Boiler Room - eta SH Installation Manual

Boiler room

Requirements for the surroundings
The boiler may only be installed in dry
surroundings. The permitted ambient temperatures
are between
5 and 30°C.
Ash
The ash must be kept in non-flammable containers
with covers.
Fire extinguisher
In Austria at least a powder extinguisher ABC 6 kg is
required. Better is a foam extinguisher AB 9 litre,
which causes less damage when extinguishing.
The fire extinguisher should be kept outside the
boiler room, easily visible and easily accessible.
In Germany and Switzerland, no fire extinguishers
are required for heating systems in private
residences. In spite of this, we recommend having
one in the house.
No heating appliances in the vicinity of escape
routes
No boiler may be installed in stairwells, hallways
or rooms through which escape routes lead to the
outside.
Installation or boiler room
A boiler room is required in Germany for 50 kW or
more, and in Switzerland for over 20 kW. Different
laws apply in the individual Austrian states
(boiler room in Upper Austria from 15 kW; Styria
from 18 kW; Lower Austria from 26 kW; Salzburg
from 35 kW; Burgenland, Tyrolia, Vorarlberg and
Vienna from 50 kW; for Carinthia a boiler room is
required for all central heating systems).
Boiler room
A boiler room must be built with fire-resistant
walls and ceilings F90 (EI90), in Switzerland El30
up to 70 kW and EI60 above 70 kW. An escape
door to a corridor or to the outside is required.
The door F30 (El30) must open in the direction
of escape and be self-closing with a tight seal.
Boiler room doors that open into escape routes
must be F90 (EI90). In Germany there may be
no connection to other rooms. Minimum cross-
sections for air inlets and outlets are required.
8
Required cross-sections for air inlets and outlets
Minimum areas including 20% extra for bars
Boiler
Austria
output
Inlet Outlet
20 kW
25 kW
35 kW
>240 cm² >216 cm²
50 kW
70 kW
90 kW
130 kW >347 cm² >252 cm²
200 kW >533 cm² >336 cm²
400 kW >1067 cm² >576 cm²
Installation room for smaller boilers
Smaller boilers can be installed in any room with
a sufficient air supply. The area immediately
surrounding the boiler must be non-flammable.
In Germany, for up to 35 kW rated output, either at
least one door to the outside or one window that
can be opened (rooms with connection to outside),
and a room volume of at least 4 m³ per kW of boiler
output, is required. The room volume may also
include other rooms connected via air inlets in the
doors.
Fuel storage
In Germany, up to 10,000 litres (6.5 tons) of
pellets can be stored in the room where the boiler
is installed. For larger quantities, a separate fire-
resistant F90 (EI90) storeroom is required.
In Austria, only a weekly's supply of wood may be
stored next to the boiler. For pellets, a separate
storeroom F90 (EI90) with a T30 (EI30) door is
required. As a result of amendments to building
laws, up to 10 tons of pellets may be stored in the
boiler room in some states.
In Switzerland, up to 10 m³ of pellets can be stored
in separate boiler rooms (EI60); the clearance
from the boiler must be 1 m. For larger quantities,
a separate storeroom (EI60 separated from the
building) is required; here wood may be stored
together with straw or hay.
www.eta.co.at
Germany Switzerland
Inlet/outlet Inlet
>206 cm²
>258 cm²
>180 cm²
>361 cm²
>515 cm²
>228 cm² >721 cm²
>276 cm² >927 cm²
>372 cm² >1339 cm²
>540 cm² >2060 cm²
>1020 cm² >4120 cm²