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NOTE: DIAGRAMS & ILLUSTRATION NOT TO SCALE.
2
Building Supplies Should Include:
Framing materials
Wall finishing materials
Caulking materials (noncombustible)
Fireplace surround materials
Check the inventory list to be sure that you have
all the necessary parts in usable condition. Also
check for concealed damage.
IMPORTANT SAFETY INFORMATION
INSTALLER: PLEASE LEAVE THESE INSTRUC-
TIONS WITH THE OWNER.
STATE OF MASSACHUSETTS: THE INSTAL-
LATION MUST BE MADE BY A LICENSED
PLUMBER OR GAS FITTER IN THE COMMON-
WEALTH OF MASSACHUSETTS.
OWNER: PLEASE RETAIN THESE INSTRUC-
TION FOR FUTURE REFERENCE.
IMPORTANT: BEFORE STARTING YOUR
HEATER INSTALLATION, READ THESE INSTAL-
LATION INSTRUCTIONS CAREFULLY TO BE
SURE YOU UNDERSTAND THEM COMPLETELY
AND IN ENTIRETY. FAILURE TO FOLLOW
THESE INSTRUCTIONS COULD CAUSE A
HEATER MALFUNCTION RESULTING IN SERI-
OUS INJURY AND/OR PROPERTY DAMAGE.
TABLE OF CONTENTS
General Information......................... page 2
Inventory ......................................... page 2
Tools and Building Supplies ............ page 2
Installation Applications .................. page 2
Important Safety Information .......... page 2
Codes .............................................. page 3
Combustion and Ventilation Air ....... page 3
Location of Fireplace ....................... page 4
Clearances ....................................... page 4
Preinstallation.................................. page 5
Installation – Built-In ....................... page 5
Finished Wall Details ....................... page 6
Electrical Wiring – Optional Blower . page 7
Connecting Gas Line........................ page 7
Gas Pressure Check......................... page 7
Installation – Surround .................... page 8
Log Assembly.................................. page 9
Flame Appearance ........................... page 9
Optional Equipment ......................... page 10
Blower Kit ........................................ page 10
Cleaning and Servicing .................... page 11
Replacement Parts .......................... page 11
Accessories/Components ................ page 12
Appliance Specifications.................. page 13
Troubleshooting Guide .................... page 15
Operating Instructions ..................... page 16
Replacement Parts List.................... page 19
Warranty.......................................... page 20
Valve Regulator Pressure Gas Inlet
Model No. Gas Type Maximum BTU/HR Operation Ignition Setting Pressure
VFST-CMN-2 Natural 27,000 Low Millivolt with Piezo 5" w.c. Max 10 ¹⁄₂" w.c.
VFPF-CMN-2 34,000 High Flame Control Min. 6" w.c.
VFST-CMP-2 Propane/ 27,000 Low Millivolt with Piezo 10" w.c. Max 13" w.c.
VFPF-CMP-2 LPG 34,000 High Flame Control Min. 11" w.c.
UNVENTED GAS ROOM HEATER SPECIFICATIONS AND TECHNICAL DETAILS
Note: Test gage connections are provided on the front of the gas control valve (identified A for the manifold side and E for inlet pressure).
A spark ignition system (piezo) allows the heater
pilot gas to be lit without the use of matches or
batteries and permits operation of the heater
during a power outage.
These heaters are fitted with a specially de-
signed pilot (ODS) which responds to the
amount of oxygen available in the room and
shuts the heater off before the oxygen level
drops below 18%. The pilot can be relit only
when fresh air is available. Refer to the Com-
bustion and Ventilation Air section.
The VFST and VFPF Series Unvented Room
Heaters must be built into a framed wall.
This heater has been tested to the standards of
ANSI Z21.11.2 unvented heaters.
Do not install these unvented room heaters in
a bedroom or bathroom as all units exceed
maximum allowable BTU/Hr input of 10,000.
Inventory
Unvented Gas Fireplace
Installation and Operating Instructions
Tools and Building Supplies
Normally Required
Tools Should Include:
Phillips screwdriver
Hammer
Saw and/or Sabersaw
Measuring tape
Electric drill and bits
Pliers
Square
Piping complying with local codes
Pipe wrench
Tee joint
Pipe compound
GENERAL INFORMATION
The VFST and VFPF Series Unvented Room
Heaters covered in this manual feature a unit-
ized set of eight (8) ceramic fiber split logs.
These heaters have a standing pilot and may be
manually controlled through the use of an on/
off wall switch or wall thermostat or any com-
bination of both of them.
WARNING: FAILURE TO COMPLY WITH
THE INSTALLATION AND OPERATING
INSTRUCTIONS PROVIDED IN THIS
DOCUMENT WILL RESULT IN AN IM-
PROPERLY INSTALLED AND OPERAT-
ING UNVENTED ROOM HEATER, VOID-
ING ITS WARRANTY. ANY CHANGE TO
THIS HEATER AND/OR ITS OPERATING
CONTROLS IS DANGEROUS. IMPROPER
INSTALLATION OR USE OF THIS HEATER
CAN CAUSE SERIOUS INJURY OR DEATH
FORM FIRE, BURNS, EXPLOSION OR
CARBON MONOXIDE POISONING.