Prior To Assembling The Insert; Chimney Draught; Air Supply; Technical Information - Nordpeis N-21F Exclusive Manuel D'installation

1. Prior to assembling the insert

All our products are tested according to the latest
European requirements and also to the Norwegian
standard NS 3058 and NS 3059, which include
particle tests. However, several European countries
have local regulations for installation of fireplaces,
which change regularly. It is the responsibility
of the client that these regulations are complied
with in the country/region where the fireplace is
installed. Nordpeis AS is not responsible for incorrect
installation.
Important to check
(please note that this list is not exhaustive):
• distance from firebox to combustible/flammable
materials
• insulation materials/requirements between
fireplace surround and back wall
• size of floor plates in front of fireplace if required
• flue connection between firebox and chimney
• insulation requirements if flue passes through a
flammable wall

Chimney Draught

Compared with older models, the clean burning
inserts of today put significantly higher demands
on the chimney. Even the best insert will not work
properly if the chimney does not have the right
dimensions or is not in good working order. The
draught is mainly controlled by gas temperature,
outside temperature, air supply as well as the height
and inner diameter of the chimney. The diameter of
the chimney should never be less than that of the flue/
chimney collar. At nominal effect there should be a
negative pressure of 12 to 25 Pascal.
The draught increases when:
•
The chimney becomes warmer than the outside air
• The active length of the chimney over the hearth
increases
• Good air supply to the combustion
It can be difficult to obtain the right draught conditions
in case the chimney is too large relative to the insert,
as the chimney does not heat up well enough. In
such cases you may want to contact professional for
evaluation of possible measures. Draught that is too
strong can be controlled with a damper. If necessary,
contact a chimney sweeper.
Warning! In case of the appliance connected to
shared flue gas pipe system - the Self Closing
Door system must be operational.

Air Supply

A set for fresh air supply is available as accessory.
This will ensure that the air supply to the combustion
chamber is less affected by ventilation systems,
kitchen fans and other factors which can create a
down-draught in the room. In all new construction, we
strongly recommend that it is designed and prepared
for direct supply of outside air. In older houses, the
use of fresh air supply set is also recommended.
Insufficient air supply can cause down-draught and
thereby low combustion efficiency and the problems
that this entails: soot stains on the glass, inefficient
use of the wood and a soot deposits in the chimney.
Warrning! Extractor fans when operating
in the same room or space as the appliance
may cause problem.
Warning: Keep the air intakes, supplying
combustion and convection air free from
blockage. If the requirements for ventilation are
NOT complied with, the product can overheat.
This can cause a fire.
For your own safety, comply with the assembly instructions.
All safety distances are minimum distances. Installation
of the insert must comply with the current rules and
regulations of the country where the product is installed.
Nordpeis AS is not responsible for wrongly assembled inserts.
Subject to errors and changes.
For the latest updated version go to www.nordpeis.com.

2. Technical Information

The inserts from Nordpeis all have secondary
combustion and are clean burning. The combustion
takes place in two phases: first the wood burns and
then the gases from the fumes are lit by the hot air.
This ensures that these new inserts have minimal
emissions of soot particles and un-burnt gases (such
as CO) and are thus better for the environment. Clean
burning inserts require a small amount of wood in
order to obtain a good heat output. Use exclusively
clean and dry wood. We recommend seasoned
hardwood with a maximum moisture content of 20%.
Insert:
Material:
Weight
Surface treatment
door/doorframe:
Fuel:
Thermal Output
Efficiency %
CO @ 13% O 2
Draft system:
Combustion system:
Flue outlet:
Flue:
Flue gas temperature 293 °C
GB
N-21F Exclusive
Steel
86kg
Heat resistant varnish
Wood logs, 40 cm
6 kW
> 65 %
<1500 mg/m³
Ignition vent / air vent
control
Secondary combustion
(clean burning)
Top
Inner Ø 150 mm
(Attention! In UK outer Ø)
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