HWAM Autopilot IHS 3420, User Manual

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nstAllAtion

General information 
Installation of your HWAM woodburning stove must always comply with local building regulations. It is 
a good idea to consult your local chimney sweep before installing, since he will be the one to sweep the 
chimney and stove.

Always follow the instructions of the manual carefully and make sure that the installation is carried out 

by a qualified professional.

HWAM packaging material should always be handled in accordance with the local rules for waste handling.

Room requirements
There must be a constant supply of fresh air to the room in which the stove is to be installed. The 
woodburning stove uses approx. 11-14 m

3

 air per hour. In comparison, a modern cooker hood sucks up 

to 1000m

3

 air per hour. A window that opens or an adjustable air vent should be sufficient, but it is also 

possible to connect the stove to a HWAM combustion air system. The air inlet/grating must be placed 
so that they do not become blocked.

Please be aware that not all glass parts are heat-resistant. For this reason, a glass wall should sometimes 
be treated as a flammable wall, in which case we ask you to contact your local chimney sweep or glass 
producer to hear at what distance the stove should be kept from glass.

Load-bearing capacity of floor
Before installing the stove, you must ensure that the load-bearing capacity of the floor can withstand 
the weight of the stove and the chimney. The weight of the chimney should be calculated according to 
its dimensions and height. 

Technical data

Model

Weight

Height

Width

Depth

HWAM 3420c/3420m

107/104 kg

100,6 cm

54,0 cm

37,1 cm

HWAM 3420c/3420m, soapstone

149/146 kg

101,4 cm

54,0 cm

37,1 cm

HWAM 3520c/3520m

118/115 kg

125,8 cm

54,0 cm

37,1 cm

HWAM 3520c/3520m, soapstone

167/164 kg

126,8 cm

54,0 cm

37,1 cm

HWAM 3530c/3530m

131/128 kg

143,8 cm

54,0 cm

37,1 cm

HWAM 3530c/3530m, soapstone

191/188 kg

144,8 cm

54,0 cm

37,1 cm

Heat storing slabs, HWAM 3520

44 kg

Heat storing slabs, HWAM 3530

77 kg

The stove is mainly made of sheet iron, with some items made of cast iron. The HWAM Autopilot IHS

TM

is an electronic product primarily consisting of plastic, a printed circuit board and wires.

Test results from nominal test EN 13240
Nominal heating effect

4.5 kW

Smoke temperature

238 ºC

Exhaust gas flow

3.66 g/s

Efficiency

83.4 %

The test result according to NS 3058
Particle emission

2.45 g/kg