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MikeSharp01

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MikeSharp01 last won the day on June 13

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  • About Me
    I am a retired academic of 35 years, I have also run a couple of businesses (engineering) and had a short stint as a TV presenter - at the moment I amuse myself building a new home for my other half and I in East Kent.
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    East Kent

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  1. MikeSharp01
    Yes we will boost the MVHR but also restrict the rest of the house. I was going to experiment with flow temp and the flow sequence to see how it goes - so through the fan coil then on to the UFH so I can keep the UFH flow temperature within reaonable bounds or run the fan coils and UFH at different times. I did the calcs years ago, literally, some things have changed so I will do them again and see how it goes. It was never intended to be air conditioning just enough to keep the bedrooms below a bearable max and knock back the overheating days.
  2. MikeSharp01
    Our solution is going to be a fan coil unit in the MVHR duct to the bedrooms and only the bedrooms. Although MVHR cannot move a lot of heat about we have fitted large ducts and servo controlled dampers also limiting the fan coil to the bedrooms concentrates it, with the UFH running at the same time and the passive stack ventilation system's roof lights open I figure we will be able to keep it bearable.
  3. MikeSharp01
    We have been informed of the above event and an associated invite to members who may be in the area and wish to take part. "Save the Date – Transition Town Totnes Open Eco Homes 2025 From Friday evening, 26 September, to Sunday, 28 September 2025, eco-builders and retrofit trail-blazers across Totnes and Dartington will once again fling open their doors. Whether you’re curious about Passivhaus new builds, low-carbon retrofits, natural materials, ingenious DIY rainwater harvesting, or re-wilding your garden, this is your chance to see real-life solutions in action and quiz the people who made them happen. What’s new for 2025? • Extended hours: We’re kicking off with Friday-night visits to give you more time slots. • Fresh projects: Expect a line-up of brand-new homes and recently completed upgrades alongside perennial favourites. • Hands-on inspiration: Homeowners, architects and installers will be on hand to share tips, costs and how are things really work in practice. When: Friday 26 – Sunday 28 September 2025 Where: Homes and projects around Totnes & Dartington, South Devon Cost: Free entry (donations welcome) Full programme & map: Online from August at Transition Town Totnes (transitiontowntotnes.org) Pop the dates in your diary now and stay tuned—detailed programme, schedules and maps are coming soon. Best wishes, Robin Robin de Carteret Open Eco Homes Coordinator Transition Towns Totnes (TTT)" There is also an invitation to local members who may like to 'show off' their own eco build as part of the event. Please contact them at https://www.transitiontowntotnes.org/contact or PM @MikeSharp01me as I have a little more information.
  4. MikeSharp01
    Plus the standing charges naturally.
  5. MikeSharp01
    Is that via the UFH only then?
  6. MikeSharp01
    We are trying to do as much as we can ourselves. So far the only external trades have been: Slating the roof - we built the structure from the inside, I have no head for heights. Fitting the windows - the VAT on the windows, which we could have got back, was equal to the fitting so the obvious thing to do to say nothing of the de-risking arising from getting them to measure and fit. MCS sign off of the PV install - although I could go and get qualified it seemed like an unreasonable use of my time and would have been very expensive. We will need: Floor screeding before we put the wooden floor down. An umbrella approach to our ASHP and DHW system to get the grant. Drywalling of the plasterboard we are fitting. We might: Get the external cladding fixed professionally. this approach does take time....
  7. MikeSharp01
    Yep we agreed it prior to contract for both the architect and SE.
  8. MikeSharp01
    They saw you coming, wire is wire and although I agree nor all wires are created equal they are more equal than a. The average ear can tell any difference and b. The fidelity of the cheap speakers, well cheap by comparison to the £1000 wires.
  9. MikeSharp01
    Yes but what about the households where there is neither a gas supply or a heatpump. EG here we are on LPG I doubt that is on a central dB. To be fair we are on a 1200l tank but other neighbours are on bottles. Overall I like the idea of not paying the green levies if you have invested in a heat pump and have disconnected the gas. An alternative might be to move all the green levies for domestic consumers onto gas but although his has been discussed the inherent unfairness in this approach might make it challenging to implement. The essential problem is that almost anyone can have a gas boiler installed almost no matter what sort of dwelling they are in, assuming mains gas is in the street and there are many places that cannot have a heat pump.
  10. MikeSharp01
    Are they grout stains? In which case might be worth getting a small bottle of concrete acid - but TRY IT ON A BIT OF SCRAP LIMESTONE BEFORE GOING FOR IT. LIMESTONE is remarkably reactive. Screwfix do something called eradicrete which might do it.
  11. MikeSharp01
    Fill and pressurise, but don't over do it, the UFH pipework to prevent it being crushed maybe.
  12. MikeSharp01
    Not sure but does the plastic nut not unscrew on the new one to offer a flat face connection that undoing the nut on the old one will reveal thus allowing a direct connection. Old nut onto thread revealed by unscrewing the new nut. There is probably a rubber washer in there somewhere as well so use the new one.
  13. MikeSharp01
    Now that's my kind of electricity bill. We have not decided to invest in a battery yet but probably will once the house if finished so we can use agile octopus, the PV, the battery and the ASHP to optimise everything. Do you have PV diversion to the DHW, I dimly recall that you do but I may have that confused ?
  14. MikeSharp01
    We turned on our system in April (11th) since when I have become what the other half calls a Solar bore. 6.8kW export limited to 6kW, - MCS accredited and here is how it is going: almost 1MWh exported in May. Agree the house is not finished yet but its fun to see it paying the electricity bill across this place and that. Octopus have taken us off monthly DD and we will now only get a bill when we owe them money!
  15. MikeSharp01
    No idea how to attract residents - have you appointed an agent and have you advertised on ErinaceidaeMove.
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