52°
Programmable thermostat Rondostat HR20UK £11 prime (1-4 weeks del) or £14.99 non prime @ Amazon
Programmable thermostat Rondostat HR20UK £11 prime (1-4 weeks del) or £14.99 non prime @ Amazon

Programmable thermostat Rondostat HR20UK £11 prime (1-4 weeks del) or £14.99 non prime @ Amazon

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It's not a computer game or a phone. What on earth could it be?

Top comments

zizzles59 m ago

Are you new to the internet? People complain about everything, that's …Are you new to the internet? People complain about everything, that's what comments sections and forums are for.


Not particularly new to the internet, been on it since 1994.

There's a reason why there are ratings on products and this one doesn't seem to have a particularly good rating.
15 Comments

Heat from me - although I wonder how good they can be, surely they’ll be affected by the heat from the radiator?

Lots of people complaining about them failing

Original Poster

alu355

Lots of people complaining about them failing


Are you new to the internet? People complain about everything, that's what comments sections and forums are for.
Edited by: "zizzles" 3rd Jul

Heat! Lol literally with this... ordered despite failures as even if it does not work out I'd be happy to gut this and build my own wireless controller at this price!

I think these are Honeywell units before they went to the wifi version which is good but payback would be 4 years for me.
These are ok if you have the heating during to day but don't need bedrooms to temp till evening, they stay at set back temp.

zizzles59 m ago

Are you new to the internet? People complain about everything, that's …Are you new to the internet? People complain about everything, that's what comments sections and forums are for.


Not particularly new to the internet, been on it since 1994.

There's a reason why there are ratings on products and this one doesn't seem to have a particularly good rating.

Anyone know how easy these are to fit if you don't already have TRV valves? All the reviews say they are easy to fit if you are replacing TRVs, but what about from scratch? Do you need to drain the system or can you do it whilst keeping the system as is?
Thanks in advance!

rob5110

Anyone know how easy these are to fit if you don't already have TRV … Anyone know how easy these are to fit if you don't already have TRV valves? All the reviews say they are easy to fit if you are replacing TRVs, but what about from scratch? Do you need to drain the system or can you do it whilst keeping the system as is?Thanks in advance!



If you have standard non-thermostatic radiator valves that look like these:

http://wickes.scene7.com/is/image/travisperkins/largeNormal/Radiator-Valves-Wickes-Angled-Radiator-Valves-15mm-Pack-2~C7322_421550_00?defaultImage=travisperkins/missing-product

.....then any thermostatic valve head (whether electronic like in this post, or manual) cannot be fitted without changing the valve body. This usually means the system will need draining.

If on the other hand you have a valve body that looks like this under the plastic cap...

hdsupplysolutions.com/wcs…jpg

....then you simply screw on a thermostatic body, either manual or electronic.



Edited by: "aleem" 3rd Jul

I imagine the little motor fails because it has to push in the thermostatic valve, if you've tried pushing these with a finger you'll know they need some ooomph to do so and I imagine a plastic cogged motor that this probably has will fail as the hot and cold will make the plastic brittle and fail. Pure speculation as I've not seen one apart but I can imagine that's why these have a number of failures reported.

aleem

If you have standard non-thermostatic radiator valves that look like … If you have standard non-thermostatic radiator valves that look like these:http://wickes.scene7.com/is/image/travisperkins/largeNormal/Radiator-Valves-Wickes-Angled-Radiator-Valves-15mm-Pack-2~C7322_421550_00?defaultImage=travisperkins/missing-product.....then any thermostatic valve head (whether electronic like in this post, or manual) cannot be fitted without changing the valve body. This usually means the system will need draining.If on the other hand you have a valve body that looks like this under the plastic cap...https://hdsupplysolutions.com/wcsstore/ThdsMroUs/product/fm/large/29/290134_K_L.jpg....then you simply screw on a thermostatic body, either manual or electronic.



Thank you - I think they are the first type, which is a pain, but I'll check later. Thanks for the info.
Hope you have an amazing day.

For those that like to hack/tinker: open source software for some additional functionality: https://github.com/OpenHR20/OpenHR20/wiki/1.)--Home

It's possible to install a small transceiver board into the body of this valve to allow control over a network.

Edited by: "aleem" 3rd Jul

zizzles

Are you new to the internet? People complain about everything, that's … Are you new to the internet? People complain about everything, that's what comments sections and forums are for.



Lush.

aleem

For those that like to hack/tinker: open source software for some … For those that like to hack/tinker: open source software for some additional functionality: https://github.com/OpenHR20/OpenHR20/wiki/1.)--HomeIt's possible to install a small transceiver board into the body of this valve to allow control over a network.



That's awesome - Glad I ordered 2 now! I was thinking about using an ESP8266 to wifi enable it! Should be more versatile than 433Mhz

These are cheap for a reason.
Tried and failed.
I now have Terrier iTemps, great, programmagle from a laptop and just work well with no issues,

chippedskyboxes3rd Jul

Heat from me - although I wonder how good they can be, surely they’ll be a …Heat from me - although I wonder how good they can be, surely they’ll be affected by the heat from the radiator?

You would kinda hope they were wouldn't you otherwise what would be the point?
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