ULTD_WHE_2S3S_01
14
There are 4 connections on the top of the fireplace for conducting the heated convection air back
into the room. At least 4 connections must be used. Always ensure that the same number of outflow
openings are connected on either side of the flue pipe. If not, the convection air flow may not be
balanced. If the flexible connectors vary too much in length, this may also lead to imbalance in the
convection flow.
All openings and grates at the top or bottom of the fireplace surround must be in the same room
(have the same air pressure) so that there is a natural flow of air in the room. When assembling the
appliance, make sure that the grates and openings are always open.
Passageways for convection air in fireplace surround
Appliance
1050-50 WHE 2SL
1050-50 WHE 2SR
1050-50 WHE 3S
Minimum intake of air
to convection mantle
700 cm²
700 cm²
700 cm²
Minimum outflow air
in fireplace
convection mantle
700 cm²
700 cm²
700 cm²
If the requirements for the convection connector/openings are not adhered to, this can lead to
overheating and damage to the fireplace. If there is a grate, the net throughput (throughput
coefficient) must be taken into account.
Keep a minimum distance of 30 cm between the outflow grates/openings and flammable materials
and the ceiling.
If the dimensions of the air flow openings are too narrow, this can lead to the outflowing convection
air temperatures being too high and this may in turn be accompanied by unpleasant odours and
discolouration.
The connector flanges for the convection air flexible
connectors are mounted to the convection mantle
using self-tapping screws.
