The right indoor climate when heating with wood-burning stoves and fireplaces

How to avoid excessively dry air and high levels of CO2 and particulate matter when heating with wood

Who can resist? When the temperatures drop, a crackling fire creates a cozy atmosphere and makes cold winter days much more bearable. But wood-burning stoves and fireplaces have a far greater influence on the indoor climate than you might think. They can quickly dry out the air and also increase levels of CO2 and particulate matter. This not only has an unpleasant effect on the indoor climate, it can also affect your health. We'll show you how to maintain a comfortable climate throughout your home while you enjoy a pleasantly crackling fireplace. 

The effect that heating with wood has on the indoor climate

If you use a wood-burning stove or fireplace during the cold winter days, you should pay even more attention than usual to maintaining the ideal temperature, as well as ventilating regularly. This is because burning wood usually draws oxygen from the indoor air to prevent the fire from going out. That means that the level of CO2 in the air increases and must be replaced with fresh air.
In combination with the heat, the indoor air can fall below the recommended 40-60% humidity and become too dry - this is so-called "dry heated air". The low humidity can be experienced as unpleasant and irritate the mucous membranes. That is one of the reasons why we get sick more often during the winter.
Besides excessively dry air and increased CO2 levels, there is also a third factor: particulate matter. This is produced when wood is burned and has a significant impact on your air quality and health. According to the German Federal Environment Agency (UBA), it has now been proven that particulate matter has a negative impact on health and can cause asthma, allergies, cardiovascular problems and even lung cancer. 

https://www.umweltbundesamt.de/service/uba-fragen/warum-ist-feinstaub-schaedlich-fuer-den-menschen

Heat the fireplace correctly to reduce hazardous particulate matter

But you can actually do something to reduce particulate matter emissions somewhat. Try to avoid improper use such as overfilling the stove or fireplace, adding new logs too late, improperly igniting or burning newspaper. The way you store the firewood is also important and makes a difference. Use dry wood that is properly stored, for example not directly leaning against the wall, to mention just one point. Then there are fewer emissions when they burn. It also helps you to reduce particulate matter. The optimal solution for filtering fine dust and other harmful substances from the air, is an Air Purifier or Airwasher.

The convenient way to create good air quality

Our Airwasher will help you to always have good, clean indoor air and still be able to enjoy the warmth of the fire. It provides both optimal humidity and clean air. Does the air contain an excessive amount of particles such as dust, fine dust and/or ash particles? Or is the air perhaps too dry? No problem, because the Airwasher responds in real time to low humidity and high pollutant levels. If this is the case, it independently adjusts its performance accordingly and automatically humidifies or purifies your air.

Do you want either just clean air or optimal humidity? Then you can rely on our air humidifiers or air purifiers. The Air Humidifier helps you achieve and maintain optimal humidity all year round, whereas the Air Purifier ensures clean and pure indoor air (eliminates 99.995% of airborne pollutants). If necessary, the Air Purifier can also be equipped with an active carbon filter. This filters out unpleasant odors that can result from heating with wood or coal briquets, down to 0.0002 microns.

Tip - This is how to constantly keep track of all important air factors:

In order to be able to continuously monitor the various factors such as temperature, humidity, CO2 and particle level of the indoor air, we recommend AirSense, our professional air quality meter. Is the CO2 level of the indoor air too high and needs ventilation due to using the fireplace? Then you will receive a recommendation about what to do via the app. The air quality meter AirSense measures, monitors and analyzes airborne substances, the indoor climate and environmental influences in real time, and alerts you to changes in air quality. 

Venta Airwashers and Humidifiers

Filter

Filter
Tip
AH902 Professional Air Washer + AisSense Pro
  • Airwasher 
  • Room size up to 70 m² 
  • Highly efficient humidification with VentWave™ 3D technology 
  • Low-maintenance operation thanks to patented hygiene disk – without chemical additives 
  • Certified Nelior filter technology with HEPA 14 clean room filter acc. to DIN EN 1822 
  • Coarse dust filters for particles down to 10 μm increase the service life of the HEPA 14 clean room filter 
  • Up to 99.9 % sterilisation thanks to UVC technology 
  • Professional sensors for real-time air quality & humidity display 
  • Convenient control with the Venta Home App 

CHF 1,249.00*
Tip
AH550 Original Connect + Airsense Eco
  • Air Humidifier 
  • For room sizes up 65 m² 
  • For healthy air humidified to an optimal 40-60% 
  • Unique humidification technology with VentWave™ disk stack 
  • App access for remote control – compatible with AirConnect 
  • Device uses tap water 
  • Water acts as a filter: hygienic, easy to clean, simple 
  • High-quality sensors for real-time humidity display and control 
  • Reduces pollen and house dust particles in the air 
  • Ingeniously simple operation with fully automatic control and intuitive touch display 
  • 10 liters water capacity 
  • Quiet operation 
  • Extremely low power consumption 
  • Made in Germany 

CHF 449.00*
Tip
AH555 Original Connect + Airsense Eco
  • Air Humidifier 
  • For room sizes up 65 m² 
  • For healthy air humidified to an optimal 40-60% 
  • Unique humidification technology with VentWave™ disk stack 
  • App access for remote control – compatible with AirConnect 
  • Device uses tap water 
  • Water acts as a filter: hygienic, easy to clean, simple 
  • High-quality sensors for real-time humidity display and control 
  • Reduces pollen and house dust particles in the air 
  • Ingeniously simple operation with fully automatic control and intuitive touch display 
  • 10 liters water capacity 
  • Quiet operation 
  • Extremely low power consumption 
  • Made in Germany 

CHF 449.00*
LW15 Original Air Humidifier
  • For rooms up to 25 m² 
  • Healthy air humidified to an optimal 40 to 60% 
  • Hygienic cold evaporation without humidifier mats or filters 
  • Uses tap water 
  • Naturally reduces harmful substances in the air at a humidity level of 40–60% 

CHF 169.00*
Details
LW25 Original Air Humidifier
  • For rooms up to 40 m² 
  • Healthy air humidified to an optimal 40 to 60% 
  • Hygienic cold evaporation without humidifier mats or filters 
  • Uses tap water 
  • Naturally reduces harmful substances in the air at a humidity level of 40–60% 

CHF 269.00*
Details
LW45 Original Air Humidifier
  • For rooms up to 55 m² 
  • Healthy air humidified to an optimal 40 to 60% 
  • Hygienic cold evaporation without humidifier mats or filters 
  • Uses tap water 
  • Naturally reduces harmful substances in the air at a humidity of 40–60 % 

CHF 389.00*
Details
LW25 Comfort Plus Air Humidifier
  • Premium Humidifier 
  • For rooms up to 45 m² 
  • Healthy air humidified to an optimal 40 to 60% 
  • Hygienic cold evaporation with innovative VentWave™ technology for increased evaporation performance. The design uses less material for a better eco-balance 
  • Uses tap water 
  • Harmful substances in the air naturally reduced at an indoor humidity of 40 to 60% 
  • Digital hygrostat monitors and controls relative humidity 
  • Interactive touch display 

CHF 309.00*
Details
LW45 Comfort Plus Air Humidifier
  • Premium Humidifier 
  • For rooms up to 60 m² 
  • Healthy air humidified to an optimal 40 to 60% 
  • Hygienic cold evaporation with innovative VentWave™ technology for increased evaporation performance. The design uses less material for a better eco-balance 
  • Uses tap water 
  • Harmful substances in the air naturally reduced at an indoor humidity of 40 to 60% 
  • Digital hygrostat monitors and controls relative humidity 
  • Interactive touch display

CHF 419.00*
Details
AH510 Original Connect Humidifier
  • For room sizes up to 35 m² 
  • For healthy air humidified to an optimal 40-60% 
  • Unique humidification technology 
  • App access for remote control – compatible with AirConnect 
  • Device uses tap water 
  • Water acts as a filter: hygienic, easy to clean, simple 
  • High-quality sensors for real-time humidity display and control 
  • Reduces pollen and house dust particles in the air 
  • Ingeniously simple operation with fully automatic control and intuitive touch display 
  • 5 liters water capacity 
  • Quiet operation 
  • Extremely low power consumption 
  • Made in Germany 

CHF 269.00*
Details
AH530 Original Connect
  • Air Humidifier 
  • For spaces up to 45 m² 
  • For healthy air humidified to an optimal 40-60% 
  • Unique humidification technology with VentWave™ disk stack 
  • App access for remote control – compatible with AirConnect 
  • Device uses tap water 
  • Water acts as a filter: hygienic, easy to clean, simple 
  • High-quality sensors for real-time humidity display and control 
  • Reduces pollen and house dust particles in the air 
  • Ingeniously simple operation with fully automatic control and intuitive touch display 
  • 7 liters water capacity 
  • Quiet operation 
  • Extremely low power consumption 
  • Made in Germany 

CHF 349.00*
Details
AH555 Original Connect Air Humidifier
  • For room sizes up 65 m² 
  • For healthy air humidified to an optimal 40-60% 
  • Unique humidification technology with VentWave™ disk stack 
  • App access for remote control – compatible with AirConnect 
  • Device uses tap water 
  • Water acts as a filter: hygienic, easy to clean, simple 
  • High-quality sensors for real-time humidity display and control 
  • Reduces pollen and house dust particles in the air 
  • Ingeniously simple operation with fully automatic control and intuitive touch display 
  • 10 liters water capacity 
  • Quiet operation 
  • Extremely low power consumption 
  • Made in Germany 

CHF 449.00*
Details
AW902 Professional Air Humidifier
  • Room size up to 120 m² 
  • Highly efficient humidification using VentWave™ 3D technology 
  • Low-maintenance operation thanks to patented hygiene disk – without chemical additives 
  • Up to 99.9 % sterilisation thanks to UVC technology 
  • Convenient control with the Venta Home App 
  • Reduces pollen and house dust – important for people suffering from allergies 

CHF 1,049.00*
Details
AP902 Professional Air Purifier
  • Room size up to 75 m² 
  • Certified Nelior filter technology with HEPA 14 clean room filters acc. to DIN EN 1822 
  • Coarse dust filters for particles up to 10 μm increase the service life of HEPA 14 clean room filters 
  • Professional PM2.5 particle sensor for real-time air quality display 
  • Convenient control with the Venta Home App 
  • Air quality display according to worldwide Air Quality Index

CHF 1,049.00*
Details
Tip
AH902 Professional Air Washer
  • Airwasher with hybrid functionality as an air purifier and humidifier 
  • Room size up to 70 m² 
  • Highly efficient humidification with VentWave™ 3D technology 
  • Low-maintenance operation thanks to patented hygiene disk – without chemical additives 
  • Certified Nelior filter technology with HEPA 14 clean room filter acc. to DIN EN 1822 
  • Coarse dust filters for particles down to 10 μm increase the service life of the HEPA 14 clean room filter 
  • Up to 99.9 % sterilisation thanks to UVC technology 
  • Professional sensors for real-time air quality & humidity display 
  • Convenient control with the Venta Home App 

CHF 1,249.00*
Details