Unvented tank install

Post new thread

Discuss Unvented tank install in the Plumbing Jobs | The Job-board area at PlumbersForums.net

Status
Not open for further replies.
M

mjam

Messages
22
Hi,

I’ve recently had a new central heating system installed which I’m happy with. The only concern I have is that the unvented tank has been installed sitting on a pallet.

The plumber told me he did this because it needed to be installed onto a flat surface. The surface wasn’t flat because he had removed a brick platform the old boiler stood on to make space for the tank

Here is a link to a picture. Should I be concerned?
8 E29 DEEE 3819 40 EA BB69 F05 BDC4 D8074
 
Aslong as it can take the weight it should be fine
 
Did the Chuckle Brothers come up with that Idea?

Non reuseable Pallets are usually made of the lowest grade timber.
 
In a word yes , should be stood on some ply of roughy 25/30 mm at least that is what I would do .

Is there anything else under the excuse of a pallet between the two end battons ?
 
Got any more pictures of the full install. Looking for combi valve on cold water feed.
D2 not too regs either.
That pallet wants getting shot of.
 
Plumber should have made a decent base made of plywood with perhaps a few pieces of 4x2" timber below, all screwed together.
If the floor is all solid I would consider bedding a paving slab level in sand and cement and then timber on top.
 
SimonG said:
Got any more pictures of the full install. Looking for combi valve on cold water feed.
D2 not too regs either.
That pallet wants getting shot of.
Click to expand...

Between the boiler (left) and the two pipes
 
townfanjon said:
In a word yes , should be stood on some ply of roughy 25/30 mm at least that is what I would do .

Is there anything else under the excuse of a pallet between the two end battons ?
Click to expand...


One side is on the tiled floor. The other side looks like it has another bit of wood under it. Pictures:
Imgur: The most awesome images on the Internet
 
Best said:
News to me, but no still didn't need to be bent so close to tundish as no reason for it
Click to expand...

:D because it goes into a pump just seen the other pics lol
 
Op defo not right
 
mjam said:
One side is on the tiled floor. The other side looks like it has another bit of wood under it. Pictures:
Imgur: The most awesome images on the Internet
Click to expand...

Sorry mate its pretty amateurish, I darnt look at the other things the guys are commenting on
 
Like to see the details on the pump. Looks like a condensate pump. Doesn't look rated for 95 degree water.
 
defo wrong pump / not designed for it
 
Condense pump & discharge pipe probably melt as not rated for high temperature water.
 
Who suggested the install of this to be suitable for a basement without drainage?
 
Vee said:
Who suggested the install of this to be suitable for a basement without drainage?
Click to expand...
The plumber/engineer suggested it. We had a combi that we wanted replacing and he said it was the best option given the number of bathrooms
 
mjam said:
What sort of pump should it have? I can’t have my basement room filled with boiling hot water.
Click to expand...

The last one I did in a basement had a galvanised tank with a submersible pump rated for 95 degree water.
 
Pump house unvented pump
 
Thanks for the advice. The other pipe going into the pump is the combined combined prv and condensate pipe from the viessmann system boiler is this correct?
 
Yes that is correct and the pump can't even handle that
 
Yep
 
The installer is right to suggest the Combi was unsuitable in your scenario although the location of the cylinder remains a bad choice.
 
mjam said:
Hi,

I’ve recently had a new central heating system installed which I’m happy with. The only concern I have is that the unvented tank has been installed sitting on a pallet.

The plumber told me he did this because it needed to be installed onto a flat surface. The surface wasn’t flat because he had removed a brick platform the old boiler stood on to make space for the tank

Here is a link to a picture. Should I be concerned?
8 E29 DEEE 3819 40 EA BB69 F05 BDC4 D8074
Click to expand...
mjam said:
Hi,

I’ve recently had a new central heating system installed which I’m happy with. The only concern I have is that the unvented tank has been installed sitting on a pallet.

The plumber told me he did this because it needed to be installed onto a flat surface. The surface wasn’t flat because he had removed a brick platform the old boiler stood on to make space for the tank

Here is a link to a picture. Should I be concerned?
8 E29 DEEE 3819 40 EA BB69 F05 BDC4 D8074
Click to expand...
 
mjam said:
Hi,

I’ve recently had a new central heating system installed which I’m happy with. The only concern I have is that the unvented tank has been installed sitting on a pallet.

The plumber told me he did this because it needed to be installed onto a flat surface. The surface wasn’t flat because he had removed a brick platform the old boiler stood on to make space for the tank

Here is a link to a picture. Should I be concerned?
8 E29 DEEE 3819 40 EA BB69 F05 BDC4 D8074
Click to expand...
mjam said:
Hi,

I’ve recently had a new central heating system installed which I’m happy with. The only concern I have is that the unvented tank has been installed sitting on a pallet.

The plumber told me he did this because it needed to be installed onto a flat surface. The surface wasn’t flat because he had removed a brick platform the old boiler stood on to make space for the tank

Here is a link to a picture. Should I be concerned?
8 E29 DEEE 3819 40 EA BB69 F05 BDC4 D8074[/QUOT
Click to expand...
 
Because it can be a mare to pipe up the d2 if there's no drainage.
 
  • Agree
Reactions: Vee
Make sure installer has a G3 unvented qualification. The pump is definitely not the spec required for this job, asking for a flood. Pallet arguably not the best. From pics discharge looks okay until it reaches pump of course. Can’t really see the cold feed pipe work to comment. We usually use a combo valve which has all the safety devises, pressure reducer/check valve expansion vessel, pressure relief port as part of the assembly.
 
Hi,

Thanks to you all for pointing out the problems. I confronted the installer about the issues and he promised to resolve them. He decided the best way to fix it was to get a different tank with a separate pressure vessel and put the new tank on a proper platform so it could vent through the wall (the basement is only part underground). Now only the boiler goes into a (New) pump which he says Viessmann have told him is suitable for the combined PVT and condensation output of this boiler. I've taken some pictures of the new set up. Could you have a look and see if I should have any concerns?
He's plumbed the combined PVT and condensate when it goes outside into a pipe that seems to terminate into the soil at the side of the house (to my knowledge there is no drain there). Is this correct?
Also is the pressure vessel serviceable where he has put it. I thought they needed to be serviced annually?
The PVT output from the cylinder terminates in that tiny cage he has installed. For some reason he has put a second pipe there as well which is not connected to anything.


New unvented tank
 
mjam said:
Hi,

Thanks to you all for pointing out the problems. I confronted the installer about the issues and he promised to resolve them. He decided the best way to fix it was to get a different tank with a separate pressure vessel and put the new tank on a proper platform so it could vent through the wall (the basement is only part underground). Now only the boiler goes into a (New) pump which he says Viessmann have told him is suitable for the combined PVT and condensation output of this boiler. I've taken some pictures of the new set up. Could you have a look and see if I should have any concerns?
He's plumbed the combined PVT and condensate when it goes outside into a pipe that seems to terminate into the soil at the side of the house (to my knowledge there is no drain there). Is this correct?
Also is the pressure vessel serviceable where he has put it. I thought they needed to be serviced annually?
The PVT output from the cylinder terminates in that tiny cage he has installed. For some reason he has put a second pipe there as well which is not connected to anything.


New unvented tank
Click to expand...
The tee directly below the temperature/pressure relief off the cylinder before the tundish. Where does that go?? Multifunctional valve?
 
Still wrong, the blue valve pipe goes up hill not acceptable
 
mjam said:
Thanks, so he's done it wrong again. What problem does this being incorrect cause?
Click to expand...

It won't drain it's more of a hazard than before sorry to say

Any chance of a pic of the whole cylinder ?
 
I wouldnt necessarily agree with shaun saying the pressure relief is a hazard but its certainly not to regs as it goes uphill alot!
 
scott_d said:
Flue needs a guard
Click to expand...
Thanks, What sort of Guard should it have?

What about the black pipe coming out of the wall and going into the soil. That has the combined boiler PRV and condensate that is being pumped out going into it. There is no drain their so I can only assume he is trying to soak it away. Is that correct?
 
New posts
Status
Not open for further replies.

Reply to Unvented tank install in the Plumbing Jobs | The Job-board area at PlumbersForums.net

Newest Plumbing Threads

Back
Top
AdBlock Detected

We get it, advertisements are annoying!

Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. For the best site experience please disable your AdBlocker.

I've Disabled AdBlock