steveoelliott Posted Tuesday at 17:27 Share Posted Tuesday at 17:27 I currently have a Megaflo system with the built in air gap. I've been offered a replacement or the alternative of a 36KW combi, controls and flue. The later is worth a significant sum of money even if I opt to replace the cylinder off my own back and then sell the boiler etc. The question is, what cylinder should I purchase. I hear a lot of folks slating the Heatre Sadia megaflo and it's systemic issues with the air gap breaking down etc. I've been told that Gledhill are better. Any thoughts? Link to comment Share on other sites More sharing options...
Iceverge Posted Tuesday at 17:36 Share Posted Tuesday at 17:36 Why can't you keep the megaflow? 1 Link to comment Share on other sites More sharing options...
ProDave Posted Tuesday at 17:47 Share Posted Tuesday at 17:47 Who is offering you this combi replacement and why? Many of us here are happy with Telford stainless unvented cylinders. 2 Link to comment Share on other sites More sharing options...
jayc89 Posted Tuesday at 18:43 Share Posted Tuesday at 18:43 I have a UK Cylinder and it's done the job fine. Have you posted about this somewhere else too, maybe a Facebook group? Sure I've read something similar recently, but I could also be going senile... 1 Link to comment Share on other sites More sharing options...
steveoelliott Posted Tuesday at 19:18 Author Share Posted Tuesday at 19:18 1 hour ago, ProDave said: Who is offering you this combi replacement and why? Many of us here are happy with Telford stainless unvented cylinders. Baxi, current one baffle broken down and loud noises coming from cylinder. 34 minutes ago, jayc89 said: I have a UK Cylinder and it's done the job fine. Have you posted about this somewhere else too, maybe a Facebook group? Sure I've read something similar recently, but I could also be going senile... Yes on a DIY group but not exactly the same question, rather about whether a Combi would be a suitable replacement. 1 Link to comment Share on other sites More sharing options...
steveoelliott Posted Tuesday at 19:19 Author Share Posted Tuesday at 19:19 1 hour ago, Iceverge said: Why can't you keep the megaflow? Current one is defective. Link to comment Share on other sites More sharing options...
JohnMo Posted Tuesday at 19:45 Share Posted Tuesday at 19:45 Just get one with a big coil, external expansion. I have an Ideal no issues. 1 Link to comment Share on other sites More sharing options...
ProDave Posted Tuesday at 20:49 Share Posted Tuesday at 20:49 1 hour ago, steveoelliott said: rather about whether a Combi would be a suitable replacement. I would NOT trade a UVC for a combi. If you have a defective UVC change it for a new, better make of UVC. Who is offering this combi and why? 1 Link to comment Share on other sites More sharing options...
Nickfromwales Posted Tuesday at 20:51 Share Posted Tuesday at 20:51 1 hour ago, steveoelliott said: Current one is defective. Can you elaborate? Link to comment Share on other sites More sharing options...
Nickfromwales Posted Tuesday at 20:51 Share Posted Tuesday at 20:51 2 minutes ago, ProDave said: I would NOT trade a UVC for a combi. +1 1 Link to comment Share on other sites More sharing options...
steveoelliott Posted Tuesday at 21:38 Author Share Posted Tuesday at 21:38 46 minutes ago, Nickfromwales said: Can you elaborate? Baffle broken down and very loud noise deduced to be internal to vessel. Now not going for Combi but considered it for a while. Link to comment Share on other sites More sharing options...
John Carroll Posted Tuesday at 21:51 Share Posted Tuesday at 21:51 (edited) If Space not a problem, install one (UVC) with a external EV, if it is a problem install a OSO which does have a internal bubble but no daft baffle, you can always remove the dip tube and install a EV later. Edited Tuesday at 21:56 by John Carroll Link to comment Share on other sites More sharing options...
ProDave Posted Tuesday at 22:16 Share Posted Tuesday at 22:16 37 minutes ago, steveoelliott said: Baffle broken down and very loud noise deduced to be internal to vessel. Now not going for Combi but considered it for a while. Don't come back complaining about the quirks and limitations of hot water from a Combi Vs an UVC. You were warned. Link to comment Share on other sites More sharing options...
steveoelliott Posted Wednesday at 11:32 Author Share Posted Wednesday at 11:32 13 hours ago, ProDave said: Don't come back complaining about the quirks and limitations of hot water from a Combi Vs an UVC. You were warned. Understood and this advice has been resounding which has changed my mind. I intend to stick with a UVC. Link to comment Share on other sites More sharing options...
Nickfromwales Posted Wednesday at 12:22 Share Posted Wednesday at 12:22 14 hours ago, ProDave said: Don't come back complaining about the quirks and limitations of hot water from a Combi Vs an UVC. You were warned. 14 hours ago, steveoelliott said: Baffle broken down and very loud noise deduced to be internal to vessel. Now not going for Combi but considered it for a while. Erm? “Now not going for combi” lol Link to comment Share on other sites More sharing options...
Nickfromwales Posted Wednesday at 12:23 Share Posted Wednesday at 12:23 Email Trevor from Cylinders2go and mention my username and the forum for a trade price on a Telford cylinder 3 Link to comment Share on other sites More sharing options...
steveoelliott Posted Wednesday at 21:19 Author Share Posted Wednesday at 21:19 8 hours ago, Nickfromwales said: Email Trevor from Cylinders2go and mention my username and the forum for a trade price on a Telford cylinder Thanks. My plumber has suggested Gledhill. Not sure of the difference. Appreciate you sharing that! Link to comment Share on other sites More sharing options...
JohnMo Posted Wednesday at 21:33 Share Posted Wednesday at 21:33 12 minutes ago, steveoelliott said: Gledhill They make cylinders for Ideal (seem exactly the same spec) but ideal are several hundreds cheaper. 1 Link to comment Share on other sites More sharing options...
bmj1 Posted Wednesday at 22:43 Share Posted Wednesday at 22:43 I've got a 500L Telford Tempest cylinder. Seems to do the job. Link to comment Share on other sites More sharing options...
John Carroll Posted Thursday at 07:32 Share Posted Thursday at 07:32 On 07/01/2025 at 17:27, steveoelliott said: I currently have a Megaflo system with the built in air gap. I've been offered a replacement or the alternative of a 36KW combi, controls and flue. The later is worth a significant sum of money even if I opt to replace the cylinder off my own back and then sell the boiler etc. The question is, what cylinder should I purchase. I hear a lot of folks slating the Heatre Sadia megaflo and it's systemic issues with the air gap breaking down etc. I've been told that Gledhill are better. Any thoughts? I've seen a good few posts (re Gledhill LITE)) on various sites re noisy operation, in some, the cylinder was replaced, one batch were noisy apparently because the insulation hadn't been given enough time to cure properly on manufacture. Link to comment Share on other sites More sharing options...
Nickfromwales Posted Thursday at 10:10 Share Posted Thursday at 10:10 2 hours ago, John Carroll said: I've seen a good few posts (re Gledhill LITE)) on various sites re noisy operation, in some, the cylinder was replaced, one batch were noisy apparently because the insulation hadn't been given enough time to cure properly on manufacture. Sometimes if something is several hundreds cheaper than its equivalent rival, one has to ask how it is possible (when the nearest cheaper alternative is a market leading, reputable quality item anyways). I need quality and reliability without question, so I stick to what I’ve been installing for 25+ years eg Telford. Matters not one jot to me who uses what btw, just my experiences and advice, but I’ve been doing this for 30+ years and have kissed many frogs on the way… 1 Link to comment Share on other sites More sharing options...
John Carroll Posted Thursday at 13:29 Share Posted Thursday at 13:29 16 hours ago, steveoelliott said: Thanks. My plumber has suggested Gledhill. Not sure of the difference. Appreciate you sharing that! Didn't Baxi? say they would replace the Megaflo FOC?. Link to comment Share on other sites More sharing options...
steveoelliott Posted Thursday at 17:43 Author Share Posted Thursday at 17:43 (edited) 4 hours ago, John Carroll said: Didn't Baxi? say they would replace the Megaflo FOC?. They did but I don't want another Megaflo with a floating baffle that will only break down again in time. They offered a Combi, with Flue and Controls which I plan to sell to fund the cylinder swap. They did but I don't want another Megaflo with a floating baffle that will only break down again in time. They offered a Combi, with Flue and Controls which I plan to sell to fund the cylinder swap. Edited Thursday at 17:44 by steveoelliott Link to comment Share on other sites More sharing options...
steveoelliott Posted Thursday at 17:50 Author Share Posted Thursday at 17:50 10 hours ago, John Carroll said: I've seen a good few posts (re Gledhill LITE)) on various sites re noisy operation, in some, the cylinder was replaced, one batch were noisy apparently because the insulation hadn't been given enough time to cure properly on manufacture. If you can recall where, please let me know. Link to comment Share on other sites More sharing options...
JohnMo Posted Thursday at 17:58 Share Posted Thursday at 17:58 8 minutes ago, steveoelliott said: They did but I don't want another Megaflo with a floating baffle that will only break down again in time. They offered a Combi, with Flue and Controls which I plan to sell to fund the cylinder swap. Sorry - that just sounds like a load of work. They will not just give you a combi, they will give it to plumber to install. Even removing new, but now a second hand boiler isn't worth much. You will pay the plumber more than you will get for it. Just take the UVC they offer and move on with your life. Link to comment Share on other sites More sharing options...
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