DELTA FUSION Owner's Manual
4
RSF Woodburning Fireplaces
GENERAL SPECIFICATIONS
The DELTA FUSION fireplace offers more than 500 sq. inches of pure fire viewing which defines it as a "Fireplace"
under the United States Environmental Protection Agency (EPA) 2015 regulations.
It is also environmentally friendly, and meets the 2020 United States Environmental Protection Agency (EPA)
particulate emission standard with crib wood at an emission rate of 1.3 grams per hour.
The DELTA FUSION has an efficiency of 60%. This has been established using the higher heating value of the
wood, using data from a crib wood EPA emission test and using CSA B415.1-10 calculations.
It has been shown to deliver heat ranging from 40 000 to 95 000 BTU/h with an average of 70 000BTU/h. Please
refer to the "Improving efficiency", the "Importance of draft", the "Burn Time vs Heat Output" and the "Fuel" sections
to better understand the various factors that influence the efficiency and heat output of your fireplace.
THE COMBUSTION CONTROL SYSTEM
Since the door is sealed, air for combustion comes through the DELTA FUSION's air control. The draft control is an
assembly that increases or reduces the amount of air permitted into the firebox. A bi-metallic coil in the air control
allows more air when the unit is cold, and less air when the unit is hot, guarding against overheating. The air control
is fully automatic; there is no user access to the air control.
Control the fire as you would any normal fireplace, using one or two logs at a time for a smaller fire, or more logs
for more heat. Remember: when the fireplace is hot, the automatic air control will reduce the combustion air inlet
since the bi-metallic coil will shut the air control damper part way.
OPTIONS
Rock Retainer Kit
To simplify the installation of thin non-combustible materials such as ceramic tile or sliced brick, we have designed
a rock retainer kit (FO-KD3). It is not designed or required for full brick or stone. The rock retainer kit is composed
of metal lath and a metal finishing edge to provide texture to the facing of the fireplace, improving the hold of mortar.
Internal Blower
For increased air circulation and marginally more heat output, you can add the Circulating Internal Blower (FO-
FDHB5-N) to your DELTA FUSION.
Gravity Vent
Gravity vents distribute hot air through ducts connected to the top of the fireplace and do not require a blower. If
you have any rooms directly above or adjacent to the room with the fireplace that you would like to heat, you may
want to consider the Gravity Vent Kit (FO-V2). You can install one or two gravity vent kits. If you chose to install
only one, we recommend installing it on the left side. If you prefer a different look for your gravity vent(s) you can
change the grill(s) for a contemporary vent grill (FO-VGC).
Central Heat Blower
To maximize the distribution of the heat generated by your DELTA FUSION fireplace throughout many rooms and
different floors, consider the Central Heat Option. With our Central Heat Blower (FO-FDHB6-1), you can connect to
existing central heating ducts or run dedicated ducts to circulate the fireplace heat to one or many rooms. The
Central Heat Control (FO-FDHC6) will automatically control the Central Heat Blower via a wall thermostat and
thermal switch. The Zone Heat Control (FO-FDHCZ1) along with Zone Damper Kits (FO-FDHCZ2) will provide the
same features as the Central Heat Control but for more than one heating zone.
NOTE
: Many options require wiring and/or electricity for their installation. If there is any chance that any of these
options will be installed in the future then suitable wiring should be run during framing. Otherwise, it will be difficult
to install these options later.
Detailed installation instructions are included in the box with each option. These can also be obtained from our
Internet Web Site: www.icc-rsf.com.
