mike2016

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mike2016 last won the day on November 27 2016

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About mike2016

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  • About Me
    https://passiveirishhome.blogspot.com.
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    Dublin, Ireland

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  1. So I think I'll go to tender as the Architect suggests with an ASHP specification and at build time look at options. I'm not sure if this is the Architects way of tying my hands or not but will see what prices come back and if any are affordable and at build time look at budget again. At least then I'll have a builder onboard and can look at options at that point. There are passive houses that don't meet Part L in ROI, you just need the PH certification and to send in a letter! Good 'ol Ireland! Thanks everyone!
  2. The Architect has very tight reins over the BCAR/Compliance certification and no builder / tradesman I've spoken to wants to install something they've never seen before. At this end of the tender process its very hard to have that conversation even. Again, the goal is to get the house built rather than put off prospective builders with what should be simple but unorthodox requirements. Sorry to hear about AndyT, that's a shock as he was always very helpful and is one of the main reasons I'm made keen on SunAmp!
  3. I'm caught between a rock and a hard place - Part L's DEAP vs the lack of SunAmp installers in ROI who can sign off such an install to satisfy BCAR certification of compliance which I need to get the house built. Hence willis/eltron combo which any trademan can install and certify clearing the way for SunAmp or other post build. Another solution is to put in the Ecodan ASHP CO2 high temp and replace the stainless steel cylinder with a SunAmp post build somehow. I'm going to ring around one or two energy advisors today to see what they think. I'll have 2.4 kW of PV to offset CO2 intensity but I don't know DEAP well enough to model resistive loads accurately and present it back to the Architect. Hassle I don't need! Anyway, There's an answer to all this I'm sure, I'd just like what's in the final tender to be accurate and on budget as there is enough risk next year with Brexit.... Maybe I could heat the house and hot water with candles?!
  4. Ecodan ASHP, underfloor heating, two upstairs wet rads. I doubt I'm falling foul of Part L per se, it's the DEAP calcs where I might run into trouble. Plus if they tinker with the Deap package before the build is finished I might cross that line and fail certification! Still, for me this is the best approach - cheaper, simpler, can expand later....that's if I'm allowed. So,now I know it's possible in the UK, I'll ring a few energy advisors here in Ireland for their opinion. Cheers!
  5. Possibly Ed, but should I build if there's a risk I could fail Part L compliance at the end? Our DEAP isn't updated in line with SAP, not sure how much they've diverged over the years. Peter - Great to hear it's POSSIBLE to build all electric which is a relief. I think I need an honest discussion with the Architect in the morning and see if this is regulations or DEAP issue - they claim I'll fail Part L which is a bit too vague when it'll cost me 10K + for the heating system they've recommended.
  6. Hi, I'm running into trouble trying to get a Willis Heater for underfloor and a central water heater (Siebert Eltron) approved by my Architect. They claim it won't meet Part L. I'll have 8 x PV panels and it's going to be a Passive House so my question is has anyone else had difficulty passing SAP / run foul of Parl L regs going all electric? I'm holding off on an ASHP for cost reasons plus difficulty integrating a SunAmp at build time I won't go into here. I plan to add it later! Anyway, I have a preliminary DEAP xml and when I change the heating options it doedn't thrown up any errors but maybe I'm not selecting the right options. I think the Architect is being cautious so before I go back I'd like to find out if this is possible / feasible. Thanks.
  7. Hi, I read a new article in treehugger about a test of household air quality vs kitchen exhaust in a Passive House setting. https://www.treehugger.com/kitchen-design/exhaustive-new-study-looks-kitchen-exhaust-and-household-air-quality.html The test was with Induction. Just wondering if anyone here had any thoughts? BBQ outside only? How would kitchen air spread to bedrooms - kitchens would be extracting and bedrooms would be supplying so the flow should be the other way, shouldn't it?
  8. I was speaking with a builder today about brexit. They import most of their timber through the UK. If there's a brexit crashout timber prices could go up 30% + (tariffs) and add delays. Lumber mills are currently repricing every month over here and can't keep up with the demand. This is the situation on the ground in Dublin currently. My timescale for building is after March next year at the earliest so I'm heading into the unknown - not sure if I'll be in a position to sign contracts with the builder before then as prices are likely to shift waiting for the build to start. If they move too much I'll be in trouble even with a decent contingency. Labour and material costs are already up and cowboys abound! I'll be selling my old house pre brexit which should hopefully go through ok but only after that can I book the builder, I could be left stranded if the revised builders price exceeds what I can afford. My plan is to look carefully at the tender response prices later this year and add a healthy contingency, decide what the minimum sale price of my house needs to be and if the numbers don't look favourable to absorb a significant bump, I'll have to delay or cancel the build. Another risk besides timber for the frame is with windows - bringing them in from the continent could be challenging due to delays and additional costs until alternate sea routes are available and stabilize. I might have currency on my side for UK sourced parts to offset tariffs but it's access to the European suppliers I'm more concerned about. It will either go very smoothly or could be an absolute disaster!!
  9. There must be an upper limit and where do those stresses go at that speed?! Good article here that goes into pros and cons. Maybe they've cracked it but I'd be skeptical until they publish verifiable data from a real world trial..... https://www.windpowerengineering.com/design/vertical-axis-wind-turbines/
  10. Vertical wind turbines have historically not performed well but it hasn't stopped people from trying! Be interesting to see an installed version and the actual energy it produces, in an urban environment. There's also no way to "furl" if the wind gets too high unlike modern turbines, risking structural damage. Best of luck to them though....one free with every vacuum cleaner perhaps?!
  11. mike2016

    Book recommendation

    My first was: Housebuilder's Bible 12: The UK's best-selling building guide https://www.amazon.co.uk/Housebuilders-Bible-12-best-selling-building/dp/1911346059 Gave me a good start in understanding all the aspects..... As an aside: Good Blog here: https://www.houseplanninghelp.com
  12. Hi, I just finished a test of the heating system as the Radiators have been off all Summer. I'm trying to get to the bottom of why some downstairs rads don't heat up properly. Not a new issue but it's just niggling me currently. There are two larger rads with old TRVs and two other rads without. None of these heat too well. Upstairs is fine. I took my Flir camera out and had a look. I can see 57 degrees at the inlet of each but it doesn't appear to be heating up the rad as much as it should. The first rad pics below downstairs1 has no TRV, valve fully open, the others two downstairs2 & downstairs3 are the larger rads with TRV's. I've bled all the rads, no better. Is it sludge or something? Thanks!
  13. mike2016

    Internal windows in a design?

    Yep, plan to have one looking down from the landing onto the open plan living / kitchen area with a perch/window seat. Large Velux windows in the living/kitchen vaulted ceiling will offer a perspective outside also.
  14. I was talking to MBC about this before and they suggested Celecta Screedboard 28 on the 1st floor. This is a click together system. Planning for that in my house. Also rockwool in between studs on inner walls and between posijoists. I'm planning on using Fermacell 12/15mm everywhere which also helps. I've seen videos of people using a resilient channel, basically a metal strip that you then connect two layers of plasterboard onto to dampen impact noises? My finished floor level upstairs will be +28mm deeper with the approach I'm taking but my stairs etc will be sized to accommodate. Hope this helps...
  15. mike2016

    Hi from Dublin

    Welcome - hope to build in Dublin myself next year. Look forward to hearing more details on your plans. Start a blog up on this site and keep us posted! The admins can activate one for you....