For central heating and district heating two kinds of noise appear:

The noise of the burner is a form of air noise. To reduce this noise you must apply absorption material (Soundstone) in the central heating-space. If the central heating (CH) boiler is in a big space, we advise you to build a housing around the central heating made from a sufficiently heavy material (for example, wood) . Then, you can cover it with Soundstone.

The noise from the pump is conducted to the wall radiators which radiate it as an audible noise. Vibrations are transferred via the central heating piping which can transfer vibrations onto the walls and radiators. Vibration energy is transported through the central heating (contact noise) and is radiated everywhere as audible noise (air noise) and via the piping transferred to the radiators which radiate it as audible sound.

Solutions
- If possible fix the boiler to a thick wall and not a light partition wall!
- Glue a plate of Agglomer "Floating floor" the size of the boiler with Saba Select AAC. For good application, follow the user’s manual instructions (degreasing etc). Glue a multiplex plate of 18 mm on the Agglomer. After drying, screw the boiler fast on to the wooden plate.
- Decouple the central heating pipes from the walls as much as possible.
- Connect the central heating pipes to the boiler with a flexible pipe

When you follow all these suggestions your boiler is fixed "floating" so it can not transfer any vibration to the surrounding.