Unvented cylinder size

[Notagainpike]

Lost how mate? A new boiler and unvented cylinder with the boiler wired to a external weather sensor , I've recommended a water softener above . Kop

SO, at present im on a y plan, am i right in thinking, with an unvented a cylinder, it would be best to change over to an s plan, with the two valves close to the boiler? And if so, do i require an extra 5 or 6 core wire to link up new valves,??
If the y plan stays, i assume the new valve just goes near the cylinder somewhere and gets wired to the control centre....

Just want to try and do half a job! But do it right once!
New boiler is a bit costly at present...

 

[Chuck]

SO, at present im on a y plan, am i right in thinking, with an unvented a cylinder, it would be best to change over to an s plan, with the two valves close to the boiler?

Weather compensation, if that's what you are still considering (I've lost track), is incompatible with standard S-plan with a cylinder as one zone because most of the time the CH water is below the 65°C minimum needed to heat the cylinder.

 

[Notagainpike]

Weather compensation, if that's what you are still considering (I've lost track), is incompatible with standard S-plan with a cylinder as one zone because most of the time the CH water is below the 65°C minimum needed to heat the cylinder.

Me 2!

 

[king of pipes]

Various ways to do it but here's the Ideal wiring diagram for their heat only boiler and unvented cylinder with a outdoor sensor installed .Kop

 

[king of pipes]

SO, at present im on a y plan, am i right in thinking, with an unvented a cylinder, it would be best to change over to an s plan, with the two valves close to the boiler? And if so, do i require an extra 5 or 6 core wire to link up new valves,??
If the y plan stays, i assume the new valve just goes near the cylinder somewhere and gets wired to the control centre....

Just want to try and do half a job! But do it right once!
New boiler is a bit costly at present...

5 core and basically yes I'd change the 3 port to two or even 3 - 2 ports zone valves does your property need to be as warm upstairs as it does downstairs?

 

[Notagainpike]

5 core and basically yes I'd change the 3 port to two or even 3 - 2 ports zone valves does your property need to be as warm upstairs as it does downstairs?

Bungalow....

 

[king of pipes]

Bungalow....

Big bungalow? Still applies bedrooms and living areas can be split up all these little things add up to more control over your heating and savings on energy, the one big thing to remember is insulation 350 mm in your loft space is now the norm walls , floors I'd do the lot if I could in reality you probably can't but just do what you can.

 

[Enthalpy]

Here is a Glow-worm compatibility matrix:

https://www.glow-worm.co.uk/glow-wo...ntrols-compatibilty-matrix29-11-13-157183.pdf

With system or open vent boilers the wiring centre and motorised valves can be fitted in the airing cupboard near the hot water tank. An ebus cable is required between the wiring centre and boiler to communicate whether the heat demand is for the radiators or the hot water tank.

 

[Notagainpike]

Big bungalow? Still applies bedrooms and living areas can be split up all these little things add up to more control over your heating and savings on energy, the one big thing to remember is insulation 350 mm in your loft space is now the norm walls , floors I'd do the lot if I could in reality you probably can't but just do what you can.

4 bed, yeah, i suppose its big by todays standards, 80s...so insultaion is poor at least...on a hill to, so we catch the easterly blows!

 

[Knappers]

As KoP suggested the best thing you can do to improve efficiency and comfort is to improve insulation - it really can't be overstated!
Weather comp is underrated too I think and is definitely possible with s-plan type setup. You could search for X-plan as an option, it does start to get a bit technical but well worth a try.

 

[Last Plumber]

A 150l... really??

Going off what you want, yes, plenty. I did say it needs assessing by the installer and as @Chuck pointed out, only you know what you use and what you tell the installer you use.

 

[EvilDrPorkChop]

Going off what you want, yes, plenty. I did say it needs assessing by the installer and as @Chuck pointed out, only you know what you use and what you tell the installer you use.

150 is no where near enough.

 

[Last Plumber]

150 is no where near enough.

Just re-read initial post following your comment. You may well be right. I thought it said no more than 7 min.

 

[Last Plumber]

probably spend way more than 7 mins at a time tbh!

I just re-read this. I first read it as no more than 7 minutes at a time. Apologies, how long are you in there? 7 minutes is a long shower in my book. If it's going to be over 10-12 min each one after another, go bigger.

 

[Notagainpike]

I just re-read this. I first read it as no more than 7 minutes at a time. Apologies, how long are you in there? 7 minutes is a long shower in my book. If it's going to be over 10-12 min each one after another, go bigger.

No idea! Ive never timed it tbh!!
I have more on my plate than thinking about shower times at present....selfish but true....shower time is my escape, my down time

 

[Notagainpike]

Is there a place on here to find a local chap to me?

 

[EvilDrPorkChop]

Where are you might help

Tbh i'd go off local recommendations from people who have actually used someone. Don't use Facebook or CheckATrade.

 

[Chuck]

Tbh i'd go off local recommendations from people who have actually used someone.

Agreed. Alternatively, if that doesn't work, try the cylinder manufacturer's website. They'll usually list several 'approved installers' for your area. They'll have done the manufacturer's product-specific training and you may get a longer warranty if you use them.

 

[Notagainpike]

1900 labour for two days two blokes, minus the spark....
Seems rediculous to me...

 

[EvilDrPorkChop]

1900 labour for two days two blokes, minus the spark....
Seems rediculous to me...

Is that INC VAT and you supplying all the materials and sourcing them? Or they sorting materials too.

 

[Notagainpike]

Is that INC VAT and you supplying all the materials and sourcing them? Or they sorting materials too.

Thats purely the labour content.inc vat. I have the cylinder, they say to supply pipe and fittings. Plus 1 zone valve.
Change y to s plan.
Move mag filter, as apparently its only on heating return and doing nowt for the boiler.
Raise f+e tank in loft.
Fit cylinder in loft on platform ive built.
Pipework to be run up new airing cupboard wall. Its a blank canvas in my book...

Am i so out of touch with life in 23!!?

 

[ShaunCorbs]

I would say 3 days with lagging and the discharge pipework that runs externally u less you have a soil vent up there

 

[EvilDrPorkChop]

Depends where you are. But we’re billing out at £300+VAT per day per man, plus your materials. So it’s probably not a million miles away.

 

[ShaunCorbs]

Also I would recommended sealing the system as the cylinder is in the loft high chance of pumping over

 

[Notagainpike]

I would say 3 days with lagging and the discharge pipework that runs externally u less you have a soil vent up there

3 days for 1 man?
NO, no soil vent, but there are easy options for discharge i would think...

 

[Notagainpike]

Also I would recommended sealing the system as the cylinder is in the loft high chance of pumping over

What do you mean by sealing?

 

[Notagainpike]

Depends where you are. But we’re billing out at £300+VAT per day per man, plus your materials. So it’s probably not a million miles away.

Yeah, 360 a day, what is a plumbers day??
Wheres that abouts??
I wouldnt be suprised by that sort of figure....but 450ish seems crazy in south west

 

[ShaunCorbs]

3 days for 1 man?
NO, no soil vent, but there are easy options for discharge i would think...

Yes or 4 if it’s a pain discharge has to be copper or high temp plastic and if over x m it has to be 28mm it can’t be overflow tube

 

[ShaunCorbs]

What do you mean by sealing?

Expansion vessel and filling loop for the heating system instead of a f and e tank

 

[Notagainpike]

Expansion vessel and filling loop for the heating system instead of a f and e tank

I see. Wasnt going to bother pressurising the heating tbh. At present anyway... is this the best way to go?
What are the afvantages of doing this??

 

[Notagainpike]

What do you mean by sealing?

Why high chance of what pumping over??

 

[ShaunCorbs]

I would as your having the cylinder in the loft better heat up times customers report and not open to atmosphere so better water quality if flushed

 

[ShaunCorbs]

Why high chance of what pumping over??

You haven’t much head from the top of the cylinder coil and bottom of the f and e tank at present you have around 2.4m ish with a cylinder in the loft maybe 1-1.5 m max

 

[Notagainpike]

You haven’t much head from the top of the cylinder coil and bottom of the f and e tank at present you have around 2.4m ish with a cylinder in the loft maybe 1-1.5 m max

Sorry boss, you lost me.....am i right in thinking the f+e tank needs raising as high as possible above the cylinder??

Its a bungalow...

 

[ShaunCorbs]

Yes you want a min of 2m above the coil of the cylinder to the bottom of the f and e tank