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How to remedy the problem if there is no auxiliary flue?

2026-01-13 15:50:35 Real Estate

How to remedy the problem if there is no auxiliary flue?

In modern residential design, the auxiliary flue is an important part of the kitchen smoke exhaust system. However, some old houses or houses with irregular design may lack the auxiliary flue, leading to problems such as poor smoke exhaust and oil smoke backflow. This article will provide you with detailed remediation plans based on the hot topics and hot content on the Internet in the past 10 days.

1. The function of the auxiliary flue and the impact of its absence

How to remedy the problem if there is no auxiliary flue?

The main function of the auxiliary flue is to prevent the backflow of oil smoke and improve the smoke exhaust efficiency. If the auxiliary flue is missing, the following problems may occur:

Question typeSpecific performance
Oil smoke backflowThe neighbor’s oil fume enters the kitchen through the public flue
Low smoke exhaust efficiencyOil fume cannot be discharged quickly, resulting in a greasy kitchen
safety hazardLong-term accumulation of oil fumes may pose a fire risk

2. Remedy plan without auxiliary flue

For the problem of missing auxiliary flue, the following are common remedies:

PlanSpecific operationsAdvantages and Disadvantages
Install check valveInstall a check valve at the entrance of the flue to prevent the backflow of oil smokeLow cost, but cannot completely solve the problem of smoke exhaust efficiency
Renovate the flue structureInstall auxiliary flue partitions in the original flueThe effect is good, but the construction is complicated
Use a powerful smoke extractorChoose a range hood with high suction power and forced smoke exhaustEffective in the short term, may increase energy consumption in the long term
External smoke exhaust ductDirect external pipes to exhaust oil fumes outdoorsComplete solution, but requires property management approval

3. Suggestions for selecting remedial solutions

Choose the appropriate remedial solution based on the structure of the house and actual needs:

1.Temporary solution:If you have a limited budget or live in a rented house, your priority is to install a check valve or replace a powerful smoke exhauster.

2.Long term solution:If you own your own house, it is recommended to modify the flue structure or connect an external smoke exhaust pipe to solve the problem once and for all.

3.Things to note:Any modifications need to be communicated with the property owner in advance to avoid violating building codes. During construction, attention must be paid to sealing to prevent smoke leakage.

4. Recent hot and related topics

Combined with the hot content on the entire network in the past 10 days, the following are the secondary flue issues that users are most concerned about:

topicAttentionTypical questions
Old house renovationhighHow to install a secondary flue without damaging the structure
Oil smoke backflowhighThe phenomenon of oil fume backflow intensifies during high temperatures in summer
Smart solutioninBuying Guide for New Intelligent Check Valve
Decoration disputesinNeighborhood conflicts caused by flue renovation

5. Preventive measures and daily maintenance

Even after remediation, you still need to pay attention to routine maintenance:

1. Clean the range hood and exhaust pipe regularly to prevent the accumulation of grease.

2. Turn on the range hood in advance when cooking, and turn it off later to ensure that the range hood is drained away.

3. Check the sealing of the check valve every six months and replace aging parts in time.

4. If smoke exhaust abnormalities are found, investigate in time to prevent small problems from turning into major failures.

Through the above analysis and solutions, even if there is no auxiliary flue, the kitchen smoke exhaust problem can be effectively improved and a healthier home environment can be created.

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