But makeup air is not required for your range hood unless…. More frequent cooks will require more CFM to vent the dirty air and smoke outside their home and keep the space free of strong odors. 50,000 divided by 100 equals 500 CFM or more. So, if your range produces a total of 60,000 BTUs, your range hood must be at least 600 CFM. This means you will be removing more air from your kitchen than is necessary, potentially causing you to lose the heat you want in your home. Do you regularly steam foods? For older, less powerful range hoods, ducting sizes tend to be four to six inches in diameter. Between m3/h and m3/sec measurements conversion chart page. For more information on choosing the right CFM for your vent hood, check out our full article ‘Is 400 CFM enough for my range hood?‘, Your building codes require makeup airYou have a 1200+ CFM kitchen range hood in a small kitchenYou use your high CFM range hood often. However, higher CFM ratings require larger diameters of eight to 10 inches. Best 1200 CFM Range Hoods and Buyer’s Guide. Proline’s stainless steel baffle filters capture grease efficiently and they are dishwasher-safe. Air Changes Per Hour Calculator from CADR & Room Size, Air Purifier Electricity Cost Calculator: Monthly kWh & Bill. Most Proline range hoods come with at least four fan speed options, so you can adjust the power of the kitchen exhaust fan to meet the requirements of any type of food preparation. If you scale up the size of the hood it will make less sound. The further your hood extends past the edges of your cooktop, the better – particularly if you have an island range. If you used the above calculations to calculate your CFM (total BTUs of your range / 100) and came up 400 or less, then that amount of power will work great for you. There isn’t necessarily a calculation for CFM based on cooking habits, but you should consider choosing a higher power blower if you often engage in more intense cooking routines. To determine how much CFM you need for your range hood, consider the following: There is no ideal range hood CFM, but instead, an appropriate CFM based on your cooking style and habits in the kitchen. Range hoods from big box stores do not have enough power to vent all the smoke from your cooking space and are not made with high-quality materials. Based on your most intensive use of your kitchen range, you can decide how much more CFM you need for your range hood to handle the added fumes. Also, you can opt for an inline or remote blower instead of an internal one. The most popular range hoods from big box stores are available at 250 CFM, 300 CFM, and 400 CFM. Are you a fan of Asian cooking? Convert flow rate of cubic meter per hour (m3/h) and cubic meters per second (m3/sec) units in reverse from cubic meters per second into cubic meters per hour. If your hood isn’t sized properly, a higher CFM will not necessarily help you eliminate all the fumes. ReviewsofAirPurifiers.com. But, if you purchase a 400 CFM range hood and you realize you want 900 CFM, there’s unfortunately not much you can do about that.For more information on choosing the right CFM for your vent hood, check out our full article ‘Is 400 CFM enough for my range hood?‘. Do you cook a lot of fish and other foods with a strong odor? Home » Unit » Cubic meter/hour ↔ Cubic foot/hour Conversion. To ensure that you have enough power, multiply that number by at least 1.5 to find the appropriate CFM. CFM, on the other hand, does not take variables like temperature and pressure into account. How often do you cook?2. What is the minimum duct size for a range hood? Reviewsofairpurifiers.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. Or, you can also simply divide the volume of your kitchen by 4 as every 4 minutes, your air needs to be exchanged. In most cases, this won’t be powerful enough to clean your kitchen air efficiently. Another way to think about the relationship between BTUs and CFM is to divide the total BTUs by 100 to get the CFM you need for your range hood. Smoke and steam will stay in your kitchen, as well as cooking odors, which is not ideal. The minimum recommended duct size is 6” for 0-400 CFM range hoods. For the average homeowner, this is a great option. First unit: cubic meter per hour (m3/h) is used for measuring flow rate. The smaller the duct size, the less CFM you need and the larger the duct size, the more CFM you need. The term ‘Clean’ means the filtered air and not the purification level. How many CFM do I need for a 36” gas range? For this reason, it is a slightly less accurate measurement of fan power. A good rule of thumb for estimating duct diameter and CFM requirements is: Keep in mind that you can never have ductwork that is too wide. How wide is your range hood?6. To get the number of cubic feet moved per hour, multiply your kitchen’s cubic feet by the air exchanges per hour. With a larger capacity, you will be able to run your hood at lower and quieter speeds as well. Do you cook fajitas, pizza, or other similar foods that produce a lot of smoke? With the above mentioned two-units calculating service it provides, this flow rate converter proved to be useful also as a teaching tool: 1. in practicing cubic meters per hour and cubic meters per second ( m3/h vs. m3/sec ) measures exchange. Have a small kitchen where the air pulled into your hood is greater than the air coming into your kitchen, Have a hood with small diameter ductwork that won’t support a higher CFM, Run your AC and heater often – the cool and warm air will leave your home, which is your money going out the door, You have a 1200+ CFM kitchen range hood in a small kitchen. 567 + 102 (from the above ductwork calculations) = 669 CFM. But if your ducting is already in place and you don’t plan on modifying it, you’ll have to take stock of your ducting before deciding on your range hood CFM. Gas ranges produce a lot more heat and fumes compared to an electric range so their CFM demands are higher. Be sure your hood is at least a size or two up from your stove or has three to six inches overhang. Now that you’ve calculated the minimum requirements for your range hood’s CFM, remember that, in most cases, it’s a good idea to scale it up.Scaling up is especially beneficial for island range hoods, which are exposed to your kitchen air on all sides. But it is not always your best option if you: If your range hood lacks variable speeds, you will have no choice but to run it at a higher cubic feet per minute than you might need when you’re cooking less intensively. What kinds of foods do you like to cook? Your range hood’s ducting will have a significant impact on your CFM needs. A 10 CFM air compressor will work for most people, however, some of the larger tools require 15 CFM or more. QUESTION: 15 m3/h = ? Take it all into account when calculating the CFM for your outdoor range hood. 34,020 cubic feet ÷ 60 minutes per hour = 567. Be sure that this answer lies within the higher end of the recommended CFM for the diameter of your ducting; otherwise, it will have to be adjusted. All rights reserved. Converting cubic meter per hour to cubic meters per second value in the flow rate units scale. First, take the highest CFM rating you arrived at between either the width of your stovetop, the output of your burners, or the volume of your kitchen. More cubic feet per minute is almost always better since you can run your range hood on lower speeds if you don’t use the max power often. More on the different types of blowers here.