Joining the Renewable Heating Hub forums is completely free and only takes a minute. By registering you’ll be able to ask questions, join discussions, follow topics you’re interested in, bookmark useful threads and receive notifications when someone replies. Non-registered members also do not have access to our AI features. When choosing your username, please note that it cannot be changed later, so we recommend avoiding brand or product names. Before registering, please take a moment to read the Forum Rules & Terms of Use so we can keep the community helpful, respectful and informative for everyone. Thanks for joining!
Last seen: Aug 21, 2025
2 x Seplos 14.3kw 1 x 5.5kw Sunsynk inverter
to the OP, one important factor will be the size and length of the run to the manifolds from the radiators and what size the feed to manifolds are.
You can buy a Seplos kit for £500 less than the Fogstar ready made which comes with everything you need! The only bits you would need extra are the sa...
@vince31 will one 15kw battery be enough? if you really were to go down the diy route, why not assemble your own battery, using one of the many...
i think Andy at off grid garage has had issues with the Seplos, perhaps they are similar issues - might be worth watching some of his you tube videos ...
Perhaps my initial (and subsequent) reading of the response might have meant I have taken the comments in a manner unintended..... But the point re ...
@transparent I am not selling the battery its an option for them to consider. I'm sure they are adult enough to make their own judgement and enqui...
Check out Fogstar UK prices. Their own 'designed' battery is a really good option and works with most inverter protocols We are all electric...
with a larger battery than your suggested 5kw at a lower price that you allowed for, the payback time will obviously reduce!!!! though its not just a ...
@bontwoody if the solar on his roof is 'available' for home use, with the excess being fed back to the grid for the benefit of whoever 'owns' the P...
The Givenergy AIO looks pretty good, but you could achieve the same thing at less cost if you went for a Fogstar battery and a different inverter - so...
is the issue being caused by the battery not being fully balanced and its taking time to identify the paramaters and its the battery/bms as opposed to...
- 27 Forums
- 2,811 Topics
- 66.5 K Posts
- 1,910 Online
- 7,217 Members
Join Us!
Installer Finder
Degrees of Separation
Latest Posts
-
RE: The Changing Jet Stream Could Challenge UK Air Source Heat Pumps
... And that's being generous! I'll tell you a littl...
By SusannaSaunders , 6 hours ago
-
RE: Adding data centre electricity costs to domestic energy bills?
never ceases to amaze me.. Keeping steel works going ...
By Batpred , 7 hours ago
-
RE: Electricity price predictions
great session Reminds me why some politicians can be ha...
By Batpred , 7 hours ago
-
RE: Boiler Upgrade Scheme funding reduced by circa £750 million in 2026 budget
Absolutely agree. The massive Hager CU my vaillant requ...
By Batpred , 7 hours ago
-
RE: Why don't people choose heat pumps?
With a heatpump tariff, it should be cheaper to operate...
By Batpred , 7 hours ago
-
RE: How much of your renewable and home setup would still work if the internet went down?
absolutely agree. even if many providers see that extra...
By Batpred , 7 hours ago
-
RE: Octopussy cosy 6 experience
People who have a Cosy appear generally to be happy wit...
By JamesPa , 11 hours ago
-
I thought the cr*p came first and the biofuel came afte...
By Majordennisbloodnok , 15 hours ago
-
RE: Aerotherm and weather compensation
@jamespa I replied yesterday with detailed readings whi...
By DavidB , 2 days ago
-
RE: Marvel Heating liquidation
@editor This is an important point. each winter, you...
By davidnolan22 , 3 days ago
-
RE: Solar Power Output – Let’s Compare Generation Figures
Very nice. we’ve been super soggy here, but rather m...
By Papahuhu , 3 days ago
-
RE: DIY powerflushing tutorial
Interesting! I toyed with the idea too. But I installed...
By bobflux , 4 days ago
-
RE: 15kw pump for 225m2 1990's house - over kill?
@seaviews Agree with the others on sequence: loft first...
By mk1234 , 4 days ago
-
RE: Vaillant ecoTEC Plus - Flow Temp and Set Up
Heating been on for 4 weeks now, continuous. It's 6C o...
By trebor12345 , 5 days ago
Members Online
No online members at the moment


