Nordpeis X-20 F, User Manual, Page: 9 / 44

Index
1. Prior to assembling the insert 9
Chimney Draft 9
Air Supply 9
2. Technical Information 10
3. Safety distances 10
4. Assembly 10
Radiation shields 10
Assembling and adjusting the legs 10
Rear flue gas connection 11
Flue collar and connection 11
Assembling upper covers 11
Removing the self closing mechanism 11
Removing the door 11
Operational control 11
5. Lighting the fire for the first time 11
6. Maintenance 12
Cleaning and inspection 12
Ashes 12
Thermotte™ 12
Door and glass 12
7. Warranty 13
8. Advice on lighting a fire 13
Some advice in case of combustion problems 14
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 draft
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. For draft
requirements at nominal heat output, see technical
table
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.
Air supply
A set for fresh air supply is available as an 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 constructions, we strongly
recommend the product is designed and prepared
for direct supply of outside air. In older houses also,
the use of fresh air supply set is also recommended.
Insufficient air supply can cause poor draught and
thereby low combustion efficiency and the problems this
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