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VENT FREE GAS LOG SET 

Owner’s Operation and Installation Manual

WARNING: If the information in this manual 

is not followed exactly, a 

re or explosion 

may  result  causing  property  damage,  

personal injury, or loss of life.
—  Do not store or use gasoline or other 

 

flamma

ble  vapors  and  liquids  in  the 

a

 r

o

 

s

i

h

f

o

 

y

ti

n

i

c

i

ny other appliance.

—  WHAT TO DO IF YOU SMELL GAS

 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 depa

rtment.

—  Installation  and  service  must  be  

performed  by  a  qualified  installer,  

service agency, or the gas supplier.

This is an unvented 

gas-fired

 heater. It uses 

air (oxygen) from the room in which it is 

installed. Provisions for adequate combus-

tion and ventilation air must be provided. 

Refer to page 4,  Air for Combustion and 

Ventilation. 

INSTALLER:  Leave  this  manual  with  the 

appliance.

CONSUMER: Retain this manual for future 

reference. 

This  appliance  may  be  installed  in  an  

aftermarket,*  permanently  located,  manu-

factured (mobile) home, where not prohib-

ited by local codes.

This appliance is only for use with the type of

 gas indicated on the rating plate. This app-

liance is not convertible for use with other

gases.

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

the manufacturer

This appliance has been tested and approved 

under ANSI Z21.11.2–2011 Unvented Gas- 

 

Fired Room Heaters.

WARNING: This appliance is for installation

only in a solid fuel burning masonry or UL127

factory-built fireplace or listed ventless fire-

box enclosure. It has been design certified for

these installations. EXCEPTION: DO NOT in-

stall this appliance in a factory-built fireplace

that includes instruction stating it has not

been tested or should not be used with un-

vented gas logs.

(S,B)VFM18NG

(S,B)VFM18LP

(S,B)VFM24NG

(S,B)VFM24LP

 Also Design-Certified As Vented Decorative Appliances

(S,B)IVFMV18NG

(S,B)IVFMV18LP

(S,B)IVFMV24NG

(S,B)IVFMV24LP

ANSI Z21.11.2 - 2011

  Unvented Heaters

ANSI Z21.60 - 2004

  Vented Decorative

Summary of Contents for BIVFMV18LP

Page 1: ...tion INSTALLER Leave this manual with the appliance CONSUMER Retain this manual for future reference This appliance may be installed in an aftermarket permanently located manu factured mobile home where not prohib ited by local codes This appliance is only for use with the type of gas indicated on the rating plate This app liance is not convertible for use with other gases Aftermarket Completion o...

Page 2: ...blow directlyintotheappliance Avoidanydrafts that alter burner flame patterns Ceiling fans can create drafts that alter burner flamepatterns Alteredburnerpatternscan cause sooting WARNING Do not use a blower insert heat exchanger insert or other accessory not approved for use with this appliance Due to high temperatures the appliance should be located out of traffic and away from furniture and draper...

Page 3: ...ance has an Oxygen Depletion Sensing ODS safety shutoff system The ODS shuts down the fireplace if not enough fresh air is available See Air for Combustion and Ventilation pages 4 through 6 If appliance keeps shutting off see Troubleshooting pages 17 through 20 11 Do not run appliance where flammable liquids or vapors are used or stored under dusty conditions 12 Do not use this appliance to cook fo...

Page 4: ...TATIC HEAT CONTROL Thermostat controlled models have a thermostat sensing bulb and a control valve The thermostat will automatically modulate the heat output to maintain a consistent room temperature This results in greater heater comfort This can also result in lower gas bills PROVIDING ADEQUATE VENTILATION The following are excerpts from National Fuel Gas Code ANSI Z223 1 NFPA 54 Section 5 3 Air...

Page 5: ... ducts You must provide two permanent openings one within 12 of the ceiling and one within 12 of the floor Connect these items directly to the outdoors or spaces open to the s e c a p s l w a r c d n a s c i t t a e d u l c n i s e c a p s e s e h T s r o o d t u o Follow the National Fuel Gas Code ANSI Z223 1 NFPA 54 Section 5 3 Air for Combustion and Ventilation for required size of ventilation g...

Page 6: ...can support the space is an unconfined space You will need no additional fresh air ventilation 39 000 40 000 79 000 AIR FOR COMBUSTION AND VENTILATION WARNING If the area in which the heater may be operated does not meet the required volume for indoor combustion air combustion and ventilation air shall be provided by one of the methods described intheNationalFuelGasCode ANSIZ223 1 NFPA 54 the Inter...

Page 7: ...s is beneficial installing appliance in rooms without enough ventilation air may cause mildew to form from too much moisture See Air for Combustion and Ventilation page 4 CHECK GAS TYPE Use the correct gas type natural or propane LP for your appliance If your gas supply is not correct or if you do not know your gas type do not install appliance INSTALLATION ITEMS NEEDED Before installing appliance ...

Page 8: ...gulator damage could occur For propane LP gas the installer must supply an external regulator The external regulator will reduce incoming gas pressure Youmustreduceincominggaspressuretobetween 11 and 14 of water If you do not reduce incoming gas pressure heater regulator damage could occur Install the external regulator with the vent pointing down as shown in Figure 4 Pointing the vent down protec...

Page 9: ...nd that you install a sediment trap in supply line as shown in Figure 5 Locate sediment trap where it is within reach for cleaning Install in piping system between fuel supply and appliance Locate sediment trap where trapped matter is not likely to freeze A sediment trap traps moisture and contaminants This keeps them from going into appliance gas controls If sediment trap is not installed or is i...

Page 10: ... on or near gas meter of natural gas or using compressed air 3 Check all joints from gas meter to equipment shutoff valve for natural gas or propane LP supply to equipment shutoff valve for propane LP Apply noncorrosive leak detection fluid to all joints Bubbles forming show a leak 4 Correct all leaks at once CONTINUED 10 OPTIONAL REMOTE CONTROL SET INSTALLATION AND SET UP Install three 3 AAA batte...

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Page 13: ...Log Placement CVO 18 24 30 MV 18 24 VFM And OVM22 13 ...

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Page 18: ...IMPORTANT Check and make sure the logs are clear of The burner flame Flames touching the logs can produce soo ng 18 ...

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Page 23: ...23 20 20 Tube Main Gas Supply WIP 120 90414 WIP 120 90414 WIP 120 90414 Main gas tube may be carefully bent into needed shape ...

Page 24: ...24 13 Gas supply tube may be carefully bent into needed shape ...

Page 25: ...national s Technical Service Department at 800 229 5647 When calling please have your model and serial numbers of your heater ready You can also visit SHM International s Technical Service web site at www sureheat com SERVICE INFORMATION SPECIFICATIONS Model VFM18NG Gas Type Input Max Input Min Manifold Pressure Inlet Pressure Max Inlet Pressure Min Min Firebox Size Natural Gas Natural Gas Propane...

Page 26: ...ion rust or discoloring of any kind use or installation contrary to instructions and applicable building codes including heating the product to temperatures above its rated specifications which can cause considerable warping disassembly including removal of the product from a built in installation damage resulting from accident alteration misuse abuse hostile environments or improper installation r...

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