Can I Use Flexi Hose on Radiators

Can I Use Flexi Hose on Radiators?

Radiators are the best options one can use for heating up the temperature of a whole apartment. The central heating system in the radiator produces steam to pass through the pipes that causes surrounding temperature to rise. During the whole process, the solid pipings and connections play the most important roles. So, you must use some strong and sustainable connectors on radiators. Flexi hoses are recently the most efficient connectors. But can I use flexi hose on radiators?

Of course, It’s possible. You can use flexible hoses on radiators if the hose is fit for dealing with the maximum pressure and temperature of the radiator.  Honestly speaking, using Flexi hoses (both metal and plastic) is neither mandatory nor prohibited. 

The acceptability of Flexi pipe’s use in the radiator or central heating system in the home actually depends on the circumstance. For example, using plastic flexi on an industry-grade radiator can cause blockage or leakage. 

How Can You Use Flexi Hose on Radiators?

The use of  Flexi hoses on radiators are vastly common these days. Rather than using T connectors, plumbers use small flexi hoses to pipe the radiators at home. 

Sometimes, the alignment of the input and output point might not match with the pipes previously installed on the wall. In such cases using flexi hoses for leakage-free connection is the best idea. 

Flexi hoses are easier to connect to radiators than hard copper pipes. The hose is most often provided with an attachment kit. With the help of that kit, a flexi can easily attach the connections between radiators. 

After measuring the height of the radiator and connecting surface, bend the hose using your hands according to that measurement. The hose should be connected tightly. 

What Type of Flexi Hoses are Used in Radiators or Central Heating?

In a central heating system, copper pipes are used vastly. If using a flexible hose, tubes made with stainless steel are the safest. Smith’s 15 mm flexible hoses do the work effectively. 

Modern central heating systems have two pipe features, one is called a flow pipe and the other is a return pipe. With any of those pipes, one can attach a flexi hose just to keep the radiator easily connected properly without changing the positions of the connections. 

Apart from them, even ABS plastic pipes are good to use. But you can not use plastic pipes directly to the radiator as plastic pipes can not handle the maximum temperature. There is a possibility of a serious accident. 

And of course, the ideal split-off diameter should be 22 mm to 28 mm. Measure before you buy a Flexi hose whether it matches the radiator or not. 

Can I Use Plastic Hose on Radiators?

Plastic pipes or hose are not recommended for using directly in radiators. But plastic pipes like Push-fit barrier tubes are specially designed for using with radiators. Overall, this is a bad idea to use plastic pipes on large radiators. 

The joints of plastic pipes are not flexible at all. So, if there is any pressure or knock causes, it would result in serious leakage.

Read More: corrugated vs braided hose

Are Copper Tubes the Best Ones for Radiators?

Without any doubt, the answer is yes! Copper tubes are so far the best ones for using in the central heating system, especially on the boiler, valves, joints, and radiators. 

Copper pipes can be used for a long time. There is no chance of leakage, keeping the radiators clean. 

Also, the copper pipes are best for resisting vibration. Though they are expensive, they are on the top of the list for radiators. 

Can I Use Flexi Hose On Central Heating? 

One can use a Flexi hose on central heating only when the hoses are WARS certified. Tap connectors are not recommended for using on radiators or boilers. If an emergency case comes in, you can use it but not for too long. Only the WARS-certified hoses like SMITH’S are good to use.

What are the Other Applications of Flexi Hoses?

Flexible hoses are quite popular now because of their cost-efficiency along with convenient features. Flexi hoses are super easy to install; just bend using hands with no extra labor cost. 

WARS certified flexi hoses are safest and because of all the facilities being provided, they are high in demand even in power plants, refineries, and so on. 

Flexi tubes are excellent with compressed air applications, transferring gaseous fluids like air, steam, etc. liquid-like chemical oil, and water, connecting to the compressors.

Read More: heater hose vs coolant hose

Frequently Asked Questions (FAQs): 

Can You Use Flexi Hose on Shower?

Yes, you can! The shower valves have the option for hot and cold temperature settings and the temperature is mostly not that high. So, it is safe to use without a doubt. 

Can Flexi Hose Help In Carrying Fuel Safely?

Now, as the technology has improved, flexible hoses are pretty good at carrying fuel safely. Even in power plants and general manufacturing industries, Flexi hoses are used. They are now pretty safe to carry fuels like natural gas, diesel, kerosene, etc. 

Can I Use Flexi Hose with a Pressure Washer?

You can use Flexi hoses with a pressure washer but in some certain cases like between pressure washer and garden tap, or normal faucet. 

But it is not fully safe to use flexible hoses with a pressure washer. Do not ever use flexible hoses between water taps and spray guns. 


Overall, there’s nothing wrong with using a certified Flexi hose when you need to match the alignments of the radiator’s steam and water flow pipes. 

All you need to make sure is know the model you’ve bought has the required capacity to handle the temperature and pressure given by the central heating or radiator. If the dimension and sustainability match the required ranges, you’re free to use that Flexi hose.

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