Adrian Walker Posted February 13, 2023 Share Posted February 13, 2023 14 minutes ago, SteamyTea said: If it was just for the MVHR, I would be tempted to buy a cheap inverter that runs of a leisure battery, which is on a trickle charger. But that is probably £200 quid in reality. That needs a charger, wiring, etc. £269 is a lot less hassle IMHO. Link to comment Share on other sites More sharing options...
SteamyTea Posted February 13, 2023 Share Posted February 13, 2023 2 minutes ago, Adrian Walker said: That needs a charger, wiring, etc. £269 is a lot less hassle IMHO. Yes. Probably not that bad a price, £1/Wh. Link to comment Share on other sites More sharing options...
Russdl Posted February 13, 2023 Author Share Posted February 13, 2023 @SteamyTea @Adrian Walker and if it takes £200 to get close to a similar setup I’m happy to spend the extra on having it all in one box. Link to comment Share on other sites More sharing options...
PeterW Posted February 13, 2023 Share Posted February 13, 2023 Why not something like this and use proper EIC cabling ..?? https://www.ebay.co.uk/itm/374066583967 Link to comment Share on other sites More sharing options...
Russdl Posted February 13, 2023 Author Share Posted February 13, 2023 @PeterW too many numbers in that. I can’t work out how long it would run the MVHR for in the event of a power cut. Also, what is ‘proper EIC cabling’? Link to comment Share on other sites More sharing options...
Kelvin Posted February 13, 2023 Share Posted February 13, 2023 5 minutes ago, Russdl said: @PeterW too many numbers in that. I can’t work out how long it would run the MVHR for in the event of a power cut. Also, what is ‘proper EIC cabling’? He meant IEC cabling. It’s the 3 pin kettle plugs that you might have for your computer equipment or hifi type equipment etc There are three models 360W, 600W, and 1200W 1 Link to comment Share on other sites More sharing options...
SteamyTea Posted February 13, 2023 Share Posted February 13, 2023 29 minutes ago, Russdl said: too many numbers in that The 600W one shows that it has 2 12V/7AH batteries. That is a total capacity of 288Wh. I tend to work on half of the stated capacity, it is safer. 1 Link to comment Share on other sites More sharing options...
Russdl Posted February 16, 2023 Author Share Posted February 16, 2023 Well, the numbers don’t quite add up (it says it will run the MVHR for 7hrs at 15W output) but perhaps it’s still calibrating? Regardless, I think it’s exactly what the Dr ordered. Very happy with the solution to our power cut problem. 1 Link to comment Share on other sites More sharing options...
SteamyTea Posted February 16, 2023 Share Posted February 16, 2023 2 minutes ago, Russdl said: Very happy with the solution to our power cut problem. Worked better than the solar powered battery backup I made yesterday. That died during the night. Hopefully it is just a dodgy cable/connection. Link to comment Share on other sites More sharing options...
joth Posted February 16, 2023 Share Posted February 16, 2023 On 12/02/2023 at 21:27, Nick Thomas said: Just as an aside, it's weird to call them passive houses when they require active ventilation. I'm sure it's not a novel observation. I mean, to be liveable they require active lighting, active cooking, active fire detectors and active security if you're into that. The "passive" is just with respect to satisfying the heating demand, and the MVHR is not technically required for that: turn off the MVHR and the passive house aspects will actually perform better. Link to comment Share on other sites More sharing options...
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