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Post by Deleted on May 9, 2017 10:15:52 GMT
Thought I'd post here before heading over to a DIY forum and getting bamboozled with too much advice. Need to buy a new hot water cylinder but not too sure of what I should be searching for. I believe I'm looking for an indirect vented cylinder that is suitable for a gravity fed heat source. Current set up; heat provided by an old oil fed AGA via pipework from bottom and close to top of cylinder, water supplied from water tank to bottom of cylinder, top pipe from cylinder goes to hot water and an outlet that 'overflows' back to water tank. No central heating or immersion heater. Water tank is in loft and consists of 3 connected tanks probably equating to 500 litres. Ideally looking for a simple replacement but some/most of the indirect vented cylinders I have looked at don't appear suitable for a gravity fed system. Any help with what I should be searching for or recommendations for a replacement gratefully received - approx 120 litres. Cautionary tale! When replacing a water cylinder due to the fact that is has become corroded and is beginning to leak, do isolate it from the water supply but whilst you are sitting there contemplating how you are going to drain the actual cylinder don't decide to give the pipe at the bottom of the cylinder a wiggle just to work out how bad the leak is. Yes 120 litres of water when not contained does mack a really really big mess. If you happen to make this mistake then I thoroughly recommend shouting Fuck a lot whilst waving your arms around because nothing else is going to stop gravity! OS. I'll look for my wallet later!  |
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Post by peterboat on May 9, 2017 11:18:09 GMT
I bought a brand new one of ebay in stainless steel for 50 quid I am using it for the broads cruiser it is indirect and will have a Rayburn heating it
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Post by Deleted on May 9, 2017 11:20:47 GMT
I suggest you post a photo if you still have the cylinder, showing the connections. If possible identify what the connections are. That is the inlet, outlet and any coils. Sorry to hear of your deluge, I hope it did not cause too much damage. Was it cold at the time?  |
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Post by thebfg on May 9, 2017 11:30:14 GMT
Cautionary tale! When replacing a water cylinder due to the fact that is has become corroded and is beginning to leak, do isolate it from the water supply but whilst you are sitting there contemplating how you are going to drain the actual cylinder don't decide to give the pipe at the bottom of the cylinder a wiggle just to work out how bad the leak is. Yes 120 litres of water when not contained does mack a really really big mess. If you happen to make this mistake then I thoroughly recommend shouting Fuck a lot whilst waving your arms around because nothing else is going to stop gravity! OS. I'll look for my wallet later! |
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Post by Deleted on May 9, 2017 12:09:03 GMT
I suggest you post a photo if you still have the cylinder, showing the connections. If possible identify what the connections are. That is the inlet, outlet and any coils. Sorry to hear of your deluge, I hope it did not cause too much damage. Was it cold at the time? How do I find out whether there are any coils in the cylinder? - I have a feeling that this might be the difference between cylinders suitable for pumped systems and gravity fed ones although I'm only guessing. No real damage caused although haven't tried switching eleccy back on yet. |
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Post by Deleted on May 9, 2017 12:16:24 GMT
Well, if it's disconnected, look in each hole - you might see a coil or see that the connection continues as a pipe inside the cylinder. If you stick a hose in, water will come out somewhere else pretty quickly if you are on a coil, if not the whole cylinder will be filling slowly.
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Post by Deleted on May 9, 2017 12:23:10 GMT
Thanks. Will hopefully have it fully disconnected later once I've finished destroying the 'built around' cupboard that it is in.
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Post by Deleted on May 9, 2017 12:33:10 GMT
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Post by Deleted on May 9, 2017 13:31:15 GMT
No coil. Water inlet and outlet 18mm, AGA inlet and outlet 28mm. Looks like a standard indirect ventilated cylinder.
Will do a bit more research and then post on a DIY forum unless anyone else has suggestions.
Failing all that will go to a local friendly plumber for expert advice rather than MTB.
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Post by phil70 on May 9, 2017 13:48:53 GMT
Can offer nothing constructive, sorry to hear of your problem but........thank you for the chuckle at your coping strategy
Phil
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Post by Deleted on May 9, 2017 13:56:14 GMT
Failing all that will go to a local friendly plumber for expert advice rather than MTB. Sorry; couldn't resist... |
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Post by Deleted on May 9, 2017 14:11:07 GMT
Was it cold at the time? Forgot to mention this. Yes thankfully it was cold - temp of hot water gets to about 85 degrees if I forget to turn AGA down, that is how got to know about Thermostatic Valves. Being sprayed with cold water whilst holding a mains lamp was enough but it could have been worse... |
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Post by Gone on May 9, 2017 14:18:12 GMT
I just changed mine for the completely opposite reason. Hot water would not come out. We live in a very hard water area and there was over 50kg of scale which filled up about half the tank. Water could not get in, and I could not get the water out to drain it. Had to syphon it out in the end. The stop tap from the storage tank feeding the hot tank was also completely jammed with scale. What started as a half a day job become the whole weekend. Took two of us to get it out of the airing cupboard in a controlled drop to the floor.
Back to your problem - Screwfix and toolstation do sell them, and you may be able to identify yours by looking at the photos.
If money is tight, the the copper tanks have a scrap value of something like £3 per kilo.
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Post by Deleted on May 9, 2017 14:58:16 GMT
Glad to hear someone else has had similar problems. Don't think Screwfix etc do 1970 models anymore... Do you think if I leave the accumulated sludge in the bottom the scrappy will pay for the extra weight? |
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Post by naughtyfox on May 9, 2017 15:52:57 GMT
(post removed at request)
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