The ventilator is automatically shut down if the
heater casing cools
down to less than 35 °C.
4. Fuel parameters
HINT!
The wood should be seasoned for at least a
year. Wood humidity exceeding 25% can
cause energy losses and damage to the
heater body.
It is permitted to use replacement fuels with different
quality parameters and of a different granularity as
additions to the basic fuel (up to 10% with respect to
the wood chunk volume), such as waste wood.
When burning small pieces of fire wood note that
they should be separated by large fuel wood chunks.
NOTE!
The NPS series heater is not a furnace for
burning waste, and fuel that is forbidden may
not be burned in it.
NOTE!
Permanent use of certain wet fuel types, with
simultaneous maintenance of low combustion
gas temperature (less than 160 °C) will cause
faster
wear of the heater body, corrosion of the
convection ducts, the flue and tar deposits in the
combustion chamber. This is caused by
condensation of the combustion products: water,
nitrogen oxides and sulphur oxides, which
together form a very aggressive environment
facilitating faster corrosion.
As replacement fuel there may also be used a mix of
nut coal of class 24/12 at 70% with coal dust
of class
21/15 at 30% according to the standards indicated
above.
5. Heater technical data
Rated power
35 kW
70 kW
Power supply
230 V 50 Hz
400 V 50 Hz
Energy consumption
1.2 A
1.6 A
Fan air flow
5500 m3/h
12500 m3/h
Width
600 mm
780 mm
Length
1000 mm
1250 mm
Height with head
1400+500 mm 1720+550 mm
Combustion rack chamber dia.
450 mm
620-mm
Combustion rack chamber height
680 mm
860 mm
Smoke stack diameter
150 mm
180 mm
Weight
200 kg
280 kg
Ventilation head rotation
Yes
Yes
Fuel
Wood/coal
Wood/coal
Burner installation option
Yes
Yes
6. Heater transport and assembly
6.1. Transport and storage
The heater units are delivered assembled on pallets,
packed in film.
Use appropriate lifting equipment to raise and lower
the heater. Before transporting the heater, it should
be protected against shifting and tilting on the
vehicle platform by means of belts, chocks or
wooden blocks
The basic fuel for
FHSPN
heaters is fuel wood in
chunks. It should be seasoned under a roof for a
period of at least two years at a humidity level of 15-
20%.
Air heater
FHSPN
35
FHSPN
70
As replacement fuel for
FHSPN
type air heaters,
energy coal may be used, nut type, classes 24/12,
type 31-2, according to standard PN-91/G-04510.
The indicated designation of 24/12 concerning fuel
characteristics determines the calorific value to be
approx. 24000 kJ/kg with an ash content of 12%.
This type of fuel guarantees the maintenance of the
declared power values.
Summary of Contents for FHSPN 35
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