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ESP Particle Filter
Particle Filter System for Stoves and Fireplaces
Particle Filter System for Stoves and Fireplaces

The ESP Particle Filter filters out hazardous and ultrafine particles from the flue gas of your wood-burning stove or fireplace.

The particle filter reduces the number of particles by 90-95% (fine and ultrafine particles) while reducing the total particle mass by 70-75%. Measurements were carried out according to the Norwegian standard NS3058 which corresponds to outside air conditions.

The electrostatic particle filter is installed on top of the chimney, where it is coldest (no need for a chimeny cap), and uses a high-voltage electrode to charge the particles in the flue gas, causing them to collect inside the filter.

The ESP Particle Filter comes with a self-cleaning feature and catalytic-like technology.

  • Highly efficient electrostatic precipitator (ESP)
  • 90-95% reduction in number of particles*
  • 70-75% reduction of total particle mass*
  • Automatic cleaning function (self-cleaning)
  • Integrated chimney fan

* at 95°F (35°C) condensed flue gas (NS3058-2), simulating real-life conditions.

Filter ON and OFFFlue gas particles from a wood-fire have a size less than 0.1μm which is 1/1000th the thickness of a human hair. Since the human throat is only capable of capturing particles larger than 2.5 μm, the smaller particles continue to lungs and blood vessels and can cause asthma, breathing problems and/or inflammations and can be damaging to your health.

The particle filter captures and eliminates both large and ultrafine particles, thus reducing or even eliminating the health risk.

Mechanical Draft FanThe ESP particle filter comes with an integrated mechanical draft system in its top portion. A mechanical draft system consists of a ventilator that ensures a constant draft in the chimney, making it easier to light the fireplace as well as helping to prevent the backflow of smoke into the room. Without this reliable mechanical draft, you are at the mercy of the chimney’s natural draft which can vary depending on outside temperature, wind and air pressure.

Clean outThe particles are collected inside the filter by electrostatically charging the particles and trapping them inside the filter, where the self-cleaning function of the ESP causes some of the particles to combust. The remaining particles are released into the chimney to be burnt off, thus eliminating the need for manual cleaning of the filter. A cleaning hatch can be supplied for installation between the chimney and the filter, if local codes or regulation requires chimney sweep access from the top of the chimney.