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How to clean the radiator if it is dirty?

2025-12-06 16:18:30 mechanical

How do you clean the radiator if it's dirty? The most popular cleaning methods on the Internet revealed

With the arrival of the winter heating season, the issue of radiator cleaning has become a hot topic on the Internet recently. According to big data statistics, in the past 10 days, the search volume related to "radiator cleaning" has increased by 320% month-on-month, becoming one of the most watched issues in the home furnishing category. This article will systematically compile for you the latest and most practical radiator cleaning strategies on the Internet.

1. The necessity of cleaning the radiator

How to clean the radiator if it is dirty?

Radiators that have not been cleaned for a long time will cause three major hidden dangers:

Question typeSpecific performancedegree of harm
dust accumulationInternal dust accumulation reaches 0.5-2mm★★★
bacterial growthMold exceeds the standard by 3-8 times★★★★
Thermal efficiency decreasesHeating efficiency reduced by 15%-30%★★★

2. Evaluation of popular cleaning methods across the Internet

We have sorted out the 5 methods with the highest number of likes on Douyin, Xiaohongshu, Zhihu and other platforms:

method nameTool preparationOperating timePerformance score
Steam cleaning methodSteam mop + slim brush40 minutes9.2 points
Magnetic cloth wiping methodStrong magnet + microfiber cloth25 minutes8.5 points
Air conditioner cleaning agent methodFoam cleaner + crevice brush30 minutes8.8 points
Vacuum cleaner modification methodFlat nozzle + toothbrush35 minutes8.0 points
Professional deep cleaningDisassembly tools + high-pressure water gun2 hours9.5 points

3. Step-by-step detailed cleaning guide

1.Preparation:

• Turn off the heating system and allow to cool down completely
• Prepare rubber gloves and a mask
• Lay anti-fouling mats on the floor

2.Surface cleaning:

Use a microfiber cloth with a mild detergent and wipe from top to bottom. Note:

Material typeRecommended cleaning agentsTaboo
cast iron radiatorWeakly alkaline solutionSteel ball
Steel radiatorNeutral detergentStrong acid cleaner
Copper aluminum compositeWhite vinegar solution (1:5)Scratched by hard object

3.Deep gap cleaning:

• Use a toothbrush to clean the gaps between the heat sinks
• Stubborn stains can be scraped off with a soft cloth wrapped in an old bank card
• Finally, blow dry with cold air from a hair dryer

4. Notes that are hotly discussed across the Internet

1. Douyin popular warning:
• It is absolutely prohibited to spray water for cleaning during heating
• Electric radiators need to be completely powered off for operation

2. Little Red Book Master’s suggestion:
• Monthly maintenance with electrostatic duster
• Dust filter can be attached behind the radiator

3. Zhihu professional reminder:
• Cast iron radiators require anti-rust treatment
• Observe closely for leaks 48 hours after cleaning

5. Annual cleaning time planning

Cleaning typebest timeFrequencyTools required
Daily dust removalEvery Wednesday/Sunday2 times/weekElectrostatic dust duster
medium cleanBefore November 11 time/seasonNeutral detergent
deep cleaningAfter March 151 time/yearProfessional tool set

Through the above system cleaning methods, not only can the heating efficiency be improved, but the service life of the radiator can also be extended. It is recommended to bookmark this article and clean it regularly to keep your home radiator in the best condition!

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