FMI PFS US VSHRN18M User Manual

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UNVENTED (VENT-FREE)INFRARED GAS HEATER SAFETY INFORMATION AND INSTALLATION MANUAL

PFS ®

US

Models

GWRP16C, GWRn18C, GWRP26C, GWRn30C,

GWRP16TC, GWRn18TC, GWRP26TC, GWRn30TC

VSHRP16M, VSHRP16T, VSHRN18M, VSHRN18T,

VSHRP26M, VSHRP26T, VSHRN30M, and VSHRN30T

WARNING: If the information in this manual is not followedexactly,afireorexplosionmay resultcausing property damage, personal injury or loss of life.

Do not store or use gasoline or other ­flammable vapors and liquidsin the ­vicinity of this or any other appliance.

WHAT TO DO IF YOU SMELL GAS

Do not try to light any appliance.

Donottouchanyelectricalswitch;donotuseany phone in your building.

Immediatelycallyourgassupplierfromaneighbor’s phone. Follow the gas supplier’s instructions.

If you cannot reach your gas supplier, call the fire department.

Installationandservicemustbeperformedbyaqualified installer, service agency or the gas supplier.

INSTALLER: Leave this manual with the appliance. CONSUMER: Retain this manual for future reference.

For more information, visit www.fmiproducts.com

TABLE OF CONTENTS

Safety...................................................................

2

Specifications.....................................................

18

Local Codes.........................................................

4

Troubleshooting.................................................

19

Product Identification............................................

4

Parts...................................................................

22

Unpacking............................................................

4

Accessories........................................................

27

Product Features..................................................

4

Replacement Parts.............................................

27

Air For Combustion and Ventilation......................

5

Service Publications...........................................

27

Installation............................................................

7

Service Hints......................................................

27

Operation...........................................................

14

Technical Service...............................................

27

Inspecting Heater...............................................

17

Warranty...............................................

Back Cover

Cleaning and Maintenance................................

17

 

 

Safety

WARNING: Improper installation, adjustment, alteration,serviceormaintenance can cause injury orpropertydamage.Refer to this manual for correct installationandoperational procedures. For assistance or additional information consult a qualified installer, service agency or the gas supplier.

WARNING: This is an unventedgas-firedheater. It uses air (oxygen) from the room in which it is installed. Provisions for adequate combustion and ventilation air must be provided.Refer to Air for Combustion and Ventilation section on page 5 of this manual.

This appliance is only for use with the type of gas indicated on the rating plate. This appliance is not convertible for use with other gases.

This appliance may be installed in an aftermarket,* permanently located, manufactured (mobile) home, where not prohibited by local codes.

* Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer

WARNING:Thisproductcontainsand/orgenerateschemicals known to the State of California to cause cancer or birth defects or other reproductive harm.

IMPORTANT: Read this owner’s manualcarefullyandcompletely before trying to assemble, operate or service this heater. Improper use of this heater can cause serious injury or death from burns, fire, explosion, electrical shock and carbon monoxide poisoning.

DANGER:Carbonmonoxide poisoning may lead to death!

Carbon Monoxide Poisoning: Early signs of carbon monoxide poisoning resemble the flu, with headaches, dizziness or nausea. If you have these signs, the heater may not be working properly. Get fresh air at once!Have heater serviced. Some people are more affected by carbon monoxide than others. These include pregnant women, people with heart or lung disease or anemia, those under the influence of alcohol and those at high altitudes.

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SAFETY

Continued

Natural and Propane/LP Gas: Natural and propane/LP gases are odorless. An odormaking agent is added to these gases. The odorhelpsyoudetectagasleak.However,the odor added to the gas can fade. Gas may be present even though no odor exists.

Make certain you read and understand all warnings. Keep this manual for reference. It is your guide to safe and proper operation of

this heater.

WARNING: Any change to this heater or its controls can be dangerous.

Keep the appliance area clear and free from combustible materials, gasoline and other flammable vapors and liquids.

1.This appliance is only for use with the type of gas indicated on the rating plate. This appliance is not convertible for use with other gases.

2.Do not place propane/LP supply tank(s) inside any structure. Locate propane/LP supply tank(s) outdoors.

3.This heater shall not be installed in a bedroom or bathroom.

WARNING: Do not use a blower insert, heat exchanger insertorotheraccessorynotapproved for use with this heater.

Due to high temperatures, the applianceshouldbelocatedout oftrafficandawayfromfurniture and draperies.

Do not place clothing or other flammable material on or near the appliance. Never place any objects on the heater.

Surface of heater becomes very hot when running heater. Keep children and adults away from hot surface to avoid burns or clothing ignition. Heater will remain hot for a time after shutdown. Allow surface to cool before touching.

Carefully supervise young children when they are in the room with heater.

Make sure grill guard is in place before running heater.

4.If you smell gas

shut off gas supply

do not try to light any appliance

do not touch any electrical switch; do not use any phone in your building

immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions

if you cannot reach your gas supplier, call the fire department

5.Manual Control Models Always run heater with plaque control knob at the 1, 2, 3 or 4 locked positions. Never set control knob between locked positions. Poor combustion and higher levels of carbon monoxide may result.

6.This heater needs fresh, outside air ventilation to run properly.This heater has an OxygenDepletionSensing(ODS)safetyshutoff system. The ODS shuts down the heater if not enough fresh air is available. See Air for

Combustion and Ventilation, page 5.

7.Keep all air openings in front and bottom of heater clear and free of debris. This will insure enough air for proper combustion.

8.If heater shuts off, do not relight until you provide fresh, outside air. If heater keeps shutting off, have it serviced.

9.Do not run heater

where flammable liquids or vapors are used or stored

under dusty conditions

10.Do not use heater if any part has been under water. Immediately call a qualified service technician to inspect the room heater and to replace any part of the control system and any gas control which has been under water.

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SAFETY

Continued

11.Turn off and unplug heater and let cool before servicing. Only a qualified service person should service and repair heater.

12.Operating heater above elevations of

4,500 feet (1,371 m) could cause pilot outage.

13.To prevent performance problems, do not use propane/LP fuel tank of less than 100 lbs. (45 kg) capacity.

14.Before using furniture polish, wax, carpet cleaner or similar products, turn heater off.

If heated, the vapors from these products may create a white powder residue within burner box or on adjacent walls or furniture.

15.Provide adequate clearances around air openings.

Local Codes

Install and use heater with care. Follow all

 

State of Massachusetts: The installa-

local codes. In the absence of local codes,

tion must be made by a licensed plumber

use the latest edition of The National Fuel

or gas fitter in the Commonwealth of

Gas Code ANSI Z223/NFPA 54*.

Massachusetts.

*Available from:

Sellers of unvented propane or natural

American National Standards Institute, Inc.

gas-firedsupplemental room heaters shall

1430 Broadway

provide to each purchaser a copy of 527

New York, NY 10018

CMR 30 upon sale of the unit.

National Fire Protection Association, Inc.

Vent-freegas products are prohibited for

Batterymarch Park

bedroom and bathroom installation in the

Quincy, MA 02269

Commonwealth of Massachusetts.

 

 

Product

Identification

Control Knob

Ignitor Button

Grill

Guard

Plaque

Front Panel

Heater Cabinet

Figure 1 - Vent-FreeGas Heater (actual heater may vary from illustration

Unpacking

1.Remove heater from carton.

2.Remove all protective packaging applied to heater for shipment.

3.Check heater for any shipping damage. If heater is damaged call FMI PRODUCTS,

LLC at 1-866-328-4537for replacement parts before returning to dealer.

Product Features

Safety Device

This heater has a pilot with an Oxygen Depletion Sensing (ODS) safety shutoff system.The

ODS/pilot is a required feature for vent-freeroom heaters. The ODS/pilot shuts off the heater if there is not enough fresh air.

Ignition System

Some models are equipped with a piezo ignitor that requires no matches, batteries or other sources to light heater.

Other heaters are equipped with an electronic ignitor to light heater fuel supply.

Thermostatic Heat Control

(Thermostat Models Only)

Thermostat models have a thermostat sensing bulb and a control valve.This results in the greatest heater comfort. This can also result in lower gas bills.

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Air For Combustion and Ventilation

WARNING: This heater shall notbeinstalledinaroomorspace unlesstherequiredvolumeofindoor combustion air is provided by the method described in the

National Fuel Gas Code, ANSI Z223.1/NFPA54,theInternational Fuel Gas Code,or applicable localcodes.Readthefollowinginstructionstoinsureproperfresh airforthisandotherfuel-burning appliances in your home.

Today’s homes are built more energy efficient than ever. New materials, increased insulation and new construction methods help reduce heat loss in homes. Home owners weather strip and caulk around windows and doors to keep the cold air out and the warm air in. During heating months, home owners want their homes as airtight as possible.

While it is good to make your home energy efficient, your home needs to breathe. Fresh air must enter your home.All fuel-burningappliances need fresh air for proper combustion and ventilation.

Exhaust fans, heaters, clothes dryers and fuel burning appliances draw air from the house to operate. You must provide adequate fresh air for these appliances. This will insure proper venting of vented fuel-burningappliances.

PROVIDING ADEQUATE VENTILATION

The following are excerpts from National Fuel Gas Code. ANSI Z223.1/NFPA 54, Air for Combustion and Ventilation.

All spaces in homes fall into one of the three following ventilation classifications:

1.Unusually Tight Construction

2.Unconfined Space

3.Confined Space

The information on pages 5 through 7 will help you classify your space and provide

adequate ventilation.

Unusually Tight Construction

The air that leaks around doors and windows may provide enough fresh air for combustion and ventilation. However, in buildings of unusually tight construction, you must provide additional fresh air.

Unusually tight construction is defined as construction where:

a.walls and ceilings exposed to the outside atmosphere have a continuous water vapor retarder with a rating of one perm (6x10-11 kg perpa-sec-m2)or less with openings gasketed or sealedand

b.weather stripping has been added on openable windows and doors and

c.caulking or sealants are applied to areas such as joints around window and door frames, between sole plates and floors, between wall-ceilingjoints, between wall panels, at penetrations for plumbing, electrical and gas lines and at other openings.

If your home meets all of the three criteria above,youmustprovideadditionalfreshair.

See Ventilation Air From Outdoors, page 7.

If your home does not meet all of the three criteria above, proceed to Determining

Fresh-Air Flow For Heater Location.

Confined Space and Unconfined Space

The National Fuel Gas Code ANSI Z223.1/ NFPA 54defines a confined space as a space whose volume is less than 50 cubic feet per 1,000 Btu per hour (4.8 m3 per kw) of the aggregate input rating of all appliances installed in that space and an unconfined space as a space whose volume is not less than 50 cubic feet per 1,000 Btu per hour (4.8 m3 per kw) of the aggregate input rating of all appliances installed in that space. Rooms communicating directly with the space in which the appliances are installed*, through openings not furnished with doors, are considered a part of the unconfined space.

* Adjoining rooms are communicating only if there are doorless passageways or ventilation grills between them.

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AIR FOR COMBUSTION AND VENTILATION

Continued

DETERMINING FRESH-AIRFLOW FOR Heater LOCATION

Determining if You Have a Confined or

Unconfined Space

Use this work sheet to determine if you have a confined or unconfined space.

Space: Includes the room in which you will install heater plus any adjoining rooms with doorless passageways or ventilation grills between the

rooms.

1.Determine the volume of the space (length x width x height).

Length x Width x Height =__________cu. ft. (volume of space)

Example: Space size 20 ft. (6.1m) (length) x 16 ft. (4.88m) (width) x 8 ft. (2.44 m) (ceiling height) = 2,560 cu. ft. (72.49 m2)(volume of space)

If additional ventilation to adjoining room is supplied with grills or openings, add the volume of these rooms to the total volume of the space.

2.Multiply the space volume by 20 to determine the maximum Btu/Hr the space can support.

_ ________ (volume of space) x 20 = (Maximum Btu/Hr the space can support)

Example: 2,560 cu. ft. (72.49 m2) (volume of space) x 20 = 51,200 (maximum Btu/Hr the space can support)

3.Add the Btu/Hr of all fuel burning appliances in the space.

Vent-freeheater

__________ Btu/Hr

Gas water heater*

__________ Btu/Hr

Gas furnace

__________ Btu/Hr

Vented gas heater

__________ Btu/Hr

Gas heater logs

__________ Btu/Hr

Other gas appliances* +__________ Btu/Hr Total =__________ Btu/Hr

* Do not include direct-ventgas appliances.Direct-ventdraws combustion air from the outdoors and vents to the outdoors.

Example:

40,000

 

Gas water heater

Btu/Hr

Vent-freeheater

20,000

 

+__________ Btu/Hr

Total

= 60,000

Btu/Hr

4.Compare the maximum Btu/Hr the space can support with the actual amount of Btu/ Hr used.

_ _______ Btu/Hr (maximum can support)

_ _______ Btu/Hr (actual amount used)

Example: 51,200 Btu/Hr (maximum the space can support)

60,000 Btu/Hr (actual amount of Btu/Hr used)

The space in the example is a confined space because the actual Btu/Hr used is more than the maximum Btu/Hr the space can support. You must provide additional fresh air. Your options are as follows:

A.Rework worksheet, adding the space of an adjoining room. If the extra space provides an unconfined space, remove door to adjoining room or add ventilation grills between rooms. See Ventilation Air From Inside Building.

B.Vent room directly to the outdoors. See

Ventilation Air From Outdoors, page 7.

C.Install a lower Btu/Hr heater, if lower Btu/Hr size makes room unconfined.

If the actual Btu/Hr used is less than the maximum Btu/Hr the space can support, the space is an unconfined space. You will need no additional fresh air ventilation.

WARNING:Iftheareainwhich theheatermaybeoperateddoes notmeettherequiredvolumefor indoorcombustionair,combustion and ventilation air shall be provided by one of the methods described in theNational Fuel GasCode,ANSIZ223.1/NFPA54, theInternational Fuel Gas Code, or applicable local codes.

VENTILATION AIR

Ventilation Air From Inside Building

This fresh air would come from an adjoining unconfined space. When ventilating to an adjoining unconfined space, you must provide two permanent openings: one within 12" (30.5 cm) of the ceiling and one within 12" (30.5 cm) of the floor on the wall connecting the two spaces (see options 1 and 2, Figure 2, page 7). You can also remove door into adjoining room (see option 3, Figure 2, page 7). Follow the National Fuel Gas Code, ANSI Z223.1/ NFPA 54, Air for Combustion and Ventilation for required size of ventilation grills or ducts.

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AIR FOR COMBUSTION AND VENTILATION

 

12"

 

Ventilation Grills

Ventilation

Into Adjoining Room,

Option 2

Grills into

Or

Adjoining

Remove

Room,

Door into

Option 1

Adjoining

 

Room,

 

Option 3

Continued

ing and one within 12" (30.5 cm) of the floor. Connect these items directly to the outdoors or spaces open to the outdoors.These spaces includeattics andcrawlspaces. Follow the National Fuel Gas Code, ANSI Z223.1/NFPA 54,

Air for Combustion and Ventilation for required size of ventilation grills or ducts.

IMPORTANT: Donotprovideopeningsforinlet or outlet air into attic if attic has a thermostatcontrolled power vent. Heated air entering the attic will activate the power vent.

12"

Figure 2 - Ventilation Air from Inside Building

Ventilation Air From Outdoors

Provideextrafreshairbyusingventilationgrills or ducts. You must provide two permanent openings: one within 12" (30.5 cm) of the ceil-

 

Outlet

Ventilated

 

Attic

 

Air

 

 

Outlet

 

 

Air

 

To Attic

 

 

 

 

To

 

 

Crawl

Inlet

 

Space

 

 

Air

 

 

 

Inlet Air

Ventilated

 

Crawl Space

 

 

Figure 3 - Ventilation Air from Outdoors

Installation

NOTICE: This heater is intended for use as supplemental heat. Use this heater along with your primary heating system. Do not install this heater as your primary heat source. If you have a centralheatingsystem,youmay run system’s circulating blower whileusingheater.Thiswillhelp circulatetheheatthroughoutthe house. In the event of a power outage, you can use this heater as your primary heat source.

WARNING: A qualified service person must install heater. Follow all local codes.

WARNING: This appliance is equipped for either natural gas or propane/LPgas but not both. Gas typeisindicatedontheratingplate. Field conversion is not permitted.

CHECK GAS TYPE

Use only the correct gas type (natural or propane/LP) for your unit. If your gas

supply is not correct, do not install heater. Call dealer where you bought heater for proper type heater.

INSTALLATION ITEMS

Before installing heater, make sure you have the items listed below.

for propane/LP gas, external regulator (supplied by installer)

piping (check local codes)

sealant (resistant to propane/LP gas)

equipment shutoff valve *

ground joint union

sediment trap

tee joint

pipe wrench

for natural gas, test gauge connection*

hardware packet (included)

-wall anchor (4) 095112-02

-red key (1) 095116-01

-pan head screw, black (4) 097403-02

-nylon spacer (2) 099064-02

-clip (1) 099123-01

-Phillips head screw, silver (4) 100159-02

*An equipment shutoff valve with 1/8" NPT tap is an acceptable alternative to test gauge connection. The optional equipment shutoff valve can be purchased from your dealer.

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INSTALLATION

Continued

LOCATING HEATER

This heater is designed to be mounted on a wall.

WARNING: Maintain the minimum clearances shown in Figure 4. If you can, provide greater clearances from floor, ceiling and joining wall.

You can locate heater on floor, away from a wall. An optional floor mounting stand is needed. Purchase the floor mounting stand from your dealer. See Accessories, page 27, if stand is not included with your heater.

WARNING: Never install the heater

in a bedroom or bathroom

in a recreational vehicle

wherecurtains,furniture,clothingorotherflammableobjects are less than 36" (91.5 cm) from the front, top or sides of the heater

as a fireplace insert

in high traffic areas

in windy or drafty areas

CAUTION: If you install the heater in a home garage

heater pilot and burner must beatleast18"(45.7cm)above floor

locate heater where moving vehicle will not hit it

CAUTION: This heater creates warm air currents. These currents move heat to wall surfaces next to heater. Installing heater next to vinyl or cloth wall coverings or operating heater where impurities (such as, but not limited to, tobacco smoke, aromaticcandles,cleaningfluids, oilorkerosenelamps,etc.)inthe air exist, may discolor walls or cause odors.

IMPORTANT:Vent-freeheaters add moisture to the air.Although this is beneficial, installing heater in rooms without enough ventilation air may cause mildew to form from too much moisture. SeeAir for Combustion and Ventilation, page 5. If high humidity is experienced, a dehumidifier may be used to help lower the

water vapor content in the air.

For convenience and efficiency, install heater

where there is easy access for operation, inspection and service

in coldest part of room

If not included with your heater, an optional fan kit is available from your dealer. See Accessories, page 27. If planning to use fan, locate heater near an electrical outlet (see page 16).

CEILING

 

 

10" (25.4 cm)

 

36"

 

 

Minimum

 

(91.5 cm)

From

 

Minimum

Sides Of

 

 

Heater

 

 

 

 

Right

Left

 

Side

 

 

Side

 

 

 

 

Minimum To

 

 

Top Surface

 

 

Of Carpeting,

36"

2" (5.1 cm) Tile Or Other

 

Combustible

(91.5 cm)

FLOOR

Material

Figure 4 - Mounting Clearances As

Viewed From Front of Heater

THERMOSTAT SENSING BULB

(Thermostat Models Only)

The thermostat sensing bulb has been placed below the heater.

1.Place clip on thermostat sensing bulb as shown in Figure 5. Clip is provided in hardware package.

2.Snapclipintouppermountingholeasshown inFigure5.Mountingholeislocatedonlower left edge on back of heater. Make sure thermostat sensing bulb is pointing up.

Thermostat

Sensing

Bulb

Clip

Figure 5 - Attaching Thermostat Sensing

Bulb

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INSTALLATION

Continued

INSTALLING HEATER TO WALL

Mounting Bracket

Locate mounting bracket in heater carton. Remove mounting bracket from heater carton.

Marking Screw Locations

1.Tape mounting bracket to wall where heater will be located. Make sure mounting bracket is level.

Figure 6 - Mounting Bracket

Removing Front Panel Of Heater

1.Remove the four painted screws, two on each side of front panel.

2.Pull bottom of front panel forward, then out.

3.Remove any remaining packaging materials.

Front Panel

Screw

 

Figure 7 - Removing Front Panel of Heater (actual heater may vary from Illustration)

Methods For Attaching Mounting Bracket

To Wall

Only use last hole on each end of mounting bracket to attach bracket to wall. These two holes are 14" (35.6 cm) apart from their centers. Attach mounting bracket to wall in one of two ways:

1.Attaching to wall stud

2.Attaching to wall anchor

Attaching to Wall Stud: This method provides the strongest hold. Insert mounting screws through mounting bracket and into wall studs.

Attaching to Wall Anchor: This method allows you to attach mounting bracket to hollow walls (wall areas between studs) or to solid walls (concrete or masonry).

Decide which method better suits your needs.

Either method will provide a secure hold for the mounting bracket.

WARNING:Maintainminimum clearances shown in Figure 8. If youcan,providegreaterclearances from floor and joining wall.

2.Mark screw locations on wall (see Figure 8).

Note: Only mark last hole on each end of mounting bracket. Insert mounting screws through these holes only.

3.Removetapeandmountingbracketfromwall.

 

12"

14"

 

 

Min.

 

AdjoiningWall

 

Only Insert Mounting

19 3/4"

Screws Through Last

 

 

Hole On Each End

Min.

Floor

3 Plaque Heater

16"

14"

Min.

 

WallAdjoining

Only Insert Mounting

19 3/4"

Screws Through Last

 

Hole On Each End

Min.

 

 

Floor

5 Plaque Heaters

Figure 8 - Mounting bracket Clearances

Attaching Mounting Bracket To Wall

Note: Wall anchors, mounting screws and spacers are in hardware package. The hardware package is provided with heater.

Attaching To Wall Stud Method

For attaching mounting bracket to wall studs

1. Drill holes at marked locations using 9/64" drill bit.

2. Place mounting bracket onto wall. Line up last hole on each end of bracket with holes drilled in wall.

3. Insert mounting screws through bracket and into wall studs.

4. Tighten screws until mounting bracket is firmly fastened to wall studs.

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INSTALLATION

Continued

Attaching To Wall Anchor Method

For attaching mounting bracket to hollow walls (wall areas between studs) or solid walls (concrete or masonry)

1.Drill holes at marked locations using 5/16" drill bit. For solid walls (concrete or masonry), drill at least 1" (2.5 cm) deep.

2.Fold wall anchor as shown in Figure 9.

3.Insert wall anchor (wings first) into hole. Tap anchor flush to wall.

4.For thin walls [1/2" (1.3 cm) or less], insert red key into wall anchor. Push red key to “pop” open anchor wings. IMPORTANT: Do not hammer key! For thick walls [over 1/2" (1.3 cm) thick] or solid walls, do not pop open wings.

5.Place mounting bracket onto wall. Line up last hole on each end of bracket with wall anchors.

6.Insert mounting screws through bracket and into wall anchors.

7.Tighten screws until mounting bracket is firmly fastened to wall.

3.Remove heater from mounting bracket.

4.If installing bottom mounting screws into hollow or solid wall, install wall anchors. Follow steps 1 through 4 under Attaching To Wall Anchor Method.

If installing bottom mounting screw into wall stud, drill holes at marked locations using 9/64" drill bit.

5.Replace heater onto mounting bracket.

6.Place spacers between bottom mounting holes and wall anchor or drilled hole.

7.Hold spacer in place with one hand. With other hand, insert mounting screw through bottom mounting hole and spacer. Place tip of screw in opening of wall anchor or drilled hole.

8.Tighten both screws until heater is firmly secured to wall. Do not over tighten.

Note: Do not replace front panel at this time. Replace front panel after making gas connections and checking for leaks (see page 11).

Front View

Figure 9 - Folding

Figure 10 - Popping

Anchor

Open Anchor Wings

 

for Thin Walls

Placing Heater On Mounting Bracket

1.Locate two horizontal slots on back panel of heater.

2.Place heater onto mounting bracket. Slide horizontal slots onto stand-outtabs on mounting bracket.

Horizontal Slots

Mounting Bracket

(attached

to wall)Stand-OutTab

Figure 11 - Mounting Heater onto Mounting Bracket

Installing Bottom Mounting Screws

1.Locate two bottom mounting holes. These holes are near bottom on back panel of heater (see Figure 12).

2.Mark screw locations on wall.

Heater

Wall

 

Spacer

Side View

Figure 12 - Installing Bottom Mounting

Screws

Mounting heater to floor With optional floor kit

Mounting Base Feet to Heater

Note: A 90° elbow is required for mounting this unit and must be installed BEFORE base feet to provide proper clearance (see Figure 15, page 12).

1.Lay heater cabinet on its back on a table with the heater bottom overhanging table edge.

2.Apply pipe joint sealant lightly to male NPT threads of elbow. Hold pressure regulator with a wrench when connecting elbow. Do not overtighten elbow to regulator. Regulator body could be damaged.

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