HWAM 3740, User Manual

Page 14 of 20 pages

Fitting the loose parts

Before the stove is installed, you must ensure that all loose parts are fitted correctly. Check that all insula-
tion plates of the combustion chamber have been properly placed, i.e. that the bottom plate is horizontal 
and that the side plates are vertical and reach all the way up to the steel sides of the combustion chamber 
and down to the bottom plate.

Vertical cross-section of the stoves (Drawing B):
•  The smoke shelf (5). To be placed on top of the steel rail and on the holders in the sides.
•  Two-piece smoke defector plate (6). Each half is hung on the hooks located beneath the top plate. The two 

halves join in the holders (7) behind the air pipe. Once the stove has been installed, twist the protection 
off the two hooks by using pliers or a screwdriver.

•  Removable rear plate (2a), covering HWAM

®

 Autopilot™. This must always be mounted if the stove 

is placed next to a combustible wall.

•  Removable external heat shield (2b). This must always be mounted if the stove is placed next to a 

combustible wall.

•  Removable internal heat shield (2c). This must always be mounted if the stove is placed next to a 

combustible wall.

•  Loose heat shield (8) under the ash pan. This can be used as a lid when the ash pan is removed for 

emptying. This must always be mounted when the stove is burning

Connection of the HWAM

®

 SmartControl

TM

Before using the stove it must be connected to power. See the instructions in the separate manuals for 
the app IHS SmartControl

TM

 or in the Quickguide in order to connect to stove with the app and the 

wireless room temperature sensor.

Chimney

The chimney is the “engine” of the stove and it is crucial for the functioning of the woodburning stove. 
The chimney draft provides a partial vacuum in the stove. This vacuum removes the smoke from the 
stove, sucks air through the dampers in the Air box for the so-called glass pane rinse which keeps the 
glass free of soot, and for the combustion.

The chimney draft is created by the differences in temperature inside and outside the chimney. The higher 
the temperature within the chimney, the greater the draft (a brick chimney takes longer to warm up than 
a steel chimney). On days where the weather and wind conditions create insufficient draught inside the 
chimney, it is even more important to warm up the chimney as quickly as possible. The trick is to quickly 
get some flames going. Split the wood into extra fine pieces, use an extra firelighter, etc.

If the stove has not been used for a longer period, it is important to check that the chimney pipe is not 
blocked. It is possible to connect several devices to the same chimney. However, it is important to first 
check the applicable rules.

Chimney sweeping

To prevent the risk of chimney fires, the chimney must be cleaned every year. The flue duct and the smoke 
chamber above the baffle plate must be cleaned together with the chimney.  If the chimney is too tall to 
be cleaned from above, it must be equipped with a soot door.

In case of a chimney fire and overheating, the HWAM

®

 SmartControl

TM 

will enter a security mode and 

automatically adjust all dampers in the Air box, effectively quenching the fire. Do not open the door for 
the burning chamber, since that might cause the fire to rekindle. Contact the fire brigade.  After a fire, the 
stove should be checked by a chimney sweep before use.