Renewable Energy Forum

Renewable Energy Forum

Renewable Energy Forum

  • Morning, Does anybody know what happens to a solar thermal flat panels (a pair on south facing slate roof) that have been unused for at least 12 months possibly year before also. System has been switched of due to loss of pressure. How will last years heat wave conditions have effected the panel components. Is […]
  • Is anyone interested in a two butt rain/bathwater/greywater recycling project?
  • Hi Has anyone got any experience of these. I especially need to know how noisy they are from practical experience, not from Db figures which I don't understand. Also how reliable? It will most likely be an 8KW model to run just the UFH only which is set at around 35 C. They are cheap, […]
  • Hi Can somebody tell me if a standard heat source pump installation uses a pressurized hot water tank? Or will the pressure for the hot water be the same as with my oil boiler and water storage tank (gravity-fed)?
  • Calling all plumbing and heating engineers. We are doubling our heatpump installation team across the UK and need plumbers and heating engineers to help decarbonise the UK. You can apply directly on the Octopus website, or you can contact me directly.
  • Hi. Hopefully someone can point me in the right direction. Bit general. We have solar boosting our hot water using iboost. My question, the current immersion element hasn’t been changed for 14 years. Should I upgrade/change it to increase efficiency? Current I haven’t seen any degradation in use. Thanks
  • Hello My solar thermal system appears to be leaking fluid (pics attached). Could anyone give me an indication of what the issue is likely to be and the potential cost to rectify? The system was installed in May 2021 and has a flat plate panel on the roof. It works very well generally and between […]
  • Hi, Solar thermal not so big these days but a couple of Q for anyone who still works in it. Background. I'm an Electrician not a plumber.. I've been maintaining my otherwise excellent solar thermal (Original install MCS by Others), for the last ~ 18 years, over which time I've needed to clean and flush […]
  • Heat pumps are starting to look like a conspiracy against the public British Gas has just thrown a large spanner into a policy that seems increasingly unworkable, costly and embarrassing for the Government www.telegraph.co.uk I realise not many have a sub to Telegraph (neither do I) but this is the article in full. As for […]
  • In my new high efficiency house, I will have UFH with an Air to Water (A2W). Heat pump Monobloc, but for extra cooling on hot days I think extra air cooling with FCUs is needed: Should I use a secondary Air (to coolant) to Air system, or stick with just the Air to Water system […]
  • Hello, So I want to add a solar thermal system to my existing Worcester bosch greenstar but don't want to lose the functional benefits of the combi boiler. I'm proposing to install the solar collector on the side of the house in a position that will enable gravity flow to a 200litre tank just above […]
  • Hello All, newbie here. I am building a new home on a spacious plot and considering a ground source heat pump instead of air source. I understand trenches need to be 1.2m deep, 1m wide, and 5m apart. But how level does the overall site have to be? My site is on the side of […]
  • I'm planning to get an air source heat pump (ASHP) installed and I'm considering my options about the location of the water cylinder as I live in a small house and space is a premium. I was thinking about building a small insulated shed about 20 to 25 metres away from the house to put […]
  • We are installing solar power irrigation systems for smallholding farmers in Rural Ghana, We have 12V DC 0.18kW (max 20A) pumps, there only power source will be a voltage varying from 15-20V coming from solar panels. The boreholes are narrow, therefore is not much room for a float switch, The max flow is 20 Litres […]
  • We are building a new 2 bed bungalow and looking at Heating / Hot water options. Although Gas is available we are keen to not have it connected but we will be having a large solar system installed as we have a long South facing roof. Our house that we are moving from has Air […]
  • Hey all, need to find a replacement control unit for my air/water heat pump. Does anyone have have any links that I can try? Thanks for any help
  • Nibe ASHP alarm code 005 low pressure warning, anyone know the cause?
  • Hi, I have a question about my s plan heating. I have a Worcester 35cdi erp boiler connected to 2 heating loops and an unvented indirect cylinder via 3 switch values. If I have the radiator heating on and water heating on the system doesn’t close the heating or water switch values. So doesn’t appear […]
  • Hi all Are there any Windhager Biowin2 experts who can help me to understand what this means? I’m fairly sure mine doesn’t have such a mixing valve and not sure what or why one is required. I’d like to understand before trying to find someone to install what the original installers omitted 8 years ago. […]
  • Hello all, I should start off by stating that I'm not in the industry – I'm just a DIYer with a "what-if" idea. Hybrid systems and solar diverters are nothing new, but as far as I can see the current hybrid systems all require a change of boiler and I'm going to propose a system […]

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