Tin Soldier Posted January 14, 2019 Share Posted January 14, 2019 Apologies for asking another layout question- theres lots on here but I'm not sure mine will work over distances involved The situation at the moment is that I have self built a large single storey extension (with 4m high ceilings in living space and a loft) (135m2) attached to an old 135m2 farmhouse. within the old farmhouse, on the ground floor I have a 500 lt pressurised/sealed thermal store, complete with appropriately sized expansion vessel. This is powered by a 30kw oil boiler and heats the house through conventional radiators. In the extension I have an underfloor heating manifold connected to the thermal store which provides ufh throughout. I have a new boiler stove- an Arada Stratford 25HE Ecoboiler Wood Burning Multi Fuel Boiler Stove, which requires an open vented system, and as such I was thinking of a load valve or loadunit/plate exchanger etc. I am yet to purchase anything that would go between woodburner and thermal store I have plumbed in and insulated 28mm flow and return pipes from the thermal store to the woodburner, which is roughly 20m away on the same level, but the pipes route up and through the ceilings. I have plumbed in an overflow pipe from loft above thermal store down and out through wall I have access to mains cold water in loft above woodburner I would have ample room in the loft above the woodburner to install any equipment I would appreciate advice on whether a laddomatt type install would work (picture attached) also would a load unit/load vale be able to be placed in loft 4m above WBS - level with plate heat exchanger 4 m or does it have to be level with WBS The stove outputs 22.5kw to water - I've not bought, nor sized heatsink radiator, but I've plenty room to put multiple rads I was planning a pipestat or flue pipe stat to kick off the pump in load unit please ignore the fact both ports are linked on back of WBS that's just from a graphic I stole Link to comment Share on other sites More sharing options...
Miller3857 Posted January 14, 2019 Share Posted January 14, 2019 I'm in the process of installing something very similar, have you had a look at 'Heat Genie' its manufactured by Systemlink in Ireland. It's an all in one system that will link your stove into the thermal store keeping the stove water separate from the thermal store and also provides stove overheat protection. I'm just about to install one. Link to comment Share on other sites More sharing options...
Tin Soldier Posted January 14, 2019 Author Share Posted January 14, 2019 HI Miller Where did you source the heat genie from, and could I ask what the cost was? I have heard of it, but they told me they don't sell direct Link to comment Share on other sites More sharing options...
Miller3857 Posted January 14, 2019 Share Posted January 14, 2019 I bought it direct from them, they are also very good at providing technical advice/back up. Link to comment Share on other sites More sharing options...
Tin Soldier Posted January 14, 2019 Author Share Posted January 14, 2019 bought direct from Ireland? Link to comment Share on other sites More sharing options...
Miller3857 Posted January 14, 2019 Share Posted January 14, 2019 Yes, they have a UK telephone number +44 (0) 1244 457 818, also try heatgenie.co.uk Link to comment Share on other sites More sharing options...
bassanclan Posted January 14, 2019 Share Posted January 14, 2019 You could also consider the H2 panel. If you ring up you speak to the inventor and designer of the panel and he makes different models for whatever your situation is. The issue you are going to have is the thermocycling and dissapation of heat if there was a power cut Link to comment Share on other sites More sharing options...
Tin Soldier Posted January 14, 2019 Author Share Posted January 14, 2019 well my issue with the panels, all in one solutions is they seemed to be priced to try and take the hassle away the heat Genie comes in at over £700 + some extraneous items, as does the nrg link from ireland the laddomat set up above can be achieved for circa £500, but with a little hassle. I'm currently looking at how to power the pump in the event of power failure, even if just for an hour to allow fire to die down. Link to comment Share on other sites More sharing options...
bassanclan Posted January 14, 2019 Share Posted January 14, 2019 I found a place in Germany that sells laddomat equivalents at a decent price, but still around €400. I will look it up later. You could consider a quench coil to cool the system down? Link to comment Share on other sites More sharing options...
Alexphd1 Posted January 14, 2019 Share Posted January 14, 2019 (edited) We bought all (not flue) our biomass stuff inc boiler from https://kotly.com.pl/kategoria-laddomaty-217.html?l=pl If the power supply fails to the laddomant it still allows a natural thermosiphon circuit which will work with the heat dump usually a permantlt open radiator. Dont forget air points in that system! Edited January 14, 2019 by Alexphd1 Link to comment Share on other sites More sharing options...
Tin Soldier Posted January 14, 2019 Author Share Posted January 14, 2019 Thanks Alex good link - laddomat cheaper than I have found, and a decent priced flue thermostat, would save me a bob or two depending on shipping cost Link to comment Share on other sites More sharing options...
Miller3857 Posted January 14, 2019 Share Posted January 14, 2019 The Heat Genie does all of the above, it provides overheat protection in the event of a power failure and also does away with the need for a Laddomat or equivalent. It’s not cheap but comes very neatly packaged and is easy to install. Link to comment Share on other sites More sharing options...
Tin Soldier Posted January 14, 2019 Author Share Posted January 14, 2019 I've not found them overly helpful their response was We don't sell direct so you will have to purchase the product through a Plumbing Merchant. We deal with most of the main ones all over the country. In terms of price, you are looking at €708.00 (Nett) for the 30Kw Heat Genie with 1.3 m probe or €765.00 (Nett) for the 30Kw Heat Genie with 4m probe. These prices are excluding V.A.T. and are only a guideline for you. Link to comment Share on other sites More sharing options...
Miller3857 Posted January 14, 2019 Share Posted January 14, 2019 I can only go on my dealings with them, I bought direct from them 6 weeks ago, delivered within two days. Link to comment Share on other sites More sharing options...
Alexphd1 Posted January 14, 2019 Share Posted January 14, 2019 What exactly is this heat genie, I had a look on the web site and it looks like just two plate heat exchangers, one to transfer the heat and one used as a quench coil? Is there any mixer valves etc? Link to comment Share on other sites More sharing options...
Tin Soldier Posted January 15, 2019 Author Share Posted January 15, 2019 Alex Did you install the laddomat etc yourself? Link to comment Share on other sites More sharing options...
Nickfromwales Posted January 15, 2019 Share Posted January 15, 2019 Another option Link to comment Share on other sites More sharing options...
Tin Soldier Posted January 15, 2019 Author Share Posted January 15, 2019 Hi Nick Do you have any comment on the system diagram above, I appreciate your expertise in these type matters, Link to comment Share on other sites More sharing options...
bassanclan Posted January 29, 2019 Share Posted January 29, 2019 https://www.mbw-electronic-online.de/Thermomat-20G-65C-mit-1-Anschluss This is where i got my laddomat from, arrived in 48 hours. Link to comment Share on other sites More sharing options...
Alexphd1 Posted January 29, 2019 Share Posted January 29, 2019 (edited) Tin soldier, sorry for the delay in reply. Yes we installed the whole system ourselves. 22kw log gasification boiler. 2x 500L thermal store. Is the dunsley unit not just for mixing multiple open vented system? only came across one in the wild......gave it a wide berth as didn't know anything about it at the time. Edited January 29, 2019 by Alexphd1 Link to comment Share on other sites More sharing options...
dpmiller Posted January 19, 2020 Share Posted January 19, 2020 I didn't see it answered already but... does a Laddomat have to be at the bottom of the circuit or not? The MIs for the 21-60 say yes, the 11-30 don't comment. But the larger one is fixed-orientation whereas the 11-30 can be fitted any shape.. Link to comment Share on other sites More sharing options...
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