Programmable/Smart TRVs

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Hi,
My house has radiators and hot water all heated by an oil boiler. They are there a while and nothing is zoned. Most of the radiators have TRVs on them but I was thinking of changing these to either programmable or smart TRVs to give me better control.

I am having problems working out what I need to fit new TRVs. They ones that are there are all Orkli and seem to be 28mm. The pipe into them is 15mm.

Please see the photos below

upload_2021-10-3_13-59-43.png


upload_2021-10-3_13-59-2.png


All new TRV heads seem to M30*1.5

So, I'm guessing I need some sort of adapter to put on my existing TRV bodies or else I need to change all the existing TRV bodies.

I'm not sure which is the best way forward here. Any advice is appreciated. The adapters are relatively expensive at £12 each and the TRV bodies have obviously been there a while.

It might be better to change them completely but do all new TRV bodies come with M30 connections?

Thanks
 
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Joined
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Thanks for that. I'll have to check prices.

Will all new TRV bodies have M30 connections.
I've looked at a few online but while the quote the inlets and outlet pipe sizes they don't say much about the valve connection.
 

CBW

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I think the majority of new ones are all similar size, so yes probably 30mm.
 
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