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Connection to a brick chimney
Brick a thimble into the chimney and seat the
flue gas pipe in this.
The thimble and flue gas pipe must not penetra-
te the chimney opening itself, but must be flush
with the inside of the chimney duct. Joins bet-
ween brickwork, the thimble and flue gas pipe
must be sealed with fireproof material and / or
beading. Heta A/S stresses that it is of utmost
importance that this is done correctly with very
tight joints. As mentioned earlier, we recommend
that setup and installation be left to a profes-
sional Heta dealer.
Connection to a steel chimney
When fitting a connection from a top outlet stove
directly to a steel chimney, we recommend fit-
ting the chimney tube inside the flue gas spigot
so that any soot and condensation drops into
the stove itself rather than collecting on the ex-
terior surface of the stove.
For connections to chimneys that are run through
ceilings, all national and local regulations regar-
ding distance to flammable material must be fol-
lowed. It is important that the chimney is fitted
with roof support so that the top panel of the
stove is not required to bear the entire weight
of the chimney (excessive weight may damage
the stove).
2.4 Combustion air
The insert can be room air independent accor-
ding to EN 13229.
Wall hole dimensions
vista
Min. 470
vista s
Min. 380
Min. 509
Min.709
Min.509
Min. 709
All the combustion air in the inset stove comes
from the room in which it is fitted.
However, by connecting a sealed air inlet to the
insert stove's air intake connector, the stove
can be supplied with external combustion air.
In this respect, the following requirements must
be met:
• Only approved materials may be used from
the ventilation unit to the air inlet vent.
• The air inlet vent must be fitted correctly and
insulated to prevent formation of condensate.
The cross section of the vent and grille must
be at least 78 cm².
• If the vent leads out into the open air, please
note that the grille must be fitted with suitable
wind protection. There must be no risk that
the grille can get clogged by leaves, etc.
ventilation
Adequate ventilation must be provided in ac-
cordance with building regulations (Doc J Oct
2010) especially when installing in newer build
properties when the stove is not going to be in-
stalled to an outside air supply.
Vista has a nominal output of 7 kW Requires ad-
ditional ventilation because it exceeds the 5 kW.
Houses built after 2008 where the air leakage
rate is less than than 5 m
tilator equivalent to 550 mm
be required (4.5 kW x 550 mm = 2475 mm
less the stove is connected to an outside fresh
air supply.
493
Min. 470
698
493
Min. 380
698
/ hour / m
then a ven-
3
2
per kW output will
2
) un-
2
vista frameless
vista s frameless
17
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