Technical PanTherm PT80 User manual

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Instructions for use
1. Installation guide
The firebox must definitely be installed by a professionally qualified
and duly authorized specialist for firebox life, safety and proper
operation. Otherwise the guarantee is null and void.
1.1. Chimney
The chimney must meet the criteria prescribed by currently
effective standards:
ONLY a chimney inspected and approved by the competent
authority is accepted.
The apparatus is only allowed to be connected to a chimney
with identical or larger diameter compared to that of the smoke
exit.
At the connection, the diameter of the chimney is not allowed
to be reduced in the direction of flue gas flow.
The chimney must be properly cleaned.
NO solid fuel-fired apparatus is allowed to be connected to a
chimney with gas-fuelled equipment.
Only one appliance is allowed to be connected to a single
chimney.
The chimney must have an appropriate draught output.

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1.2. Cover:
The firebox should always be installed and built in by a specialist, in
compliance with the applicable requirements.
Fireboxes may only be operated with an appropriate cover in place.
Even heat delivery must be ensured at installation (with an even air
flow around the firebox): the air gap between the fireplace cover and
the firebox should be at least 2-3 mm sideways at the door frame, then
a minimum of 5 cm towards the wall. There should be a minimum of 5
mm at the top, between the firebox and the mantelpiece and a
minimum of 5 cm between the firebox and the wall; a distance of at
least 5 cm must be kept from the upper cone of the firebox; it should
rather be 10 cm if allowed by the cover.
IMPORTANT: air flow must be ensured both at the bottom and at
the top by an aperture or ventilation grid of appropriate size, the
unobstructed dimensions of which should be minimum 30 cm2 per
kW both at the bottom and the top. Their installation is a basic
requirement.
ATTENTION: in case of LD fireboxes leave enough space for the
maintenance of the lifting mechanism.
ATTENTION: even heat delivery must be ensured to avoid firebox
overload.

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Figure 1.
Figure 2.

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Figure 3.
An operating distance should be provided for firebox inlet controls:
minimum 2 centimetres of free space must be ensured in addition to
the space visibly required for their motion.
If the criteria listed are not met, the firebox may be seriously
damaged and the guarantee is lost.
No flammable substances are allowed to be used or placed in the
proximity of the apparatus. The smallest safety distance is 100cm; heat
insulation is required for smaller distances.

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1.3. Exhaust equipment effects:
If no sufficient ventilation is ensured, exhaust equipment in the
same air space with the fireplace (including rooms behind a door
provided with a ventilation grille or rooms with doors open) may
disturb fireplace operation. Therefore exhaust devices must be
provided with the air supply indispensable for their operation.
Important: if, for instance, outward air flow is only ensured for your
vapour extraction device, it will not operate efficiently because it
cannot take in air from anywhere. E.g. an exhaust device with a
capacity of 600 cubic metres of air / hour will carry only 200 cubic
metres of air. This reduces air pressure in your living space which is less
than favourable to our general state of health. In certain cases, return
flow can occur in case of not completely closed fireboxes (smoke gets
into the living space) when out of service or when the door is opened.
In case of inadequate ventilation, the firebox glass is also increasingly
sooted.
1.4. Operation of a water jacket firebox
A firebox with a water jacket is only allowed to be operated if
connected to a water system filled up with water, designed and
installed by a heating engineer. The specialist makes sure to integrate
the firebox into the system appropriately, connected to each of the 1-
inch forward and return stubs diagonally, by plugging any unused stubs
in order to prevent overcooling for adequate efficiency. The two half-
inch stubs with external threading are the connection points for the
cooling circuit (coilpipe) to prevent water from boiling and steam
generation; they should not be plugged in case of an open system. It is
recommended to fill the firebox with soft deionized water.

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ATTENTION: the boiler protection circuit is required to be built in the
central heating system to prevent overcooling and is a condition for
guarantee provision. Precipitation of moisture and condensation water
must be prevented as they highly corrode the metal and result in tar
deposition, reduce efficiency and output, and these phenomena entail
a loss of guarantee.
ATTENTION: the 4 threaded ¾-inch studs on the firebox are to
accommodate handles.
2. Firebox structure:
PanTherm fireboxes are made of cast iron. PanTech fireboxes are
made of 4 and 5 mm thick, and PanAqua fireboxes of 5 mm thick steel
plates, constituting the firebox together with up to 700oC heat-proof
glass.
2.1. Firebox use:
Door: the firebox is not allowed to be lifted and tilted by taking hold
of the door; it is prohibited to lean on and to clutch at the door during
use as it cannot bear this load.
Glass: beware of the direct use of strong chemical cleaners on nero
glasses.
Flame deflector: PanTherm fireboxes include a casting flame
deflector for appropriate flame control, fitted into the u-shaped recess
for this purpose on the back wall in various ways according to type.
Figure 4.
The firebox is not allowed to be operated without a flame deflector.

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Grills: to ensure that the burning wood gets sufficient air through
the ash box and that the ash gets into the ash box, so the grills should
always be in the same position.
Heat-proof lining of the firebox: the vermiculite lining to protect
metal plate fireboxes (PanTech firebox family, and optional for
PanAqua fireboxes) decays when wet firewood (exceeding 15-20%
moisture content) is used, therefore wet firewood is prohibited.
Convection cover: an optional metal sheet cover (available for
PanTherm and PanTech firebox products) surrounding the firebox
casing, where firebox operation is only allowed with parallel fan use
(air flow around the firebox is slowed down by the convection cover,
therefore little heat is lost; in some cases, flow is not even started so
there is no appropriate heat delivery during operation leading to
overload. Thereby efficiency is very low and the firebox also gets
damaged, which is not a case for guarantee claims).
Overload seal: the piece part indicates with form-change or melt on
the fire, that the firebox gets heavy by overload is permitted.
3. Lighting a fire:
Definition of overload: firing a quantity of firewood exceeding the
quantity corresponding to the output of the firebox on a pro-rata basis;
and / or even heat delivery by the firebox is not ensured.
WARNING: firing a quantity of firewood exceeding the quantity
corresponding to the output of the firebox on a pro-rata basis results in
firebox overload, leading to serious firebox damage and injury to both
the cover and the chimney.

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Sudden heat shock: sudden excessive heat load in the heatup stage.
WARNING: Burning 1 kg of firewood yields about 3.65KW of heat
quantity. The maximum loadability of your firebox is yielded by dividing
the output of the firebox with 3.65, the result being the quantity (in kg)
of wood allowed to be used each hour.
E.g.: 15kW output / 3.65 = 4.1 wood / hour
Overload and sudden heat shock are prohibited, entailing a loss of
guarantee.
Only hardwood should be used for firing, such as beech, oak, locust,
ash, alder and wood from various fruit trees. The burning time of
hardwoods is longer than that of soft wood; they produce less ash and
their tar content is low. Soft wood can only be used for lighting fires.
Soft wood types (birch, lime, pine, poplar and Lombardy poplar) burn
quicker, yield large quantities of ash and their embers cool down
quickly. As they flicker quickly, it is easy to overload the firebox with
them. It is prohibited to use coniferous woods with resin content as
they burn with intense and rapid flames, and resin crystals make them
crackle and sizzle frequently with bursts of sparkles. In line with the
known dimensions of the firebox of the fireplace, firewood should be
cut into 30-60 cm long logs and stored at a place not exposed to
precipitation.
Only dry wood should be used, with a moisture content below 15-
20%, both in order to achieve best efficiency and to avoid excessive
sooting and tarring of the flue pipe and the glass.

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3.1. Procedure of lighting a fire:
-Remove any ash from previous fire; clean glass as required.
-Open the air control shutters at the bottom of the door.
-After replacing the ash tray / ash box, pile dry softwood cut into a
thumb’s width into the combustion chamber and put 3-4 kg
firewood on top of it.
-Then light a fire under the softwood using paper.
-Air for combustion must be supplied continuously through the
regulator for even heating.
-A burn-in smell may emanate from firebox inlets during the first use,
which is to discontinue after 7-8 hours of continuous firing. The
room should be aired in such a case as high concentrations of the
gases released can be injurious to health and can cause aesthetic
damage as well.
-External air supply must be ensured, especially in case of small air
space and perfectly sealed doors and windows.
Firewood (hardwood) moisture content (in %) according to
drying time on average
Fresh cut
75-78 %
1 year
35-36%
3 months
48-62%
1.5 years
18-27%
6 months
37-46%
2 years
16-24%
9 months
33-38%
2.5 years
15-24%
Freshly cut wood: 1750 Kcal/kg Dry wood: 3200 Kcal/kg
The maximum amount of firewood allowed to be placed in at the
same time is triple the amount of quantity allowed to be fired per
hour. It is permitted to be fired evenly in three hours or longer.

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3.2. Draught demand: 10-15Pa
3.3. Specially prohibited fuels
-mineral, chimney fuels (all types of coal)
-garden and agricultural waste (e.g.: twigs, corn stalks, walnut
kernels, lacquered parquet broken up or painted lumber, etc.)
-pellet and other tableted wood fuel
-combustible mineral fluids (petrol, diesel oil, chemical solvents,
oils, etc.)
-alcohol to light a fire
-paper or cardboard (only to light a fire)

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PanTherm Firebox Family
Type
Unit of
measure
PT80
PT71
PT68-
200
PT75C
G
PT68-
150
Optimum-
200/150
PT62
PT69
CG
Nominal
output
kW
19
17
15
15
10
13
Flue gas
temperature
at nominal
output
C
300
300
300
300
300
283
Efficiency at
nominal
output
%
77
77
77
77
73
77
CO emission
according to
MSZ EN 13229
%
0,28
0,28
0,28
0,28
0,29
0,28
Mass flow of
flue gas at
nominal
output
g/s
19
17
15
15
11,3
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Table 1.
Firebox overload can cause permanent damage to the entire system!

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Overall
dimensions
Unit of
measure
PT80
PT71
PT68
PT75
CG
PT68-
150
Opti
mum
-200
Opti
mum
-150
PT62
PT69C
G
Depth
mm
440
440
440
440
430
430
440
Width
mm
800
710
680
680
680
680
620
Height
mm
852
852
730
730
640
640
730
Size of filling aperture
(firebox door)
Width
mm
760
670
640
640
640
640
580
Height
mm
480
480
430
430
430
430
430
Total
weight
kg
182
168
151
151
106
106
127
Recommen
ded size of
ventilation
grids
cm2
570
510
450
450
300
300
390
Exhaust
product
nominal
connection
mm
200
200
200
150
200
150
150
Actual
exhaust
product
outlet
diameter
mm
184
184
184
134
184
134
134
Required
chimney
draught
Pa
10,0-15,0
mbar
0,10-0,15
Table 2.

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Fuel consumption at nominal output
Type
Unit
PT80
PT71
PT68
Optimum
PT62
Average fuel
consumption
kg/h
6.5 -
7.5
5.7 -
6.8
5.1 - 6
3.4-3.8
4.4 –5.2
Average length of
logs
cm
45
40
35
35
30
Maximum fillup
height
cm
30
30
25
25
25
Table 3.
Standards:
MSZ EN 13229:2001 Solid fuel-fired fireplace inlets,
including appliances under
MSZ EN 13229:2001/A1:2003 with an open fire chamber.
Requirements and
MSZ EN 13229:2001/A2:2005 testing methods.
MSZ EN 1443:2003 Flue exhaust equipment. General
requirements.
MSZ EN 13384-1 Flue exhaust equipment. Thermal
and flow dimensioning procedure.

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D
A
B
E
C
Main dimensions:
Figure 5.
Table 4.
Main dimensions (mm)
Sign
Description
Type
PT80
PT71
PT68
Optimum
PT62
A
width
800
710
680
680
620
B
depth
440
440
440
430
440
C
height
852
852
762
640
762
D
chimney connection
200
200
200
200
150
E
frame height
550
550
500
500
500

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PanAqua Water Jacket Firebox Family
Table 5.
Type
Unit of
measure
PA15
PA20
PA25
PA75C
G
PA30
PA110
PA
Mini
Nominal output
kW
15
20
25/24
30
30/40
12
Flue gas temperature
°C
230
230
230
230
250-
270
230
Efficiency
%
>80
>80
>80
>80
>80
>80
CO emission according
to MSZ EN 13229
%
0,1
0,1
0,1
0,1
0,11
0,11
Mass flow of flue gas
at nominal output
g/s
15
20
24
30
31
13
Maximum operating
pressure
bar
1,5
1,5
1,5
1,5
1,5
1,5

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Firebox overload can cause permanent damage to the entire system
Overall dimensions
Unit
PA15
PA20
PA25
PA75C
G
PA30
PA110
PA
Mini
Depth
mm
535
535
535
535
535
535
Width
mm
620
680
710/
750
800
1100
680
Height
mm
860
860
960
960
960
645
Size of filling aperture
(firebox door)
Width
mm
580
640
670
760
1060
640
Height
mm
640
640
510
510
510
640
Total weight
kg
174
189
215/
209
238
310
141
Exhaust product
nominal connection
mm
150
200
200
200
200/
250
150
Actual exhaust
product outlet
diameter
mm
137
187
187
187
187/
237
137
Required chimney
draught
Pa
10,0-
15,0
10,0-
15,0
10,0-
15,0
10,0-
15,0
10,0-
15,0
10,0-
15,0
mbar
0,10-
0,15
0,10-
0,15
0,10-
0,15
0,10-
0,15
0,10-
0,15
0,10-
0,15
Table 6.

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Standards:
MSZ EN 303-5:2000 Heating boilers. Solid fuel-fired heating
boilers with manual and automatic feed,
having a maximum nominal heat output
of 300 kW.
MSZ EN 14336:2005 Building heating systems. Installation and
putting into operation of water heating
systems.
MSZ EN 1443:2003 Flue exhaust equipment. General
requirements.
MSZ EN 1457/ A1:2003 Flue exhaust equipment. Ceramic casing
tubes. Requirements and testing.
MSZ EN 13384-1 Flue exhaust equipment. Thermal and
flow dimensioning procedure.
MSZ EN 12953-3 Design of boilers with large water
chambers.
Decree 9/2001.(IV.5.) GM On EC design review under model B1 of
Directive 97/23 EC

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Connection diagrams
Firebox overheating protection in case of excessive burning and / or
power supply interruption is ensured by a safety cooler circuit.
Figure 5.
Figure 6.
A higher-efficiency heating system can be produced by installing a
buffer tank as shown in Figure 7.
Figure 7.

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Safety heat exchanger connection diagram with the proposed safety
fittings
Thermal valve with a Honeywell TS type valve
Figure 8.