Quiet pellet stove: why Ambelys runs at 38 dB or less

Where pellet stove noise comes from

A pellet stove is a small machine as well as a fire. Several components work while it heats, and each can be heard in a quiet room. Knowing where the sounds come from helps you compare models and ask the right questions before you buy.

• The fan, which pushes warm air into the room and is usually the main source of noise
• The feed screw (auger), which carries pellets from the hopper to the burner and can grind or squeak
• Pellets dropping into the burner pot, which makes a regular clicking or rattling sound
• Ignition, when the igniter and the combustion fan start up

What Ambelys does to stay silent

Schulhof Energies worked on each of these sources at the design stage. The result is a pellet stove measured at 38 dB or less.

The fan turns at only 300 rpm. A slow fan moves air with far less whistling and hum than a fast one. The feed screw runs on ball bearings, so it turns smoothly without the grinding sound some augers make. And the pellet path is designed so that you do not hear pellets falling into the burner, which removes the intermittent clicking that many owners find the most irritating noise of all.

• Noise level: 38 dB or less
• Fan speed: 300 rpm
• Feed screw on ball bearings
• No noise of pellets falling

What 38 dB sounds like

Decibels are easier to understand with everyday comparisons. As a rough guide, a quiet library or a calm bedroom at night is often around 35 to 40 dB, while normal conversation is noticeably louder. A stove at 38 dB or less therefore sits in the range of a quiet room: present if you listen for it, but easy to forget once you are reading, talking or watching television.

These comparisons are only indicative. The sound you perceive also depends on the room, its furnishings and the hard surfaces around the stove.

A silent pellet stove for living rooms and open-plan spaces

Noise matters most where you spend your evenings. In an open-plan kitchen and living area, the stove is often the centre of the room, close to the sofa and the dining table. A quiet pellet stove lets you enjoy the warmth and the view of the flame without the background noise competing with conversation.

Ambelys has two power levels, 6 kW and 8.8 kW. You can switch power from the mobile app, the remote control or the colour touchscreen without getting up.

Tips for a quieter installation

Even a quiet stove benefits from a well-thought-out installation. A few simple points help keep pellet stove noise to a minimum.

• Place the stove on a stable, level floor so that it does not transmit vibrations
• Think about the room's acoustics: large bare walls and tiled floors reflect sound more than rugs and curtains
• Have the stove serviced once a year by a professional so that the fan and moving parts stay in good condition
• Use good-quality wood pellets compliant with ISO 17225-2

Quiet, clean and sealed

Low noise is one part of the Ambelys design. The stove also uses patented double combustion for low emissions and is a room-sealed stove that draws no air from the room. To compare shapes, finishes and prices, see the Ambelys pellet stove page.