Kozlusan SLIMPEL, Owner'S Manual

Page: 7 / 21

Page 7
Fluid Flow through the Heating system
1. KOZLUSAN heating systems recommends a mixture of water and propylene glycol as a heat
transfer fluid. Glycol is a non-toxic solution that works like the antifreeze in your car to prevent
corrosion and freezing.
2. A pump pushes fluid around the heat transfer jacket which absorbs heat from the combustion gases.
The fluid exits the internal manifold at about 80-85
º
C.
3. The fluid flows past an aquastat (water thermostat) that regulates the burn rate of the heating system
in conjunction with the flue gas temperature sensor that measure the temperature in the flue. This
information is used to determine the amount of air and fuel being used to ensure efficient heat
transfer and to ensure the fan does not simply blow the heat up the flue. The heated fluid is used to
transfers the heated fluid to your home system where it provides warmth to your home, garage,
basement and other structures; preheats your domestic hot water; heats your pool; and/or melts snow
on your driveway.
4. Having transferred the heat to the home system, the fluid exits the external heat exchanger and
repeats its path through the internal manifold.