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Thank you for showing us how the whole thing actually works. In my case, the pin/plunger was stuck so I was not getting any hot water flowing inside the radiator. Fixed it by gently tapping it with the hammer and a bit of WD-40 afterwards to make sure it doesn't get stuck again anytime soon.

Should I leave the black dust cap off. I have loosened it and a small rush of air came out. Therefore if cap is left on no air will come out. 🤔

I feel this video would have been better with a close up of the valve. It was a bit hard to see in your hands. Animations would have helped a bit too. Other than that very well explained, I learned alot

Hi what is the difference between pressure reducing valve and pressure regulators?

Very nice, and useful!

Julia Fall

Doesn’t seem like you can still get these calculators, the website has a 404 error when I fill the form in.

Thank you so much for the information. This video would've been a lot cooler if the camera zoomed on your hand to see the components better, though. Cheers!

I love this channel - Well done and keep the videos and shorts coming

Does it release any water when releasing pressure?

Does installation orientation make a difference? Can it be installed in any position?

why is there a 3 minute long unskippable ad at the beginning for the video?! It is crazy

Rubbish system hot water didn’t work properly

Aargh.. with a new installation I was just about to wrap my antifreeze valves.. glad I checked but do wish they came with fitted purpose made insulation though 🤔

Looks great Ed 👍

You've gotta love it when a plan comes together - my quesiton was, does this thing detect the air or the water temp and as such, can I insulate the crap out of it as its on a heat pump an will be outside? First vid, 'how do you insulate the valve', well done!

You need to speak slowly young man, great advice here. Joe

The Thermostatic Element expands in the center depending on temperature, how does it do that? Is the metal just a metal with an expansion rate for heat that we found that is roughly acceptable and safe for most human skin?

Can you please tell us which unions you use either side of these valves?

How do I completely stop any water passing the valve so I can get the radiator off? Thank you

Good video thanks for uploading 👍🏻

How have you converted the kW outputs to Volume?

This valve is made of brass, so it is a very good conductor of heat, which means that not insulating this valve will compromise the heat retention. Effectively this valve seriously reduces the efficiency of the ASHP system.

Can you manually open the valve to empty the system? Or do you have to wait for the thermostat? For example if you know there's a long power outage.

How do you know if the thermostatic cartridge is faulty until the function of the valve is needed but not working (in other words, how do you know before it is too late to know)?

Aren’t there any filters that need checking???

What are the consequences of this valve functioning? When reaching temperatures of 3 degrees and below, I understand that the water is released out. But... can it be released only from the heatpump and leave rest of the water - from the inhouse heating system - intact? Or there is a risk of depressurising and emptying the entire heating circuit, also from inside the house?

Thank you

I want a mixing valve that fits where my existing valve is and does nothing but let as much hot water as I want into my soaking tub.

Thanks for sharing this. I recently replaced Myson TRV with one from Toolstation - the head only, which fitted on okay. I also did the same with one from ebay. When I switched the heating on, the room temperature was already 18 degrees in the two rooms and the trv was set on number 1, but the radiators still warmed up - eventually reaching 20 degrees, yet the TRV shouldn't have activated because number 1's temperature activation was no more than 14 degrees. I expected to turn the knob to number 3 if I wanted 20 degrees. Do some of these TRVs not work as expected for some reason? I could go out and purchase your brand but I am unsure if I might experience the same problem.

Interesting product. Can I use this in my loft on the water supply to my central heating's feed & expansion tank?

Have fitted two today! Incredible product.

Hi Ed, Excellent informative vedios as always. I am struggling to find the special spanner and replacement cartridge you presented on the Caleffi 535H series a year ago. Can you please advise where I pay be able to purchase them in the East Midlands UK. Thank you

you must change the design to include a waste exit on the hot side ; why ? because when you have a solarheater on the roof, you need to waste the cold water in the pipe till you got the hot one; Thinking to be used on dishwasher as well.

Does it significantly reduce the water flow? Thanks

Is the cap on a fillings loop for a pressure gauge?

Do you ship to the US?

How can I get one of these in the USA?

Absolutely loved this presentation Ed 👍 I am aware that this was posted a while ago but your products are leaps and bounds ahead of what I work with.

Good evening. I’m midway through your presentation and I’m finding it really informative. I’ve just started working on a university campus and one of the main buildings is comprised of student accommodation and a hotel. The original installation is a district system supplying multiple hiu,s . The main problem in my opinion is the hot water primary pipe work supplying the required heat to the plate exchanger . Although the pipe work is insulated the heat generated by the primary circuit throughout the building and in the risers creates a level of radiant heat leading to constant complaints. I would like to hear what you think mate. 👍 Many thanks, and kind regards, Les.

P R O M O S M

In my shower it disperses only hot water at all temp settings. Does it matter if cold or hot lines are incorrectly connected? Please advise. Thanks

Does this empty the system if the pipework drops below 3 degrees?😊

Great, concise content.

like that

Any filter you can visibly see the iron oxide/ buid up through is a winner, however i would like to see a more substantial sized magnet incorporated within. All the best. Kane Plumbtek

The chamber does not look big enough if the system was heavily clogged also is that magnet big enough?

Do you just need 1 valve near the heat pump or one on the flow and the return from the heat pump?

Nice wanted to get the tec spec but your download section only has a picture.

I've searched but can't find how the thermostat function is achieved? Is it like the wax filled automative themostat?