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8 | Technical description
Investment costs
Scope of
Unit
1)
investment
Total
investment
Euro
costs
Table 2 Investment costs for conventional boilers and
boilers with condensing heat exchangers (values
rounded off)
1) Incl. accessories
The investment costs are based on the costs of a boiler
system. This includes the costs of the boiler, boiler
circuit control unit, pressure-jet burner and flue system,
as well as the costs of the safety equipment and return
flow temperature safeguard. The costs of the UNIMAT
UT-L boiler with condensing heat exchanger also include
the neutralisation of the condensate. Costs for
installation have not been taken into account.
Reflux of capital
Type of cost
Unit
Investment costs
Euro
Costs linked to
Euro/a
1)
capital
Fuel costs
Euro/a
Total costs
Euro/a
Table 3 Total costs for conventional boilers and boilers
with condensing heat exchangers (values rounded
off)
1) Annuity 9,44 %, interest 5 %, maintenance 1 %
In this example, the investment costs have been repaid
due to the lower fuel costs after about one year. It is
generally true that condensing technology pays for itself
faster the greater the output and the higher the fuel
costs. No subsidies have been taken into account in the
calculations. With the UNIMAT UT-L boilers, it is possible
to integrate further condensing heat exchangers. This
results in higher efficiency and therefore lower fuel
costs.
6 720 807 794 (2013/04)
UNIMAT UT-L
UNIMAT UT-
boiler with a
L boiler with
rated output
condensing
of
heat
2000 kW
exchanger
with a rated
output of
2000 kW
50000
63000
UNIMAT UT-
L boiler with
condensing
UNIMAT
heat
UT-L boiler
exchanger
with a rated
with a rated
output of
output of
2000 kW
2000 kW
50000
63000
5220
6577
179136
166178
184356
172755
3
Technical description
3.1
UNIMAT UT-L boiler
3.1.1
Equipment overview
The UNIMAT UT-L boilers are oil/gas special boilers for
positive pressure combustion to EN 303. These boilers
are designed to produce low pressure hot water with no
more than 110 °C (shutdown temperature of the high
limit safety cut-out) for heating systems that correspond
to the demands of DIN-EN 12828. The permissible
overall pressure must not exceed the permissible
pressure stage of the boiler. The modular design of the
boiler and additional equipment enables universal
application.
• Round boiler casing made of textured aluminium
sheeting
• Visible parts of the boiler primed in anthracite grey
and red
• Thermal insulation (100 mm) and extremely well
insulated burner door
• Boiler pressure body with connections for flow,
return, safety valve and drain
• As an option with inspection port on the water side
• Bottom rear inspection aperture on flue gas collector
• Boiler base frame for even load distribution and easy
transportation
• Large burner door closing on the left hand side
(can be changed to the right hand side if required)
• Air-cooled combustion chamber sight glass
The following options are possible:
• Control unit holder
• Also available as a unit version (with boiler and
burner)
• Heat exchanger as integrated or stand-alone version
with and without the use of condensing technology
UNIMAT
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