Full Product Manual
www.sureheat.com
200208-01C6
QUALIFIED INSTALLING AGENCY
Only  a  qualied  agency  should  install  and 
replace gas piping, gas utilization equipment 
or accessories, and repair and equipment ser-
vicing. The term “qualied agency” means any 
individual, rm, corporation, or company that 
either in person or through a representative 
is engaged in and is responsible for:
  a) Installing, testing, or replacing gas piping 
or
  b) Connecting, installing, testing, repairing, 
or servicing equipment; that is experienced 
in such work; that is familiar with all precau-
tions required; and that has complied with 
all the requirement of the authority having 
jurisdiction.
In  areas  that  prohibit  the  use  of  vent-free 
heaters,  the  log  set  has  been  tested  and 
approved  to  the ANSI  Z21.60  standard  for 
Vented  Decorative  Logs.  When used  as  a 
vented log set refer to additional instructions 
on page 11.
WATER VAPOR: A BY-PRODUCT OF 
UNVENTED ROOM HEATERS
Water vapor is a by-product of gas combus-
tion. An unvented room heater produces ap-
proximately one (1) ounce (30 mL) of water 
for every 1,000 BTUs (0.3 KWs) of gas input 
per hour. Unvented room heaters are recom-
mended as supplemental heat (a room) rather 
than a primary heat source (an entire house). 
In most supplemental heat applications, the 
water  vapor  does  not  create  a  problem.  In 
most applications, the water vapor enhances 
the  low  humidity  atmosphere  experienced 
during cold weather.
The following steps will help ensure that water 
vapor does not become a problem.
1.  Be sure the heater is sized properly for the 
application, including ample combustion 
air and circulation air.
2.  If high humidity is experienced, a dehu-
midier  may  be  used  to  help  lower the 
water vapor content of the air.
3.  Do not use an unvented room heater as 
the primary heat source.
AIR FOR COMBUSTION AND VENTILATION
 WARNING: This heater shall 
not  be  installed  in  a  conned 
space or unusually tight con-
struction unless provisions are 
provided for adequate combus-
tion and ventilation air. Read the 
following instructions to insure 
proper fresh air for this and 
other fuel-burning appliances 
in your home.
Today’s homes are built more energy efcient 
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 
efcient, your home needs to breathe. Fresh 
air must enter your home. All fuel-burning ap-
pliances need fresh air for proper combustion 
and ventilation.
Exhaust fans, replaces, 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-burning appli-
ances.
 WARNING: This heater 
shall not be installed in a room 
or space unless the required 
volume  of indoor  combustion 
air  is  provided  by  the  method 
described in  the National Fuel 
Gas Code, ANSI Z223.1/NFPA 
54,  the International Fuel Gas 
Code, or applicable local codes.










