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If anyone is interested I have been doing some measurements. When i powered it up in "fan speed 1" for my upside down test, I was surprised how noisy it was and how much air it was pushing out. now as a simple guy, I had expected speed 1 to be the slowest. Don't be silly. Speed 1 is the fastest speed. Also the one I have appears only to have 4 speeds available. So power consumption measurements: Speed 4 = 0.2A = 49W Speed 3 = 0.5A = 122W Speed 2 = 1.1A = 269W Speed 1 = 1.7A = 416W Obviously I will be delighted if speed 4 is sufficient for trickle ventilation but I won't know that until very much later on when the house is sealed and it's all ducted up and flow rate measurements done. Another point is according the the manual SW2 should give you the ability to increase or decrease the motor power, but on my unit SW2 is not fitted, though the pcb has the pads and silk screen labeling for it. On speed 4, the slowest, it is whisper quiet.

+1 on those electri saver units. I fit them when we do uvc's with a 20a switch paralleled as a master override .

To enable BuildHub users to find things a little quicker, and in discussion with the admins, the blog has been tidied up to allow access to the links as below. Also included are the links to the useful information such as the energy usage spreadsheet to download. The current blog has also been updated so this should allow you to see the latest content as its posted. Blog Posts Part Forty Six - Over-thinking things - Part Two http://www.mayfly.eu/2017/01/part-forty-six-over-thinking-things-part-two/ Part Forty Five - Architects and consultants, what are they likely to cost and can you save money by doing some of this yourself? http://www.mayfly.eu/2017/01/part-forty-five-architects-and-consultants-what-are-they-likely-to-cost-and-can-you-save-money-by-doing-some-of-this-yourself/ Part Forty Four - Over-thinking things - Part One http://www.mayfly.eu/2016/12/part-forty-four-over-thinking-things-part-one/ Part Forty Three - Completion and getting the VAT back http://www.mayfly.eu/2016/12/part-forty-three-completion-and-getting-the-vat-back/ Part Forty Two - Water Treatment http://www.mayfly.eu/2016/07/part-forty-two-water-treatment/ Part Forty One - Hot water at last http://www.mayfly.eu/2015/11/part-forty-one-hot-water-at-last/ Part Forty - Getting into hot water - episode two http://www.mayfly.eu/2015/10/part-forty-getting-into-hot-water-episode-two/ Part Thirty Nine - Getting into hot water - episode one http://www.mayfly.eu/2015/10/part-thirty-nine-getting-into-hot-water-episode-one/ Part Thirty Eight - Heating and cooling controls http://www.mayfly.eu/2015/09/part-thirty-eight-heating-and-cooling-controls/ Part Thirty Seven - A long tale about water and life http://www.mayfly.eu/2015/08/part-thirty-seven-a-long-tale-about-water-and-life/ Part Thirty Six - Winter energy consumption for heating http://www.mayfly.eu/2014/12/part-thirty-six-winter-energy-consumption-for-heating/ Part Thirty Five - Hot water and LEDs http://www.mayfly.eu/2014/12/part-thirty-five-hot-water-and-leds/ Part Thirty Four - Things are going slowly and some hot water stuff http://www.mayfly.eu/2014/11/part-thirty-four-things-are-going-slowly-and-some-hot-water-stuff/ Part Thirty Three - System details and the bathrooms http://www.mayfly.eu/2014/09/part-thirty-three-system-details-and-the-bathrooms/ Part Thirty Two - More on MVHR and nasty smells http://www.mayfly.eu/2014/07/part-thirty-two-more-on-mvhr-and-nasty-smells/ Part Thirty One - It's slow going on your own http://www.mayfly.eu/2014/07/part-thirty-one-its-slow-going-on-your-own/ Part Thirty - MVHR details http://www.mayfly.eu/2014/04/part-thirty-mvhr-details/ Part Twenty Nine - Some details that may be of interest http://www.mayfly.eu/2014/04/part-twenty-nine-some-details-that-may-be-of-interest/ Part Twenty Eight - 90% finished so only 90% to go http://www.mayfly.eu/2014/04/part-twenty-eight-90-finished-so-only-around-90-left-to-do/ Part Twenty Seven - The need for a sense of humour http://www.mayfly.eu/2014/02/part-twenty-seven-the-need-for-a-sense-of-humour/ Part Twenty Six - The scaffolding comes down at last http://www.mayfly.eu/2014/01/part-twenty-six-the-scaffolding-comes-down-at-last/ Part Twenty Five - More larch, or "your lupins or your life...." http://www.mayfly.eu/2013/12/part-twenty-five-more-larch-or-your-lupins-or-your-life/ Part Twenty Four - Number One - The Larch http://www.mayfly.eu/2013/12/part-twenty-four-number-one-the-larch/ Part Twenty Three - Odds and ends and first fix http://www.mayfly.eu/2013/12/part-twenty-three-odds-and-ends-and-first-fix/ Part Twenty Two - Roofing and MVHR and a quick video http://www.mayfly.eu/2013/11/part-twenty-two-roofing-and-mvhr-and-a-quick-video/ Part Twenty One - Putting in the insulation http://www.mayfly.eu/2013/11/part-twenty-one-putting-in-the-insulation/ Part Twenty - The windows and doors are in - almost http://www.mayfly.eu/2013/10/part-twenty-the-windows-and-doors-are-in-almost/ Part Nineteen - Sorting out details http://www.mayfly.eu/2013/10/part-nineteen-sorting-out-details/ Part Eighteen - A House in 4 1/2 days http://www.mayfly.eu/2013/10/part-eighteen-a-house-in-4-12-days/ Part Seventeen - Day One of the build http://www.mayfly.eu/2013/10/part-seventeen-day-one-of-the-build/ Part Sixteen - Fun and games in the mud http://www.mayfly.eu/2013/10/part-sixteen-fun-and-games-in-the-mud/ Part Fifteen - The site is finally ready http://www.mayfly.eu/2013/09/part-fifteen-the-site-is-finally-ready/ Part Fourteen - Things can only get better http://www.mayfly.eu/2013/09/part-fourteen-things-can-only-get-better/ Part Thirteen - Unlucky for some http://www.mayfly.eu/2013/08/part-thirteen-unlucky-for-some/ Part Twelve - Minor disaster strikes http://www.mayfly.eu/2013/08/part-twelve-minor-disaster-strikes/ Part Eleven - Fracking - only kidding........ http://www.mayfly.eu/2013/08/part-eleven-fracking-only-kidding/ Part Ten - Out of the ground http://www.mayfly.eu/2013/08/part-ten-out-of-the-ground/ Part Nine - Bloody services http://www.mayfly.eu/2013/07/part-nine-bloody-services/ Part Eight - The Wall http://www.mayfly.eu/2013/07/part-eight-the-wall/ Part Seven - Pouring concrete http://www.mayfly.eu/2013/07/part-seven-pouring-concrete/ Part Six - There we were, digging this hole.... http://www.mayfly.eu/2013/07/part-six-there-we-were-digging-this-hole/ Part Five - Trials and tribulations http://www.mayfly.eu/2013/06/part-five-trials-and-tribulations/ Part Four - Services http://www.mayfly.eu/2013/04/part-four-services/ Part Three - The devil is in the detail - episode one http://www.mayfly.eu/2013/04/part-three-the-devil-is-in-the-detail-episode-one/ Part Two - The joy of planning http://www.mayfly.eu/2013/04/part-two-the-joy-of-planning/ Part One - In the beginning http://www.mayfly.eu/2013/04/part-one-in-the-beginning/ Introduction http://www.mayfly.eu/2013/01/intro/ Other links Energy Consumption http://www.mayfly.eu/2017/03/energy-consumption/ Domestic electrical installation earthing and circuit protection - part 2 http://www.mayfly.eu/2017/02/domestic-electrical-installation-earthing-and-circuit-protection-part-2/ Downloads from the top menu http://www.mayfly.eu/2017/02/downloads-from-the-top-menu/ Domestic electrical installation earthing and circuit protection - part 1 http://www.mayfly.eu/2017/01/domestic-electrical-installation-earthing-and-circuit-protection-part-1/

Very disappointing that they failed to respond positively. Byron needs to get a new UFH designer, as, witnessed by myself, this was far below any acceptable standard. There was better available for free . I promoted them for their supply only services, and technical support ( in-house ), but as far as their design services go ( outsourced ) the writing is unfortunately on the wall.

Our UFH pipes are clipped onto the insulation, covered with 100mm concrete slab. The main reason for us doing it this way was it saved the cost of having to lay a 70mm screed. I didn't see the point of paying to dig out the foundations a bit deeper, then pay more to fill it back in again.

Ok - the only way to damage a pipe in this way is to cause the damage during installation - PEX is good to 10 bar, UFH is 1-2 at most and to get PEX to expand more than 0.5mm needs around 4 bar. Pumps are circulation pumps not pressure pumps so there is no way for a pulse to be created unless there is a fast actuating manifold valve and even then, that would be a sub second pulse only when it closes. Whilst I respect he's been doing it a while, I would hazard a guess that the recalls are due to pipe damage on install that manifests as a leak later. If you pressurise PEX to 3 bar during a pour, it will need a significant force to deform it hence why they always suggest to pressurise as you're effectively walking on a very rigid tube. Without water in it, you stand the risk of deforming something that is inherently unstable due to its shape i.e. a thin tube. I don't know of a single supplier that would warrant their product if it hadn't been pressurised at pour - who's providing the pipe ..?

That's better It's a pity that you can find an extra half metre on pipe 4 and metre or so on pipe 5, then you could have run them vertically up the wall and only had to box in the corner of the room rather than lose 250mm for the whole length of that wall. If I were you I wouldn't have bother with that strapping but just banged a couple of noggins up between the joists and laid the pipes on those. Also note that your BInsp might has a issue with a boarded out wall which doesn't have fire stops along the top. Another advantage of boxing in and packing the box section with acoustic insulation.

You can download the software and do it yourself easier - yes it's in US measurements but it's not rocket science... loopCAD is what you need - free for 30 days

Update: Shipping examples Skybad (Aachen; site in English, Customer Services on +49 2408 704930 speak English) offered shipping for 4 WCs, 4 Basins and various taps and mixers for 139 euro (9/11/2016). Shipping costs seems to max out at 139. Shipping took three days on the last order btw (and when we discovered a faulty component they replaced it without delay). On the other hand, Magabad (Cologne) offer a collection service (for anybody wanting an excuse for a eurobreak) NB I am not advocating any one supplier over another - this post has been submitted for informational purposes only

Flattery will get you everywhere!

@readiescards, you've created some knots! Uragghh You have to plan your routes a bit like a electronic engineer lays out a circuit board. Pipes should go horizontal or vertical and you should allow for the curves. All cross overs should stick to a simple rule and be consistent otherwise you will get into the hopeless tangle that you seem to have. If you letter the top pipes left to right A-G and the bottom ones 1-5 then you've got 1-F, 2-C, 3-B, 4-G, 5-A when it would have been a lot more sensible to route 1-A, 2-B, 3-C, 4-F, 5-G. You could have cut out the 45° wedge above your diamond-cut holes in the blockwork to allow the 2 and 3 pipes to start their radii turns tighter into the wall and minimise the depth of the boxing and also packed the entire batch of five pipes into a denser 200×300 tight in the corner with some wood framing that the plasterers could have easily boxed in. Also remember that you've got to allow the pipe lengths to allow the horizontal + vertical runs which is not the same as a wiggly diagonal -- you know: old Pythagoras theorem. Still, each to his own.

I dimly remember that. In my day, my first mobile phone was still several years away and I was one of the first 1500 people in the UK to own one, engagement was like getting a bike for Easter and not being able to ride it until Christmas. There were highlights though - Saturdays spent in Heals choosing furniture (most of which we still have), dropping into Peter Jones to choose a 'dinner service' - some of which we still have, commissioning the rings - both of which we still have, evenings dancing at the Ritz, the sanctity of ones club - Malden and District Society of model engineers, booking the venue - Woolwich town hall - not so trendy then, making the bed - I mean carpentry, 'weekends maintaining our independence', 'weekends being Mr and Mrs smith'. Through all of it however I cannot recall any discussions about towel rails or the definition of a radiator. I don't know, the youth of today...

I remember this one from ebuild now. If the static pressure is good but it is the inability to supply any decent flow rate, then the accumulator is the solution I would try. It will slowly charge up when you are not drawing water, and will supply your demand (as long as it is big enough)

You just need the black and white plan at 1:200 a3 then you can draw lines on it and shade yourself. Surveyor doesn't need to do that for u

Will that still be the case when they are privatised, I wonder? Although I generally agree with privatising things that don't need to be overseen by government, I''m not convinced that things that should have government control, like building control and the Land Registry should be privately run.