If the manufacture say it is ok. And they warrant the job for 10 years then it is ok. But for future reference I will make sure they email me confirmation.😛😛 On that not I’m done. I will not be commenting again.
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Indirect Unvented cylinder, Combi Boiler and Nest Thermostat
- Thread starter Chris1012
- Start date
View the thread, titled "Indirect Unvented cylinder, Combi Boiler and Nest Thermostat" which is posted in Boiler Advice Forum on UK Plumbers Forums.
Bibbs118
Gas Engineer
Re read what I wrote.
I have done this with a worcester engineer employed by worcester.
It is acceptable.
I have done this with a worcester engineer employed by worcester.
It is acceptable.
Just come in on this one , will read it all later , just back off holiday, FFS phones going mad .
Bibbs118
Gas Engineer
So worcester can authorise an invented cylinders on say a vaillant combi or baxi?????
Bibbs118
Gas Engineer
If you don't have it in writing then you are not following instructions are you .
Just answer questions
YES OR NO DO YOU HAVE TO INSTALL TO MIs?
Can worcester authorise one of their own products ?
Of course they can .
A worcester was fitted on such set up and fitted and authorised along with guarantee themselves.
Job done money in the bank and all happy
Of course they can .
A worcester was fitted on such set up and fitted and authorised along with guarantee themselves.
Job done money in the bank and all happy
Bibbs118
Gas Engineer
That ok, am not saying it can't be done, am saying the poster needs a drawing, if no drawing is available then it's not permitted .
And saying I've seen it done loads of times does not mean it's right, I've seen loads of flue not clipped but that doesn't mean it's right .
You don't need a drawing / tech schematics
Doesn't mean it's unsafe or manufacturer arnt going to warrenty there boiler
Hell even if you fit the unvented incorrectly I'm sure they would still warrenty there boiler
Doesn't mean it's unsafe or manufacturer arnt going to warrenty there boiler
Hell even if you fit the unvented incorrectly I'm sure they would still warrenty there boiler
Bibbs118
Gas Engineer
So what your saying you DONT need to install to manufacturers instructions? Interesting.
More like common sense
In all honesty I would say 90 % of boilers I cone across are not installed as per MI
Bibbs118
Gas Engineer
The as long as you use common sense you don't have to follow MIs?
What if your common sense differs from my common sense. Because my common sense says always and without exception install to MIs, but you your common sense says something different
Last edited:
I am not gas qualified, so won’t comment on anything gas.
The unvented cylinder will be to regs if heated by a controlled heat source of oil or gas boiler and the 2 port valve supplied with the unvented unit to be in operation, controlled by uv stat.
A combi used with extra zone, or solely a zone for unvented or vented cylinder hot water I would have thought was fine and to MIS.
The space heating main body part of a combi boiler is just the same as a heat only system boiler anyhow, - isn’t it?
But sure it only takes a phone call or email to the boiler manufacturer to confirm.
I know combi boilers are installed on homes where there is some sort of hot water cylinder (vented or not) so to give option of mains pressure hot water at some outlets, or to provide instant hot water at a supply close to where the gas boiler is sited, - like a kitchen tap.
The unvented cylinder will be to regs if heated by a controlled heat source of oil or gas boiler and the 2 port valve supplied with the unvented unit to be in operation, controlled by uv stat.
A combi used with extra zone, or solely a zone for unvented or vented cylinder hot water I would have thought was fine and to MIS.
The space heating main body part of a combi boiler is just the same as a heat only system boiler anyhow, - isn’t it?
But sure it only takes a phone call or email to the boiler manufacturer to confirm.
I know combi boilers are installed on homes where there is some sort of hot water cylinder (vented or not) so to give option of mains pressure hot water at some outlets, or to provide instant hot water at a supply close to where the gas boiler is sited, - like a kitchen tap.
W
Welder
Wonder if they wore a wool shirt too...😱 Who the hell puts that rubbish on. Especially in a cold space like a basement...
W
Welder
It's about appropriateness. If that space get s down around freezing then it needs better protection.
If however it's to protect against rodents, then that works brilliantly as they don't like the fibrous nature of it and leave it alone... Instead they use the polyplumb elbows to sharpen their teeth 😀
If however it's to protect against rodents, then that works brilliantly as they don't like the fibrous nature of it and leave it alone... Instead they use the polyplumb elbows to sharpen their teeth 😀
Unfortunately not, as the pipes from the cylinder are all under the panel that has been fixed back to the cupboard.
The location of the boiler is within the kitchen.
I believe there is a 3 port valve, 2 of the ports are for underfloor heating within the kitchen/diner area.
Never gets below around 15 degrees
I am surprised if MIs state just 28 minutes for that cylinder reheat.??? I would have thought it is much more.
The hot water outlet on unvented cylinders I prefer to drop the pipe before ever raising the pipe to a higher level. Just raising a hot outlet will mean some of the stored heat from the cylinder will keep heating the water in the raised pipe, therefore wasting energy.
The hot water outlet on unvented cylinders I prefer to drop the pipe before ever raising the pipe to a higher level. Just raising a hot outlet will mean some of the stored heat from the cylinder will keep heating the water in the raised pipe, therefore wasting energy.
20kw going into the coil will re heat in around 30 mins
I am going to check the MIs on Telfords.
I thought they claimed it to be much longer.
That's the direct on have a look at the indirect spec
Size of boiler ?
30kw WB gas boiler. It is my partners house, so something I am aware of. Pipework all mine, except the gas, so no bother there.
I need to investigate it more.
Yes, I got same on searching. 35min from cold to 60 degrees
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