Fuel Oil Quality - Viessmann VITODENS Operating Instructions Manual

Fuel oil quality

Vitoladens appliances are approved for the combus-
tion of low sulphur fuel oil to DIN 51603-EL-1 (max.
sulphur content 50 ppm).
Fuel oil additives
Fuel oil additives are substances that can be used pro-
viding they have the following properties:
Improvement of stability during fuel storage.
■
Increase in the thermal stability of the fuel.
■
Reduction of odour development during filling.
■
Combustion improvers
Combustion improvers are additives for optimising fuel
oil combustion.
Viessmann oil burners do not require combustion
improvers, as these burners operate with clean and
efficient combustion.
Biofuels
Biofuels are made from vegetable oil, e.g. sunflower or
rapeseed oil.
If in doubt refer to your local heating contractor.
A condensate neutralising system is not required
(according to Code of Practice ATV-DVWK-A 251
[Germany]) when using this low sulphur fuel.
!
Please note
Fuel oil additives can create residues and impair
the safe operation of your heating system.
The use of fuel oil additives that leave residues
is not permissible.
!
Please note
Combustion improvers can create residues and
impair the safe operation of your heating sys-
tem.
The use of combustion improvers that leave res-
idues is not permissible.
!
Please note
Biofuels can cause damage to Viessmann oil
burners.
With boilers built in or after 2012, up to 10 %
added bio-components (FAME) are generally
allowed. Fuel oil must comply with
DIN 51603-6-EL A Bio 10.
Ordering fuel oil
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