Aero Disposable Freeze Kit 8-28mm

I wanted to remove 6 old TRV's (Thermostatic Radiator Valve) on radiators and fit new ones but that I didn't want to do was do them all in one go (I actually did one a day !), and I also didn't want to drain the whole system either... enter this great kit ! Please not one kit will do TWO radiators, so I needed 3 kits. First you should fully close the valve at the opposite end where the TRV valve is (usually has a small push on cover over it) then next fully close the old TRV... i.e. set to lowest setting (1)… then slacken the nut from the TRV nearest the radiator, thus allowing all the water to drain from the radiator - on my smallest radiator it took 2 dishes of water, so make sure you have a bucket or two to empty the water into (there will be more water than you think) and a couple of old towels in case of leakage ! Next it was time to use this brilliant kit... you first fasten the blue insulating sleeve around the pipe using the sliding fastener provided and then secure it 'very tightly' at the bottom to the pipe with the cable tie provided. Then you attach the little pipe to the aerosol and squirt the cold spray into the jacket pushing the nozzle into the inside of the jacket, next to the pipe. You need to keep topping it up a little at time until you have used half of the aerosol, and you then need to leave it about 5 minutes so the 'ice plug' form in the copper pipe. (Full instructions are included.. PLEASE READ THEM, this is just a quick summary !) After 5 minutes or so I slowly opened the TRV to maximum (6) to make sure no water came out (this shows the ice plug has formed, if you get water coming out, close the valve again (1) quickly and squirt more aerosol in... but I had no problem with any of my 6 valves) you can then remove the old TRV and in my case I used a professional pipe cutter which you put on the pipe and turn it one turn but you can use a hacksaw then file the top of the pipe smooth, it just takes longer and is more fiddly. After removing the old valve to can fit the new one, I made sure the new one was closed (once again, set to "1") and have the nut and olive to hand so you can fit it to the pipe straight away... don't forget all your tools too, so you don't have to go out to the shed for 10 minutes to find them, the plug could melt in that time, please, please, prepare ! The pipe should stay frozen for up to 20 minutes, but I managed to change each valve in 5-6 minutes max. When that is fitted, attach the other end of the valve to the radiator, remove the blue insulating coat by cutting the cable tie and removing the slider... open the valve at the other end of the radiator, then wait 10 minutes or so for the pipe to fully thaw out and check for leaks... bleed the radiator at the top, then you can fire up your central heating and once again check for leaks. This freezer kit is excellent and really saves you a lot of time and trouble draining the system, as you have to attach a long pipe to the lowest drain point of the system which then has to be run outside of the house to get rid of all the water. Trust me it is not fun and takes ages, then it takes ages to refill the system, this kit is SO much easier ! Hope this helps !

Easy to use but very expensive freezer spray. Recommends using at least half a can. Replacement is £20.

I have only used this on a vertival pipe. It froze a 15mm copper pipe quickly. I needed to replace a raiator valve. I have about 1/2 of the can left for another pipe if needed.

I had to replace the washer on the cold water main entering my flat. This would normally mean closing off the supply to the building and inconveniencing the other five flats and up to twenty people living here or calling in a plumber with an electric freezing machine. Instead I used this stuff to seal off the stop cock valve so I could work on it and the job was done in half an hour. The pipe I froze was a 15mm copper water pipe, the instructions said that half a can would do it but I used the whole can as I was not going to risk it. Froze the pipe solid after a five minute wait, and it slowly started to thaw after 15 minutes which was plenty of time to replace the washer and clean the valve seat. Stop cock works perfectly now, this product made a tricky job simple. Brilliant.

Not very good. Says to spray for 3 minutes which is a full can’s worth. Then it says you have 10 minutes working time. After 40 seconds the frozen plug is popping out or the 15mm copper pipe, so you are stuck with your finger on the frozen plug whilst trying to fit olives and fittings. And getting wet. Did this in a very cold kitchen in February.

Product did not work out the box following the instructions. You cant get a tight enough wrap with the cable ties when using the hard plastic sleeve clip as the instructions said as its not flexible. If you cut the sleeve clip to allow for the cable ties on the end the sleeve wont seal properly. You can wrap the ends in lots of tape to stem the flow, but by the time you have tested this there is not enough spray for the second pipe. Had to drain the system in the end due to the unreliability of this expensive product. It did not freeze the pipe to allow for removal. Would not recommend

Works lovely couple of min spay give me half hour to change radiator valves held all the pressure in the system for me aloud me to change 2 valves all done in a 10m it's a good bit of kit, get prepared for the operation with all your tools freeze you pipe and your be sorted

Nothing wrong with this product except the price, but it was the cheapest I could find at the time.

doesn't work for me

I needed change the Watermain going from the street to the house at the curb. This worked like a charm to freeze the pipe so I could change the defective curb stop otherwise known as Watermain at the curb. I cut off the defective valve and then installed the new one without a hitch. I highly recommend it!!!

I read the reviews and there were a lot of negative comments about the pipes not freezing and general dislike for the product, but I pushed those comments aside and purchased it anyway. I had to replace a pressure relief valve on a closed loop HVAC system. Whoever designed my cooled water system failed to put in a shutoff valve for the eventual replacement of the pressure relief valve, so creating a frozen water block seemed like a great option. Like many other reviewers, this did not completely freeze the lines. Could have been that my closed loop water system has antifreeze in the water, could be the product is garbage like the others said bottom line is it did not completely freeze the water in the pipe. I think it did freeze some (and I used almost all 300 ounces of the product. Most disturbing about this product is that it set off our Freon detector system. The Freon detector system triggers an alarm when the Freon level in the room is above a safe level. Both the R-134a and R-22 detectors went into alarm - significantly into alarm. The detected level was 2-3 times higher than the safe level. God knows how this might affect people in a fairly enclosed area (the room I was in is about 40 feet x 40 feet). I would be very cautious about using this product and do not recommend it.

Follow instructions to T did not freeze the pipe contacted seller. They have not responded. I would not recommend this product or buying this off. Amazon. They are no help. Bought a freeze kit locally and successfully froze the pipe with no problems.

purchased because i needed to add a shut-off valve to a line and i had to wait for the building super. the only complain is that i do not know how much to spray or when to stop because i do not want to also burst the pipe.