use a solid insulated listed factory-built chimney length having an inside diameter of 6" and having 1" or more of solid insulation. There must be at least a 9" air space between the outer wall of the chimney length and any combustible materials. The inner end of the chimney length shall be flush with the inside of the masonry chimney flue shall be sealed to the flue and to the brick masonry penetration with nonwater-soluble refractory cement. Sheet steel supports which are at least 24 gauge(0.024") in thickness shall be securely fastened to wall surfaces on all sides. Fasteners between supports and the chimney length shall not penetrate the chimney liner. See Part B of Figure 7.

3.Use a 10" diameter ventilated thimble made of at least 24 gauge(0.024") steel having two 1" air channels. The ventilated thimble must be separated from combustible materials by a minimum of 6" glass fiber insulation. The opening in the combustible wall shall be covered and the thimble supported with sheet steel supports which are at least 24 gauge (0.024") in thickness. The sheet steel supports shall be securely fastened to wall surfaces on all sides and shall be sized to fit and hold the chimney section. Fasteners used to secure chimney sections shall not penetrate chimney flue liner. See Part C of Figure 7.

4.Use an 8" inside diameter solid insulated listed factory-built chimney length which has 1" or more of solid insulation. The minimum length of this chimney section shall be 12" and will serve as a pass-through for the 6" diameter chimney connector. There must be at least a 12" air space between the outer wall of the chimney section and any combustible materials. The chimney section shall be concentric with and spaced 1" away from the chimney connector by means of sheet steel support plates on both ends of the chimney section. The opening in the combustible wall shall be covered and the chimney section supported on both sides with sheet steel supports which are at least 24 gauge (0.024") in thickness. The sheet steel supports shall be securely fastened to wall surfaces on all sides and shall be sized to fit and hold the chimney section. Fasteners used to secure chimney sections shall not penetrate chimney flue liner. See Part C of Figure 7.

5.A listed factory-built wall pass-through system may be purchased and installed according to the instructions packaged with it to provide a safe method of passing the chimney connector through a combustible wall for connection to a masonry chimney.

Additional requirements pertaining to Figure 5 and the above wall pass-through systems:

1.Insulation material used as part of wall pass-through system shall be of noncombustible material and shall have a thermal conductivity of 1.0 Btu • in./ft.² • °F (4.88 kg • cal/hr • m² • °C) or less

2.All clearances and thicknesses are minimums: larger clearances and thickness are acceptable.

3.A chimney thimble, as shown for 3" and 4" above (Parts C and D respectively of Figure 7) shall be for types "3" and "4" connections to facilitate removal of the chimney connector for cleaning. The chimney thimble shall be of ASTM C315 fireclay with 5/8" minimum wall thickness , or material or equivalent durability. The inside diameter of the thimble shall be sized for the proper snug fit of a 6" diameter chimney connector pipe. The thimble shall be installed without damage to the chimney flue. The thimble shall extend through the chimney wall to, but not beyond, the inner surface of the chimney flue and shall be permanently cemented in place with high temperature cement.

4.A chimney connector to a masonry chimney, except for 2" above (Part B of Figure 7), shall extend through the wall pass-through system to the inner face of the chimney flue, but not beyond. It does not have to be fastened in place so long as it cannot accidently be pulled out of the chimney or shoved into the chimney flue. If fasteners are used to secure the chimney connector to a masonry chimney, the fasteners shall not penetrate the chimney flue liner.

5.Any material used to close up any opening for the connector shall be noncombustible.

If the chimney connector does not have to pass through a combustible wall to get to a masonry chimney, connect the chimney connector to the masonry chimney as shown in figure 8. The fireclay liner shown by figure 8 should be sized for the proper snug fit of a 6” diameter chimney connector pipe. The fireclay liner should be firmly cemented in place as shown. As previously stated, any metal prefabricated chimney this heater is connected to must be a listed Hi-Temp Type HT Factory Built Residential Type and Building Heating Appliance Chimney.

When a metal prefabricated chimney is used, the manufacturer’s installation instructions must be followed precisely. You must also purchase (from the same manufacturer) and install the ceiling support package or wall pass through and “T” section package, firestops (when needed), insulation shield, roof flashing, chimney cap, etc. Maintain the proper clearance to the structure as recommended by the manufacturer. This clearance is usually a minimum of 2 inches, although it may vary by manufacturer or for certain components.

A listed chimney cap should be installed to prevent entrance of rain and help eliminate down drafts. An unapproved chimney cap, protector or spark arrester can become clogged when leaves or other matter. This blocks the chimney and causes smoke, and the dangerous carbon monoxide in smoke, to spill back into your home where it can kill you.

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There are basically two methods of metal prefabricated chimney installation. One method is to install the chimney inside the residence through the ceiling and the roof. The other method is to install an exterior chimney that runs up the outside of the residence.

REMEMBER: Follow the chimney manufacturer's installation instructions and maintain the manufacturer's specified clearance distance.

Additional chimney information is presented throughout this manual. READ IT THOROUGHLY TO BE MORE THOROUGHLY INFORMED.

CONNECTION OF CHIMNEY CONNECTOR TO A MASONRY CHIMNEY THROUGH A COMBUSTIBLE WALL

PART A, FIGURE 7

(FIGURE 7 CONTINUED ON NEXT PAGE)

MINIMUM 12 IN.

TO COMBUSTIBLES

CHIMNEY FLUE

MASONRY CHIMNEY CONSTRUCTED TO NFPA 211

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

(5/8" MIN. WALL THICKNESS)

MIN. 3-1/2" THICK BRICK

MASONRY WALL

PART B FIGURE 5 -

(FIGURE 5 CONTINUED)

MINIMUM CHIMNEY CLEARANCES FROM MASONRY TO

SHEET STEEL SUPPORTS AND COMBUSTIBLES 2 IN.

FACTORY-BUILT

NONSOLUBLE

CHIMNEYFLUE

SPACEAIR

CHIMNEY LENGTH

 

MINIMUM CLEARANCE

 

9 IN. ALL AROUND

 

 

 

 

REFACTORY

 

CHIMNEY CONNECTOR

 

 

TO HEATER

 

CEMENT

 

 

 

 

 

CHIMNEY LENGTH

 

 

 

FLUSH WITH INSIDE

 

USE CHIMNEY MFRS. PARTS TO

AIR SPACE

OF FLUE

 

 

ATTACH CONNECTOR SECURELY

9 IN. MINIMUM

 

 

 

 

 

 

 

 

SOLID INSULATED, LISTED

 

 

 

FACTORY-BUILT CHIMNEY LENGTH

 

MASONRY CHIMNEY CONSTRUCTED

SHEET STEEL SUPPORTS

 

TO NFPA 211

 

(24 GAUGE MIN. THICKNESS)

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EC95

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