Frequently asked questions - FAQ
Do you still have questions about your chimney, stove, ventilation system, processes or other topics? We have summarized the most frequently asked questions for you in our FAQs.
Documentation and information
Looking for professional advice on your installation or project?
Not sure how a certain connection or finish is possible, or do you have another technical question and want to speak to someone?
Contact our Technical Helpdesk, we will be happy to help you with your question.
Contact - advice
Not sure how a certain connection or finish is possible, or do you have another technical question and want to speak to someone?
Contact our Technical Helpdesk, we will be happy to help you with your question.
Contact - advice
Individuals cannot purchase Schiedel products directly, but can through our distributors.
Professionals wishing to do business with us on behalf of a company can contact one of our sales consultants directly. Enter your zip code and find your contact person:
Sales consultant search
Professionals wishing to do business with us on behalf of a company can contact one of our sales consultants directly. Enter your zip code and find your contact person:
Sales consultant search
Our dealers and distributors specialize in the sale and installation of heating systems. They purchase our products and services directly from us, and make them available to individuals or other businesses.
Through the link below you can find the list of our distributors.
Distributor Search
Not found your preferred heating specialist as a distribution point?
Please let us know.
Through the link below you can find the list of our distributors.
Distributor Search
Not found your preferred heating specialist as a distribution point?
Please let us know.
Technical data per chimney system such as available diameter range, material type, pressure suitability, temperature class can always be viewed on the respective product page in the "Details & Services" tab under the heading "Technical Data".
Item-specific technical data, also known as product attributes, can be found in Product Sheets. If these are made available for a system, they can be downloaded from the relevant product page in the "For Professionals" tab under the heading "Technical Product Data".
A complete overview of available Product Sheets can be found on the downloads page in the main menu under "For Professionals > Downloads". On the downloads page you can filter by document type: "Technical Product Data" by checking the box in the downloads filter.
Downloads
Item-specific technical data, also known as product attributes, can be found in Product Sheets. If these are made available for a system, they can be downloaded from the relevant product page in the "For Professionals" tab under the heading "Technical Product Data".
A complete overview of available Product Sheets can be found on the downloads page in the main menu under "For Professionals > Downloads". On the downloads page you can filter by document type: "Technical Product Data" by checking the box in the downloads filter.
Downloads
Schiedel publishes all of our technical product data through the 2BA data pool. This means that you always have access to the most up-to-date and accurate information about our products, such as technical specifications, prices and logistical data. For example, the angle of a tee, the material of the inner pipe, or the working length of a system element. In addition, integrating this data into your own systems offers numerous advantages...
How do I integrate technical product data automatically?
Schiedel publishes all of our technical product data through the 2BA data pool. This means that you always have access to the most up-to-date and accurate information about our products, such as technical specifications, prices and logistical data. Integrating this data into your own systems offers numerous advantages:
- Always up-to-date data:
Because our data is managed centrally in the 2BA data pool, you can be confident that your systems are always working with the latest product information. - Efficient workflow:
By using 2BA, you can automatically synchronize data such as product information and price updates with your ERP or PIM software, eliminating manual entry. - Personalized selection:
Through 2BA, you can specifically retrieve data relevant to your business, such as only products you work with, with filters on attributes such as ETIM classifications. - Cost and time savings:
Automatic integration reduces errors and speeds up processes such as estimating, purchasing and inventory management.
By using 2BA, you take full advantage of the technical expertise and up-to-date information Schiedel offers. Contact us or visit 2BA To start your integration right away!
Visit 2BA website
Visit 2BA website
General information
Schiedel has a wide range of chimney systems.
First, we differentiate our systems based on the material - stainless steel or ceramic. Second, we differentiate in terms of functionality. Thus, you can buy chimneys from us for solid (logs, wood chips & co.), liquid (oil & co.) or gaseous fuels.
We also distinguish our systems by application or heating technology - room air-dependent, room air-independent, single-person, multi-person, suitable for passive houses, condensing boiler technology, low temperature technology, conventional heating technology, high pressure 5000 Pa.
On our chimney summary page you will find an overview of all our chimney systems.
Chimneys
First, we differentiate our systems based on the material - stainless steel or ceramic. Second, we differentiate in terms of functionality. Thus, you can buy chimneys from us for solid (logs, wood chips & co.), liquid (oil & co.) or gaseous fuels.
We also distinguish our systems by application or heating technology - room air-dependent, room air-independent, single-person, multi-person, suitable for passive houses, condensing boiler technology, low temperature technology, conventional heating technology, high pressure 5000 Pa.
On our chimney summary page you will find an overview of all our chimney systems.
Chimneys
Yes, we offer product solutions with CLV and half-CLV systems, as well as services for installers, owners' associations (VVEs) and insurance companies under the new gas boiler law.
The CLV+ system can be found on our RVS Chimneys page.
For additional questions about our services, we will be happy to advise you. Please contact one of our sales consultants.
Sales consultant search
The CLV+ system can be found on our RVS Chimneys page.
For additional questions about our services, we will be happy to advise you. Please contact one of our sales consultants.
Sales consultant search
The performance of a product is defined by a CE mark, for example, "T400 N1 W 3 G50," which usually consists of several components. In our example, "T400" represents the temperature class, "N1" represents the gas tightness/pressure class, "W" represents the condensation resistance class, "3" represents the corrosion resistance class and "G50" represents the fire resistance class (which specifies a distance from combustible building materials). Depending on the product, the fire resistance class can also be added to the end of the key, for example, "LA90."
All Schiedel systems have a CE mark. A DoP (Declaration of Performance) lists these markings and tells how a product performs under defined conditions. As of July 1, 2013, a DoP is mandatory for suppliers to the construction industry.
The DoP can be found per Schiedel system on the website under downloads.
Downloads
All Schiedel systems have a CE mark. A DoP (Declaration of Performance) lists these markings and tells how a product performs under defined conditions. As of July 1, 2013, a DoP is mandatory for suppliers to the construction industry.
The DoP can be found per Schiedel system on the website under downloads.
Downloads
The best known type of corrosion is oxidation of steel or iron and this type is commonly known by the term rusting. One distinguishes different corrosion resistance classifications. The corrosion class or classification indicates to what extent a steel is resistant to corrosion under certain conditions. For chimneys, one often sees:
V1: Lowest corrosion resistance. These products are suitable for less aggressive environments, for example indoors, in places with a temperate climate and without exposure to aggressive substances or high humidity. This is common in systems powered by gas or oil and with well-tuned combustion. The system should be able to withstand lower temperatures and less aggressive gases.
V2: Medium corrosion resistance. The V2 rating is the current standard and a requirement for a modern chimney system installed outdoors (double-wall insulated). V2 is typical for flue systems used in wood combustion or biomass boilers, where combustion can produce more condensate but conditions are not extremely aggressive. These products are suitable for environments that thus exhibit more corrosive conditions than V1, such as moderate industrial environments or outdoor use in climates with some humidity or contamination.
V3: High corrosion resistance. These products are designed to perform in more aggressive environments, such as in harsh industrial environments, coastal areas with salt spray, or in areas with high humidity or strong air pollution. V3 provides assurance when systems must operate under conditions where there are lots of condensate is produced or when combustion is not optimal, as often occurs with wood or biomass combustion appliances. External factors such as wind, draft and other environmental conditions always play a role in the degree of combustion, and thus the degree of combustion is not determined solely by the combustion appliance itself!
V1: Lowest corrosion resistance. These products are suitable for less aggressive environments, for example indoors, in places with a temperate climate and without exposure to aggressive substances or high humidity. This is common in systems powered by gas or oil and with well-tuned combustion. The system should be able to withstand lower temperatures and less aggressive gases.
V2: Medium corrosion resistance. The V2 rating is the current standard and a requirement for a modern chimney system installed outdoors (double-wall insulated). V2 is typical for flue systems used in wood combustion or biomass boilers, where combustion can produce more condensate but conditions are not extremely aggressive. These products are suitable for environments that thus exhibit more corrosive conditions than V1, such as moderate industrial environments or outdoor use in climates with some humidity or contamination.
V3: High corrosion resistance. These products are designed to perform in more aggressive environments, such as in harsh industrial environments, coastal areas with salt spray, or in areas with high humidity or strong air pollution. V3 provides assurance when systems must operate under conditions where there are lots of condensate is produced or when combustion is not optimal, as often occurs with wood or biomass combustion appliances. External factors such as wind, draft and other environmental conditions always play a role in the degree of combustion, and thus the degree of combustion is not determined solely by the combustion appliance itself!
Yes, there are several factors that influence the efficiency of combustion in a modern wood stove or fireplace can affect efficiency. One of the main causes of reduced efficiency is not only the operation of the appliance itself, but also external factors such as pull, wind and other environmental conditions. Here are some important factors that can reduce efficiency.
What factors influence combustion efficiency?
1. Insufficient draft (airflow)
- What it is: Draft is the airflow needed to carry flue gases to the outside. If draft is not optimal, smoke cannot be properly discharged into the chimney, leading to poor and incomplete combustion. Possible causes of insufficient draft:
- Wrong height of the chimney: This can lead to insufficient suction, which drains the flue gases poorly.
- Blockages in the chimney (e.g., soot).
- Improperly fitted flues that do not properly match the combustion capacity of the stove.
- Consequence: This can lead to incomplete combustion, resulting in increased emissions, more soot deposition and lower combustion temperatures, making combustion less efficient.
- Wind can affect the draft in the chimney. A strong wind blowing against the chimney can reverse the draft, meaning that the flue gases are not sucked upward, but may instead return downward into the room. Temperature differences: In cold environments, the air in the chimney may be denser than the air in the room, which can improve natural draft. In warm, stable weather conditions, however, the draft can be much weaker, making it more difficult to discharge flue gases.
- Consequence: Wind reversing draft or weaker natural draft can lead to smoke backfire, poor combustion and reduced efficiency.
- Moisture of the wood is one of the biggest factors affecting combustion efficiency. Wet wood burns slower and produces more smoke and condensate, making combustion less efficient and increasing the likelihood of soot and creosote deposits in the chimney.
- Consequence: If the wood is too wet, this can lead to lower combustion temperatures, incomplete combustion (resulting in more smoke) and increased amounts of condensate, which can promote flue corrosion.
- Modern wood stoves and fireplaces often have regulated air intakes to optimize combustion. If the air supply is not set properly or becomes clogged (for example, by dust, ash or soot), the air cannot reach the flames properly, preventing optimal combustion.
- Consequence: Insufficient air can lead to incomplete combustion, resulting in lower efficiency, more smoke and potentially harmful substances in the exhaust.
5. Poorly maintained chimney
6. Incorrect stove settings
- A fouled chimney or one with soot or creosote deposits can obstruct airflow, thereby reducing draft. This leads to reduced flue gas discharge and thus lower combustion efficiency.
- Consequence: This can not only reduce stove performance, but also increase the risk of fire due to creosote buildup in the chimney.
6. Incorrect stove settings
- Modern wood stoves often have sophisticated combustion systems that must precisely control airflow to ensure efficient and clean combustion. If the settings are incorrect (for example, if the combustion air or primary air supply is set too low), this can reduce combustion efficiency.
- Consequence: This often leads to smoke generation, reduced heat production and increased fuel consumption.
7. Improper stove installation
In short, factors such as pull (airflow), wind, moisture of the wood, chimney maintenancein proper adjustment and installation of the stove can all affect the combustion efficiency of a modern wood stove or fireplace. In many cases, these factors can be interrelated, so the overall efficiency of the system varies greatly depending on conditions. It is important to keep an eye on all of these elements for efficient and safe system operation.
- If a wood stove or fireplace is not installed correctly, it can cause problems with the air supply, chimney height or the connection between the stove and chimney. These can all contribute to reduced combustion efficiency.
- Consequence: Poor installation can significantly reduce performance and shorten the life of the stove.
In short, factors such as pull (airflow), wind, moisture of the wood, chimney maintenancein proper adjustment and installation of the stove can all affect the combustion efficiency of a modern wood stove or fireplace. In many cases, these factors can be interrelated, so the overall efficiency of the system varies greatly depending on conditions. It is important to keep an eye on all of these elements for efficient and safe system operation.
A room air-dependent single stove, for example a wood stove, draws its combustion air from the living room in which it is installed. Exhaust air systems (e.g. household ventilation systems), which can create negative pressure in the living space, therefore have a significant influence on the safe operation of the stove. The installation of a safety device, such as an air pressure switch, is therefore necessary. In contrast, a room air-independent single stove draws the necessary combustion air from outside the house through a separate shaft. This is routed from the outside wall or ideally via a suitable air/flue gas chimney system directly to the stove's installation location.
The designation F90 represents a fire resistance class of components or chimneys or products applied in construction.
For example, "F" stands for fire resistance class and "90" for a resistance period of 90 minutes in a standard fire.
For example, "F" stands for fire resistance class and "90" for a resistance period of 90 minutes in a standard fire.
A Meidinger disc or Meidinger cap is a plate mounted on the end of the chimney terminal. The inventor and thus namesake was the physicist Heinrich Meidinger (* Jan. 29, 1831 in Frankfurt am Main - † Oct. 11, 1905 in Karlsruhe).
Calculation, Installation & Planning
For our professional customers, we offer online tools, technical support and engineering services to match the chimney system and appliance. Check out the available online tools or contact one of our staff and we will be happy to assist you.
For private customers, unfortunately, it is not possible to perform chimney calculations yourself. We advise you to contact one of our dealers / distribution partners.
Contact - advice
For private customers, unfortunately, it is not possible to perform chimney calculations yourself. We advise you to contact one of our dealers / distribution partners.
Contact - advice
The working length of an article can be found in the product data sheets, available per system as download filter category 'technical product data'.
Alternatively you can consult the data from 2BA in Unifeed. If you cannot find what you are looking for or the information is not available online you can always contact our Technical Helpdesk.
Contact - advice
Alternatively you can consult the data from 2BA in Unifeed. If you cannot find what you are looking for or the information is not available online you can always contact our Technical Helpdesk.
Contact - advice
The storm collars are now classified as accessories and are system-independent. This means the diameters of the storm collars are indicated by the clamp diameter instead of the system diameter. To choose the right storm collar, you can use the diameter of the outer pipe of your chimney. The texts and discounts have been adjusted to match the new Schiedel accessories system.
How do I choose the right storm collar for my chimney?
The clamp diameter is the diameter at which the storm collar clamps onto the outer pipe of the chimney.
You now need fewer items to keep in stock.
For example: article code 162639 replaces article codes 161443, 163854, 165070, and 160468.
For example: article code 162639 replaces article codes 161443, 163854, 165070, and 160468.
All changes in one overview?
Download the full conversion list here (link).
Download the full conversion list here (link).
More about Schiedel
The company - Schiedel
Our vision, mission and beliefs. Schiedel stands for the values: Empower, Evolve, Connect and Inspire.
Schiedel Products
Chimneys, stoves and ventilation systems: Schiedel products stand for durable quality, timeless design and maximum energy efficiency. Chimneys, stoves and ventilation solutions developed for your life.
