When it comes to installing a wood-burning fireplace insert, one of the key aspects to ensure the efficient operation of the heating system is the organization of external air supply. Proper external air supply to the fireplace insert not only increases combustion efficiency but also maintains comfort and health in the room. In this article, we will discuss in detail why this is important, what air supply options exist, and how to ensure the correct installation of the fireplace.
Why is external air supply important?
When burning wood in a fireplace insert, oxygen is used, and if you do not ensure the supply of fresh air, the fireplace will use oxygen from the room. This leads to a decrease in air quality inside the house, especially in modern buildings with airtight windows and doors. Additionally, in rooms with mechanical exhaust ventilation, this problem becomes even more relevant, as the exhaust system removes air, leaving the fireplace without the necessary oxygen for combustion.
Benefits of external air supply to the fireplace
External air supply to the fireplace has numerous benefits:
- Improved combustion efficiency.
- Increased safety and comfort in the room.
- Prevention of negative pressure formation in the house.
- Stable fireplace operation in airtight house structures.
How does the air supply system work?
The essence of the external air supply system for a fireplace insert is that air is supplied to the combustion chamber from outside the building or from the basement rather than from the room. This is achieved through a special air duct (air intake for the fireplace), which delivers oxygen directly to the fire without using the air from the room. Such a system reduces the consumption of oxygen inside the house, maintaining air quality and increasing overall heating efficiency.
External air supply in SAVEN fireplace inserts
All SAVEN fireplace inserts have the technical capability to connect an external air supply channel to the fireplace body. This can be implemented in two ways:
- Air supply from the bottom of the fireplace insert. This option is convenient if the fireplace is installed directly on the floor or if there is space at the base of the structure for air intake.
- Air supply from the back of the fireplace insert. This is optimal for cases where the fireplace is installed against a wall, or there is the possibility of routing the air channel through the rear of the insert.
This approach greatly simplifies the installation of the fireplace and allows for flexibility in choosing the installation location, as well as simplifying the installation of the air duct for the fireplace.
Air supply system installation requirements
When installing the air supply system, it is important to follow certain rules to ensure the efficient and safe operation of the fireplace insert.
- Choosing the duct size: The air duct should have a diameter no smaller than the diameter of the connecting flange on your fireplace insert. This will ensure sufficient oxygen supply to maintain optimal combustion.
- Airtight connection: It is essential to ensure an airtight connection between the air duct and the fireplace. Non-combustible materials, such as aluminum flex pipes and a steel clamp, can be used for this purpose. This will prevent air leaks and ensure safety during operation.
- Temperature resistance: The air duct is usually exposed to minimal heating, so it is important to use materials that can withstand high temperatures and do not deform or melt.
Tips for organizing air supply
Proper external air supply to a wood-burning fireplace insert is a crucial step to ensure efficiency, safety, and comfort when using the fireplace.
- It is recommended to install the air duct during the construction phase of the house, as this will help avoid additional costs for reconstruction or drilling through walls.
- Install a protective mesh at the entrance of the external air channel to prevent debris or small animals from entering the system.
- Choose the right type of air intake — from outside the house or from the basement — depending on the building conditions and the availability of ventilation ducts.
All SAVEN fireplace inserts offer the possibility of external air supply connection, making them versatile for different types of rooms. Following the installation requirements and using quality materials will ensure the durability and reliable operation of your heating system.