Chimney Suction Power Calculator

Suction Power	CFM (Cubic Feet per Minute)	CMH (Cubic Meters per Hour)	Suitable for Kitchen Size
500	850	1440	Small to Medium
800	1360	2310	Medium to Large
1000	1700	2890	Large
1200	2040	3460	Large
1500	2550	4330	Large to Commercial
2000	3400	5770	Commercial

FAQs

How much suction power is enough for a chimney? A typical guideline is to have a suction power (measured in cubic meters per hour or CFM) of at least 10 times the volume of the kitchen area in cubic meters. So, for a kitchen with a volume of around 20 cubic meters, a suction power of 200 CFM (approximately 340 cubic meters per hour) could be considered sufficient.

How do I choose the suction power of my chimney? Consider the kitchen’s size and cooking habits. Estimate the kitchen’s volume and choose a chimney with a suction power that’s 10 times that volume in cubic meters per hour.

Is 1100 suction enough for a chimney? 1100 CFM (approximately 1870 cubic meters per hour) would likely be sufficient for a kitchen with a volume of around 110 cubic meters.

Which chimney has the highest suction power? As of my last update in September 2021, there isn’t a specific chimney brand or model with the highest suction power, but some premium brands offer chimneys with suction powers ranging from 1000 CFM to 1500 CFM or more.

Is 1200 suction good for a chimney? Yes, 1200 CFM (approximately 2040 cubic meters per hour) would generally provide good suction for a standard-sized kitchen.

What is the 2 10 rule for chimneys? The “2-10 rule” suggests that for every linear foot of chimney height, there should be 2 inches of chimney diameter. For example, a chimney that’s 20 feet tall would require a diameter of 10 inches.

Which chimney suction is best? A suction power of around 1500 CFM (approximately 2550 cubic meters per hour) is generally considered to be quite effective for most kitchen setups.

How much suction power is enough? Suction power of 10 times the kitchen’s volume in cubic meters per hour is often considered enough.

How do you calculate suction power? Suction power is usually measured in CFM (cubic feet per minute) or cubic meters per hour (CMH). It’s not a simple calculation but is based on the chimney’s motor power and design efficiency.

Can a chimney have too much draft? Yes, excessive draft can cause problems like over-firing, excessive heat loss, and poor combustion. It’s important to strike a balance for efficient operation.

What is the best chimney brand in the world? Determining the “best” chimney brand can be subjective, as it depends on factors like personal preferences, available features, and budget. Some well-regarded brands include Faber, Elica, Bosch, and Kaff.

How much suction power is good for a kitchen hood? A suction power of 600 to 900 CFM (approximately 1020 to 1530 cubic meters per hour) is generally suitable for most kitchen hoods.

What is the price of 1400 suction chimney? The price of a chimney with 1400 CFM (approximately 2380 cubic meters per hour) suction power can vary widely based on the brand, features, and region. It could range from a few hundred to several thousand dollars.

Which chimney is better, slant, or straight? Both slant and straight chimneys have their advantages. A slant chimney might be more efficient in capturing smoke from low-hanging cooking appliances, while a straight chimney can provide a simpler installation process.

What is the most advanced chimney? As of my last update in September 2021, I don’t have specific information on the most advanced chimney. However, advanced features might include smart controls, auto-clean functions, and efficient filtration systems.

Is 1200 CMH chimney good? Yes, a chimney with a suction power of 1200 CMH (approximately 706 CFM) is generally considered good for many kitchen setups.

How do you reduce draft in a chimney? To reduce draft, you can partially close the damper or adjust air intake settings. If the problem persists, consider adding a draft regulator or adjusting the chimney’s height.

What is the suction capacity of Bosch chimney? Bosch chimneys can have varying suction capacities depending on the model. Some models offer suction capacities ranging from 800 CFM to 1200 CFM.

What is the 7 times rule for chimneys? The “7 times rule” suggests that the chimney should be at least 7 times the diameter of the flue pipe to ensure proper draft and efficiency.

How many bends can you put in a chimney? Ideally, minimize bends as much as possible. One or two bends are generally acceptable, but excessive bends can impede airflow and reduce efficiency.

How far can a chimney pipe run horizontally? Horizontal runs of chimney pipes should be kept as short as possible. Generally, you should avoid exceeding a horizontal run of more than 10 to 12 feet, as longer runs can compromise draft and efficiency.

Is it better to clean the chimney from the top or bottom? Cleaning from the top is generally recommended, as it allows for better control of debris and reduces the risk of soot and ash falling into the living space.

What is the best ducting pipe for a chimney? Stainless steel ducting pipes are commonly recommended for chimney installations due to their durability and resistance to high temperatures.

What is the maximum length of a chimney pipe? The maximum length of a chimney pipe varies depending on factors like the diameter of the pipe, the type of fuel being used, and the chimney’s design. In general, longer lengths can reduce draft efficiency.

What does 2000 Pa suction mean? 2000 Pa (Pascals) is a measure of pressure. Suction power of 2000 Pa indicates the force with which the chimney can draw in air and smoke.

What suction power is good? A suction power of 800 to 1200 CFM (approximately 1360 to 2040 cubic meters per hour) is generally considered good for most household kitchens.

Is higher suction power better? Higher suction power can be better for capturing smoke and odors effectively, but it should be balanced with proper exhaust and airflow in the kitchen.

Is 1200 Pa good suction? Yes, 1200 Pa suction is considered quite good for a chimney, indicating strong airflow and smoke capture.

How do you calculate air flow in a chimney? Airflow in a chimney is affected by factors like chimney height, diameter, and temperature difference. Calculations involve complex fluid dynamics equations.

How do you calculate the maximum suction lift? The maximum suction lift is influenced by factors like atmospheric pressure, pipe diameter, and the efficiency of the pump. Calculations involve considering the limitations of these factors.

How can I improve my chimney draw? You can improve chimney draw by ensuring proper chimney height, minimizing bends, using appropriate diameter pipes, and avoiding negative air pressure inside the house.

Does a longer chimney increase draft? Yes, to some extent. A taller chimney can create a stronger natural draft due to the increased temperature difference between the inside and outside air.

Does a chimney liner improve draft? Yes, a chimney liner can help improve draft by creating a smoother interior surface that promotes better airflow.

Which company chimney is number 1? The ranking of chimney companies can vary by region and personal preferences. Brands like Faber, Elica, Bosch, and Kaff are often considered among the top options.

Which size chimney is best? The size of the chimney should match the size of the cooking area. A chimney with a suction power of 10 times the kitchen’s volume in cubic meters per hour is a good guideline.

What is the price of the best chimney? The price of the best chimney can vary widely based on factors like brand, features, and region. Premium chimneys can range from a few hundred to several thousand dollars.

How is suction measured for a chimney? Suction is usually measured in CFM (cubic feet per minute) or CMH (cubic meters per hour), indicating the volume of air the chimney can move in a given time.

How many CFM do I need for a 36-inch range hood? For a 36-inch range hood, a suction power of 400 to 600 CFM (approximately 680 to 1020 cubic meters per hour) is generally recommended.

Is 500 CFM good for a range hood? Yes, 500 CFM (approximately 850 cubic meters per hour) is considered good for many kitchen setups.

What is the normal price of a chimney? The price of a chimney can vary widely based on factors like brand, features, and region. Entry-level models might start around $200 to $300, while premium models can go well above $1000.

What is the price of Faber chimney 1150? The price of a Faber chimney with 1150 CFM (approximately 1950 cubic meters per hour) suction power can vary based on the specific model and features. As of my last update, it might be in the range of $500 to $1000 or more.

What is a sentinel chimney? As of my last update, I don’t have information about a “sentinel chimney.” It’s possible that this term refers to a specific feature or model introduced after my last update.

Why is a taller chimney better? A taller chimney generates a stronger draft due to the greater temperature difference between the inside and outside air. This improved draft can lead to better smoke and odor capture.

What is the advantage of a tall chimney? The advantage of a tall chimney is its ability to create a stronger natural draft, leading to more efficient exhaust of smoke and fumes.

What to look for when buying a chimney? Consider factors like suction power, chimney size, noise level, ease of maintenance, filtration efficiency, and brand reputation when buying a chimney.

Are longer chimneys better? Longer chimneys can be better for draft and airflow, but there’s a point of diminishing returns where excessively long chimneys may not provide significant additional benefits.

What is the safest chimney flue? Stainless steel or high-quality ceramic flue liners are often considered safe options for chimney flues, as they are resistant to high temperatures and corrosion.

What is the most common chimney size? Chimney sizes can vary, but common diameters for residential chimneys range from 6 to 10 inches.

Is 1100 suction enough for a chimney? Yes, 1100 CFM (approximately 1870 cubic meters per hour) would generally be considered sufficient for many kitchen setups.

Which chimney is best with less noise? Chimneys with sound insulation, low-noise motors, and efficient design are generally better for reducing noise. Brands like Elica, Faber, and Kaff offer models with quieter operation.

What is the best draft for a chimney? The best draft for a chimney is one that provides efficient combustion while preventing excessive heat loss or over-firing. A balance needs to be maintained.

Does a chimney cap reduce draft? A chimney cap can reduce draft to some extent by limiting the amount of air entering the chimney. However, a well-designed cap can maintain appropriate draft while preventing downdrafts.

How do you stop downdraft in a flue? To prevent downdrafts, ensure proper chimney height, consider installing a chimney cap with a draft-inducing design, and maintain good insulation and sealing around the flue.

What causes poor chimney draft? Poor chimney draft can be caused by factors such as insufficient chimney height, excessive bends, negative air pressure indoors, or competing exhaust fans.

Which chimney has the highest suction power? As of my last update in September 2021, specific chimney models with the highest suction power can vary, but some premium brands offer chimneys with suction powers exceeding 1500 CFM.

What is the highest suction power of a chimney? The highest suction power of a chimney can exceed 1500 CFM (approximately 2550 cubic meters per hour) for some premium models.

Which chimney is best for suction? Chimneys from brands like Elica, Faber, Bosch, and Kaff are known for offering models with strong suction capabilities.

What is the 10 2 rule for a chimney? The “10-2 rule” suggests that for every 10 feet of chimney height, there should be no more than 2 feet of horizontal run. This helps maintain proper draft.

What is the chimney sweeper law? The Chimney Sweeps Act of 1834 was an English law aimed at improving the working conditions and reducing the hazards faced by chimney sweeps, particularly child chimney sweeps.

How do most chimney fires start? Most chimney fires start due to the buildup of creosote—a flammable substance—inside the chimney. When ignited, creosote can cause a dangerous and damaging fire.

Can a chimney have too much draw? Yes, too much draft can lead to issues like excessive heat loss, over-firing of the appliance, and difficulty in controlling the fire.

Can you have a 90-degree bend in a chimney? While it’s best to avoid 90-degree bends due to their potential to restrict airflow, some chimney installations may include one. However, it’s generally recommended to use gentle bends or offsets.

How far up the chimney should the damper be? The damper should be positioned at a point where it effectively seals the chimney flue when not in use. It’s typically located above the firebox or at the base of the flue.

What is the 3 2 10 rule? The “3-2-10 rule” is used to determine safe clearances for combustibles around a chimney. It suggests that combustibles should be at least 3 feet away horizontally, 2 feet above, and 10 feet away vertically.

Does chimney pipe need to be double wall? Chimney pipe construction depends on factors like the type of fuel being used and the chimney’s location. Double-wall pipe is often recommended for improved safety and insulation.

What time of year is best to clean a chimney? Cleaning a chimney before the heating season, typically in late summer or early fall, is often recommended to ensure safe and efficient operation during colder months.

Do chimney sweeps have to go on roofs? Chimney sweeps often need to access the roof to inspect and clean the chimney flue thoroughly. It’s a necessary step to ensure proper maintenance.

What is the difference between a flue pipe and a chimney pipe? A flue pipe is a pipe that connects an appliance to the chimney or vent system, while a chimney pipe is a larger structure that extends above the roofline to provide proper draft and exhaust.

What size chimney pipe do I need? The size of the chimney pipe depends on the size of the appliance and the type of fuel being used. Consult local building codes and guidelines to determine the appropriate size.

How far can a chimney run horizontally? Horizontal runs of chimney pipes should be kept short. Generally, avoid exceeding a horizontal run of more than 10 to 12 feet for optimal performance.

Is 3000 Pa suction good? 3000 Pa (Pascals) suction is considered very strong and would likely be more than sufficient for most residential kitchen setups.

Is 1500 Pa suction good? 1500 Pa (Pascals) suction is considered quite strong and should provide effective smoke and odor capture in most kitchen environments.