Aladdin HV30 Self-Bleed Automatic Radiator Valve (

I changed out my central heating, going from copper pipes to Hep2o, and installed 6 new radiators (4 being tall ones). Since installing them, the heating has always been a bit noisy, gurgling sound in radiators, dripping sounds, etc.Tried draining the system and refilling (a few times), regular bleeding, adding inhibitor, adjusting the valves, but nothing seemed to work. Just recently I replaced all the radiators and TRVs again (like for like - the radiators I originally got had a manufacturing fault and the paint had started to blister after just 18 months).After this the sound seemed worse, and also got a very nasty new vibration sound in some of the radiators that was really loud, a slight turn of the TRV would make it stop.Tried bleeding again as this was suggested as a fix for the loud vibration noise from google research, balancing, all to no avail.These were a bit of a last ditch attempt and they have made a massive difference. Installation was really easy, installed them on the 4 tall radiators we have, taking about 10 minutes per radiator. Once installed there is nothing more to do except use heating as normal and let them do what they were designed to do.After the first night all noises from the radiators stopped, no more gurgling or dripping sound, no nasty vibration on the TRVs - amazed by them. The significant nose I hear now is from the boiler at the opposite end of the house! The heat output also seems to have improved a fair bit, but that could be due to the recent cold-spell making it appear to be throwing out more heat.Would really recommend them, at this price point and due to ease of installation they really are worth a try if you have a noisy system or want to see if you can get any improvements with heat output/efficiency.

I have a radiator upstairs that always seems to get air - I have tried troubleshooting it but get nowhere - and I ended up having to bleed it each day this Winter. Saw these, cheap so worth a go - and they work! Easy to fit into the radiator - just screws in - when you open the valves you can here air coming out of this unit and then a tiny drop of water as the top level is reached, and then that is it.Haven't had to bleed the radiator since...Very happy with it so have bought some more 'just in case'.

I bought these for my bathroom radiator which is forever needing bled because it's too tall and not enough pressure is coming from the gravity tank in the attic. Easy to fit. All you have to do is turn off both valves at the bottom of the radiator which isolates the water in the radiator. Screw the old vent off and fit one of these. Please please do not call a plumber to fit these - it's very easy to do. Quick delivery too.

Fitted a couple of these about a month ago and so far the do seem to be doing the job, after years of "cold top" rads upstairs I no longer have the weekly job of going round them all with a key.One was fitted to a radiator that was replaced last year, that job was easy ( 2 minutes) ..but..the other needed to go on one of the original 1980's radiators and THAT is the reason I can only give this product 4 stars. Maybe they should mention that it is NOT a fast fit on these elderly rads. Firstly, I had to file the end of the radiator to get it totally flat as these valves have a shoulder that has to seal on the end edge, and secondly, there was only just enough thread on the valve, just 5 mm more would've helped .. anyway, after a generous winding of PTFE tape, the job was done and it does work so overall pleased with the result.Would I recommend? of course, just that it may not be quite as easy if you don't have perfectly smooth ends on your radiators.UPDATE : a week after I wrote this, one of the valves seems to have stopped working and I have a half cold radiator again ( grrrr ), despite contacting the suppliers, to date I have had NO response from them so..maybe I was a little hasty to recommend??

Each pack has 2 valves. Slightly cheaper at time of writing than buying them individually.Fitting is easy (assuming you are happy draining a central heating system! I suppose that's a bit of a caveat!)Drain your central heating in the normal way, get a really long wrench (longer = better = more torque and less possibility of damaging or mangling the valves you are removing), and apply very gentle pressure downwards to turn existing bleed valves (at top of rad) anti-clockwise. Warning, they might be messy with black grime when you remove them. I used some kitchen roll to clean the thread on the radiator before fitting the new ones. The new ones screwed right on, no problems. Applied a little pressure to tighten but it felt very obvious even for this novice plumber!I learned about these little things from a youtube bloke called "Ultimate Handyman" - generally trust everything this guy says. I have just drained my central heating system, plumbed a Magnafilter in, and at the same time fitted these Aladdin automatic bleed valves. When I filled the system back up from empty, it took 30 seconds! Normally I'd have to half-fill, run upstairs to a radiator to bleed it, run back down to the boiler and fill some more, each time stopping to run around the house to bleed rads. (Each time, risking spluttering dirty water on our nice white walls!)These things are frigging magic. Basically, no more running, just open the tap to let water into the system, stop when it's at 1.5 bars, and boom - all the rads work to their full efficiency all the time! No more bleeding rads, ever!I have fitted them onto 7 rads so far (all from one boiler) and plan to fit another 8 on our second heating boiler when I get around to it!