does this reading of a polypipe manifold gauge ok?

Jemma01

Hi

I don't know what got to me and now I'm overthinking. I moved from thinking about replacing the flooring of the whole downstairs to researching my underfloor heating system (wet).

Upon digging, I have the drawings and the zones and I can see the manifold under the stairs. The gauge reading is on 33PSI. Google says this is within normal range but 36+ is high pressure. I'm worried that this is still rather high? Turned out it is the temperature and no presence of a pressure gauge in sight. I'm still unsure if this needs any maintenance

I've not serviced this system before, and the polypipe in their FAQ says their systems are maintenance free (if installed correctly), but I don't know if they mean the underfloor stuff or including manifold and whatever overground.

"Will the system need maintenance?

No, all our underfloor heating systems are virtually maintenance free, and all our underfloor heating products are covered by our industry leading guarantee." Source:

https://www.polypipe.com/housing/polypipe-underfloor-heating/faqs

Is this a source for a concern? The picture of the reading is here

doodling

Hi,

Without knowing more about your system it is difficult to say whether there is an issue.

In general, if it is stable in he long term (it will fluctuate up and down with the central heating water temperature) then it is probably OK

How tall is your house? A taller house will generally be expected to have higher CH pressures on the ground floor.

Lorian

Isn't it showing temperature?

QrizB

Isn't it showing temperature?

Yes, that looks like the degrees symbol that's just visible behind the pointer.

33 psi wouldn't bother me, and 33 deg C would be entirely normal, but we do need to know what the dial is measuring!

squirrelpie

I don't know what got to me and now I'm overthinking. I moved from thinking about replacing the flooring of the whole downstairs to researching my underfloor heating system (wet).

Be careful about things like that. I went from thinking about putting solar panels on my house to building a whole new house 🙄 😀

matelodave

That dial is a temperature gauge and not a pressure gauge - I have them on my Polypipe manifolds

Jemma01

https://forums.moneysavingexpert.com/discussion/comment/81893856#Comment_81893856

thats the thing, I don't do "if it's working leave it alone" 😆 I'm conscious if I leave it until it fails I wouldn't have a clue what to do. It's the first time I try to make sense of this system and I've lived in this house for a year and 4 months

https://forums.moneysavingexpert.com/discussion/comment/81893863#Comment_81893863

possibly I don't know 😰 I was expecting to see a pressure reading on it, but I can't find anything else

https://forums.moneysavingexpert.com/discussion/comment/81893865#Comment_81893865

I don't have any user manual for it, not even for the temperature thermostats.

Taking a Google pause......

I think it is the temperature, it appears that it wasn't a typical Polypipe Manifold installation to have a fixed pressure gauge but rather something used during installation for pressure testing. They also don't seem to recommend flushing the system post install.

https://forums.moneysavingexpert.com/discussion/comment/81893983#Comment_81893983

😆😆 The only thing saving me from this is the lack of funds; solar panels are the upcoming project, but of course I added fixing the fence before so the batteries aren't visible to the outside, because why not 🤦

https://forums.moneysavingexpert.com/discussion/comment/81894317#Comment_81894317

thanks a lot, is it the same installation with no pressure gauge? Have you received any instructions on maintenance?

squirrelpie

Hmm, a quick google leads me to https://www.polypipe.com/housing/polypipe-underfloor-heating and then very quickly to https://www.polypipeufh.com/underfloor-heating-products/underfloor-heating-manifolds/brass-manifold/ which says "The Polypipe brass manifold is supplied with a quarter turn isolation valve that incorporates a temperature gauge." So that seems pretty convincing to me. There's also https://www.polypipeufh.com/support-hub/ that seems to have more details. Good luck 😎