Reply With QuoteIf your cold water is at main pressure I would consider if you can replace with a thermal store. I have a Megaflow but think the thermal stores make better sense now.
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Hoping to tap into the knowledge of the collective please.
Our house is heated via multi fuel stove with attached boiler which is linked to an indirect (obviously) immersion tank with an immersion heater for the summer months. About 2 years ago i noticed that the tank had a very slight leak above one of the bosses on the flow to or from the boiler. Turns out this has got slightly worse and probably needs a replacement now. The pipework is also looking "leaky" as seen in images below.
Anyway, does anybody have any knowledge or dealings with Gledhill as i believe you can specify the heights for inlets/outlets?
Do any other manufacturers offer this and are they any cheaper?
I will be doing the job myself and whilst system is drained down will probs replace the 3 way valve and possibly the pump. Is there a more reasonably priced alternative to honeywell for the diverter?
Any advice or thoughts from the images greatly received.
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If your cold water is at main pressure I would consider if you can replace with a thermal store. I have a Megaflow but think the thermal stores make better sense now.
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Thanks for the reply.
Have just had a quick read up on thermal stores and whilst they do seem a step up in suitability thay are at least 3x the cost! Can't help feeling that there would be to much re-routing of pipework etc.
Might get someone round go go through the figures though??
Think i will be pushing my abilities piping a new immersion tank in whilst reducing 28 down to 22mm and getting it all lind up as in the photo's, correctlywithout attempting a partially new system! Or am i over complicating things?
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That old 28mm could be an imperial pipe.
I had one the other week and had to get a reducer as there is a slight difference in size.
Cylinder wise you can specify heights of the unions but it will cost you more as it will be a one off.
Most come at about the same height and distance between them if your getting a cylinder the same dimensions as your existing one.
3 way valve, stuck with Honeywell. They may cost a bit more but are the best out there and if the head goes it’s the easiest to change.
Pump, grundfos have got a bit crap lately, few problems being reported with them but still a good make. One I have found that is pretty good and not to expensive is a CP25 circulating pump. Get them in plumcentre for about £80
Also if you do go something like a mega flow get someone in to do it properly, don’t try it yourself.
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Thank you for the replies and useful info so far. Think i'm gonna stick with the immersion tank for ease.
As far as they go are they much of a muchness or are the likes of Gledhill any better?
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Is it a specialised Gledhill tank at the moment or a regular indirect cylinder? If it is a standard cylinder they come in a few different but regular sizes, just measure and order same size replacement. Stainless steel is now a cheaper alternative to copper. If it isn’t a standard cylinder then I would probably go with gledhill, as the ability to have the connections where you need them is probably worth the higher price.
Do not attempt to fit an unvented cylinder... you need to be qualified... and with good reason, worth checking out what can happen if they are fitted incorrectly!
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Will not be fitting unvented. It is a standard tank at the moment with the cold feed low down on opposite side to indirect coil. Can't see any diagrams on the Gledhill site to compare ??
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Then imo, I would stick to a regular cylinder if you are confident that you can make small adjustments to the pipe work if necessary. Measure the height and width of your current cylinder and look for a comparable replacement size, the connections should be in roughly the same place. All cylinders now come pre lagged, so if your current unlagged cylinder is for example 1050 x 450 and you replace with a cylinder the same size, the actual overall size could be 1100 x 550 with the insulation... I have seen numerous cylinders with the insulation trimmed / cut away to fit a new cylinder into an existing cupboard / space, if you have plenty of room this shouldn't be a problem but may be worth keeping in mind?
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