Plaster-in valves

[jayc89]

Any suggestions? I have 90mm duct going into 125mm plenums. Would prefer a plaster-in/frameless valve in each room, if possible, but the ones I've seen so far are approx £70 each!

[Nickfromwales]

£70 is a good price. What were you expecting to pay when the petrol service station looking ones are a couple of those 7 tenners or more!

 

Do you have a link to what you’ve seen? I’m spec’ing these for all my projects, the regular ones have never sat well with me, and my clients agree. Plaster in ones ( round and linear ) are just wonderful looking things by comparison. 
 

Lemonade job = a couple of tenners.

Champagne job = ‘more’   

[jayc89]

2 hours ago, Nickfromwales said:

£70 is a good price. What were you expecting to pay when the petrol service station looking ones are a couple of those 7 tenners or more!

 

Do you have a link to what you’ve seen? I’m spec’ing these for all my projects, the regular ones have never sat well with me, and my clients agree. Plaster in ones ( round and linear ) are just wonderful looking things by comparison. 
 

Lemonade job = a couple of tenners.

Champagne job = ‘more’   

 

I think these were the cheapest I could find - https://www.ventilationland.co.uk/product/46223/frameless-ventilation-valve-round-o-125-mm.html

 

I'd also have a problem fitting them to be fair. They look like they need to be fitted from above (lugs sitting on top of the PB, rather than beneath it like plaster-in downlights), and I have a cold roof with the AVCL running across the bottom of the roof joists, so no access from above... 

[Nickfromwales]

59 minutes ago, jayc89 said:

 

I think these were the cheapest I could find - https://www.ventilationland.co.uk/product/46223/frameless-ventilation-valve-round-o-125-mm.html

 

I'd also have a problem fitting them to be fair. They look like they need to be fitted from above (lugs sitting on top of the PB, rather than beneath it like plaster-in downlights), and I have a cold roof with the AVCL running across the bottom of the roof joists, so no access from above... 

You slot them in from underneath once the hole is cut, and then you screw up through the plasterboard and into the metal tabs  

[jayc89]

19 minutes ago, Nickfromwales said:

You slot them in from underneath once the hole is cut, and then you screw up through the plasterboard and into the metal tabs  

 

I only have a 25mm service void between PB and AVCL running across the bottom of the roof joists. The plenum sits above and penetrates through the AVCL, screwed into the joists. I doubt I'll have the wiggle room to slot them in from underneath like that. 

 

I did wonder whether I could make an inverse hatch. Screw the valve onto a square of PB 600x600 (to match my service void battens), push that up to engage the plenum, as I should be able to get my hands in to make sure it's snug, then carry on with full lengths of PB again. A bit nasty? 

[jayc89]

1 hour ago, jayc89 said:

 

I think these were the cheapest I could find - https://www.ventilationland.co.uk/product/46223/frameless-ventilation-valve-round-o-125-mm.html

 

I'd also have a problem fitting them to be fair. They look like they need to be fitted from above (lugs sitting on top of the PB, rather than beneath it like plaster-in downlights), and I have a cold roof with the AVCL running across the bottom of the roof joists, so no access from above... 

 

Just found 2x for £70 on eBay. The Yorkshireman in me is much happier with that price. 

[Nickfromwales]

13 hours ago, jayc89 said:

 

I only have a 25mm service void between PB and AVCL running across the bottom of the roof joists. The plenum sits above and penetrates through the AVCL, screwed into the joists. I doubt I'll have the wiggle room to slot them in from underneath like that. 

 

I did wonder whether I could make an inverse hatch. Screw the valve onto a square of PB 600x600 (to match my service void battens), push that up to engage the plenum, as I should be able to get my hands in to make sure it's snug, then carry on with full lengths of PB again. A bit nasty? 

A means to an end, is what that option is   

Carry on, as these are 1000% worth every ounce of your time and effort.

”If it was easy……..”

[GaryBixhall1984]

I bought these from VentillationLand - the ErgoVent and I love them. Do you have a link to the eBay for 2 for £70?!?! Thanks!

[jayc89]

4 minutes ago, GaryBixhall1984 said:

I bought these from VentillationLand - the ErgoVent and I love them. Do you have a link to the eBay for 2 for £70?!?! Thanks!

 

Well I do, but it's ended, because I bought them

[GaryBixhall1984]

Ah got you! I'll keep an eye out for more!

 

[Alan Ambrose]

Resurrecting this old thread - has anyone seen plaster-in vents with filters?

[Nickfromwales]

14 minutes ago, Alan Ambrose said:

Resurrecting this old thread - has anyone seen plaster-in vents with filters?

Dont you just want to catch this crud at the unit filters, vs climbing up and getting fingerprints on the room vents? 
 

Unit filters are cheaper than shoplifting so why add the ballache of having to micro-maintain this? 

[Alan Ambrose]

Well good point - I had a vague thought that it would be good to keep the extract pipes clear of dust.

[JohnMo]

I use cone filters in the extract terminals, you would be surprised how much stuff they keep out the ducts.

[Nick Laslett]

@Alan Ambrose https://www.paulheatrecovery.co.uk/product/filter-cone-125/

 

Use on kitchen extract. 

[Super_Paulie]

Jumping onto this, any problems with fitting one of these Ergovents above my shower enclosure? I like the minimal look compared to the warty ones which are the usual.

[Nickfromwales]

40 minutes ago, Super_Paulie said:

Jumping onto this, any problems with fitting one of these Ergovents above my shower enclosure? I like the minimal look compared to the warty ones which are the usual.

All good, afaic, but most designers will favour it (having the extract location) being placed outside the shower area.

 

No idea why, but in small rooms I guess it’s completely moot.

[Super_Paulie]

23 minutes ago, Nickfromwales said:

All good, afaic, but most designers will favour it (having the extract location) being placed outside the shower area.

 

No idea why, but in small rooms I guess it’s completely moot.

 

Really, I was under the impression that directly above the source of steam was best.

[JohnMo]

Scottish building regs point you to having them at the source of steam either over shower or bath. We have then directly in shower space in two rooms and above the bath in another, but we use the shower in that room most the time. Both layouts work well.

[Nickfromwales]

1 hour ago, Super_Paulie said:

 

Really, I was under the impression that directly above the source of steam was best.

Apparently not, but I am as bemused as you are.

 

Men in white coats holding clipboards say differently, so who am I to contest......

 

 

 

 

 

 

 

Disclaimer: I contest EVERYTHING!

[Nickfromwales]

35 minutes ago, JohnMo said:

Scottish building regs point you to having them at the source of steam either over shower or bath. We have then directly in shower space in two rooms and above the bath in another, but we use the shower in that room most the time. Both layouts work well.

I'm a big fan of extracting or supplying as far diagonally opposite the door as is practicable. Airflow across the whole room will (should always) steer my design / execution; not lost a patient yet.

[JohnMo]

2 minutes ago, Nickfromwales said:

I'm a big fan of extracting or supplying as far diagonally opposite the door as is practicable. Airflow across the whole room will (should always) steer my design / execution; not lost a patient yet.

Yep that should be the aim, I suppose by coincidence showers and baths tend to be away from the doorway, so win win 

[Super_Paulie]

Yeah my shower is pretty much opposite the door as it is. Just wondering if the gypsum based vent as discussed in this thread is more prone to getting damaged from moisture being in such direct contact with steam.

[-rick-]

4 hours ago, Nickfromwales said:

All good, afaic, but most designers will favour it (having the extract location) being placed outside the shower area.

 

No idea why

 

I vaguely remember seeing something about less potential cold drafts when showering if the fan is not directly above.

[Nickfromwales]

2 minutes ago, -rick- said:

 

I vaguely remember seeing something about less potential cold drafts when showering if the fan is not directly above.

You'd need a better plumber to make this a reality!