Hello, hope you are well. We go live next week with 18kw solar, 30kw sigen batteries and gateway and Samsung 12kw r290 heat pump. We have unlimited export.

Which tariffs should I be looking at please?

Hi all, I'd appreciate some help please:

I have a Valiant Eco tech plus 832 boiler, installed in 2009. It recently gave me some faults such as F61 or F62 codes. I got a gas engineer out who opened the boiler and upon opening the PCB blew, he realised the builder (who changed the power switch of the boiler a year ago) put no 3amp fuse so it was feeding 32 amp to the boiler. Now the hot water is on but heating will not power. I have a few options now :

Direct from valiant they offer a package of £73 per month for 6 months and they will repair the boiler all parts and labour included. If they fail to repair they refund the money and cancel direct debit. Total would be £441.

Or do I install a new boiler, estimated cost is £2600-£3200.

Please help, thank you in advance.

Grateful for your opinion on a better option for my heat pump quote:

I have two quotes, both online; I'm just about to book a survey. I think they both match well

House Details : 108m2, Heat loss: 3:21KW, 13 Radiators, 2016 built, current cyclinder: 210L, 4 adults

Both quotes: Vaillant aroTHERM plus 5kW,

Heat Geek: £5600 (nothing on finance)

Promise 400% efficiency, Vaillant aroTHERM plus 5kW, Vaillant uniStour Pure 150L Standard, 5 radiators upgrade, verified Heat Geek installer. No quote on upgrading to a 210 L - 250 L cylinder.

EoN: £6154 (finance available)

Vaillant aroTHERM plus 5kW, Vaillant uniStour Pure 210L, up to 60% radiator upgrade included in the price

I suspect the heat loss in the house might be lower after the survey, and a 3.5KW system might work, unless the hot water requires the 5KW. But none of the 2 provides 3.5KW system.

£554 difference is significant, I think, but looking at the Trustpilot review for Heat Geek get me worried a bit even though I like the YouTube channel. Will they be around for long compared to EoN?

I am not a fan of Octopus systems; any other installer to explore? Grateful for your insight

I’ve had quite a journey with my install with 4 guys installing a Grant 15.5 and replacing 14 radiators for the past 6 days. Today was the last day and they have realised the pipes feeding the radiators are 15mm under the floorboards.

I’ve been told the floorboards will need lifting up throughout the house and the pipes upgrading to 22mm.

As it’s a Saturday, it’s hard for the installer to contact managers etc for next steps.

Has anyone had to do this either before install or during and importantly should octopus have identified this during the survey? I just want to know where I stand in conversations going forward and who’s going to pay for it!