MikeSharp01

So in this context size, or perhaps volume / form factor, is everything.

Very true the problems though seem to come from the Engineering rather that the physics so the machine is more complex, has more things that can go wrong and so costs more and therefore has a longer payback in pure £. Not sure on the embodied carbon side of the equation, or the availability of; support - ASHP's don't have much good support and reliable installers. We chose not to have one because of space.

When I think about it the CCC report just assumes we are trying to get to net zero - something we agreed to a long time ago. So all they are doing is looking at the road map and assessing our progress. We also might conjecture that switching over to renewable is sensible anyway, we will need them eventually unless Einstein was wrong, because we will run out eventually after all.

If it fires when you push it against the target woodwork then the thing is basically working. It maybe that the the depth setting is at max and this is making it hard to push down to trigger point.

So is there another owner with the land surrounded bt the red / blue portions ?

I am sure I don't know. Isn't that what the trick membranes are for in the modern era?

This whole topic is frightening - only thing that let's me sleep nights is the wufi analysis we paid for. All technical membranes high / low vapour permeable materials makes my head spin.

Great work Bob.

Yes we did blow it in ourselves and there were not any voids when we did it for 8 months, then we had heat wave and I noticed the bulges getting worse and found the voids at the top. So we added the intermediate battens - chamfered the edges to avoid damage the membrane and then refilled the voids. No problems since.

We used intello plus as it has strengthening strands for exactly that - but it didn't work as expected we had bulging much more than expected on the first pumping. We put additional supporting vertical battens under the horizontal battens that hold the plasterboard, at 300mm centers to keep it in check. (Main studs are 600mm. This bulging gets worse when it gets really warm as the plastic stretches and we got some slumping on the tall.columns. So I let it slump and them filled any gaps with more cellulose when I found the voids with an IR camera / strong torch- if you put a bright LED against the membrane you can see holes. Attached is a pick of a roof section the 300 centers.

Make a podcast and let's make it go viral - but no more than 7.5 minutes (5 minutes if like most users you speed it up when watching). Nobody watches an hours worth of Youtube / Tic Toc / anything these days.

In case you want to be depressed like me have a swift read of the summary (press release) of this here: https://www.theccc.org.uk/2024/07/18/uk-off-track-for-net-zero-say-countrys-climate-advisors/ or the full document here, executive summary will either have you head in hands or head in wine cooler: https://www.theccc.org.uk/publication/progress-in-reducing-emissions-2024-report-to-parliament/ For us, here on the progressive forum that Buidhub is, much of this won't come as a surprise but when seen in the round and at scale you get the impression that there is a lot to do and the mistakes of the past, including quite recent choices by HMG, need to be sorted and reverse. Here are few headlines needed for 2030 to get us back on track: 10% of UK homes need to be fitted with heat pumps (1% today) we have discussed this already on here. Sort planning and give me the £7500 if I can show my install meets the broad criteria - IE heats my home but only once I can show it is working. Offshore wind needs to increase by a factor of 3 times. Stop making noises that put companies off bidding for new wind farms at auction. The market share of new electric cars needs to rise to 100% by 2030. Reverse the move made by one R Sunak 18 months back even if it does put all the manufacturers into a flat spin! They make some great recommendations about those and others that need fixing. " Make electricity cheaper. Removing policy costs from electricity prices will support industrial electrification and ensure the lower running costs of heat pumps compared to fossil-fuel boilers are reflected in household bills (R2024-011). Reverse recent policy rollbacks. Remove the exemption of 20% of households from the 2035 fossil-fuel boiler installation phase-out, address the gap left by removing obligations on landlords to improve the energy efficiency of rented homes and reinstate the 2030 phase-out of new fossil-fuel car and van sales. The damage of these rollbacks can be limited by quickly reinstating these policies (R2024-016, R2024-017, R2024-029). Remove planning barriers for heat pumps, electric vehicle charge points and onshore wind (R2024-015, R2024-032 and R2024-019). Introduce a comprehensive programme for decarbonisation of public sector buildings (R2024-013). Effectively design and implement the upcoming renewable energy CfD auctions. Ensure funding and auction design for the Sixth and Seventh Allocation Rounds are appropriate to deliver at least 50 GW of offshore wind by 2030 (R2024-007). Accelerate electrification of industrial heat. Strengthen the UK Emissions Trading Scheme to ensure that its price is sufficient to incentivise decarbonisation and that support is available for a rapid transition to electric heat across much of industry (R2023-080, R2024-012). Ramp up tree planting and peatland restoration. Tree planting must be scaled up in the 2020s for abatement to be sufficient for later carbon budgets and Net Zero. There must be no more delays to addressing the barriers to delivery (R2023-192, R2023-171). Finalise business models for large-scale deployment of engineered removals. Finalise and open to the market the business models for engineered removals (R2024-006). Publish a strategy to support skills. Support workers in sectors which need to grow or transition and in communities that may be adversely impacted (R2022-128, R2023-169). Strengthen NAP3 with a vision that sets clear objectives and targets and reorganise government adaptation policy. Adaptation must become a fundamental aspect of policy making across all departments and be integrated into other national policy objectives (R2024-030).[*]" ( (Climate Change Committee, 2024 progress Report to parliament, 2024 - https://www.theccc.org.uk/publication/progress-in-reducing-emissions-2024-report-to-parliament/) Any thoughts - I think I will go and eat myself into an early grave or, alternatively, hang on for this: https://www.bbc.co.uk/news/articles/cv2gr3x3xkno#:~:text=A drug has increased the,cancers than their unmedicated peers. to work itself out and see if I have the energy to help sort it - first get a final, reliable, reasonable quote for an ASHP! PS don't tell my pension plan!

That is how ours is done.

If I have this right - the wall plate supports joists etc, you just need to tape the sheets, wall / roof, together before fitting the wall plate. Don't forget that blown cellulose is pretty air tight when pumped at high enough density - the sort of density you need if you want to avoid slumping.

Exciting stuff, just get them to drive round a few of the big builders estates and publish the data - lets see how they come out.

Somewhere on here I did a site calibration of the Bosch, all my class one tapes and the total station. The Bosch came out well, +/- 0.3 mm over 10m IIRC while the class one tapes were a good way out and didn't agree being very subject to the vagaries of temperature.

Leica Disto maybe. Expensive and good but very limited features - have a Disto, a Bosch and a Lidl (the Lidl one cost £15 - 1/10th of the other two) and works just as well as they do, does not have Bluetooth like the Bosch. On the Bosch Bluetooth operation tightens up the resolution to 0.1mm - who needs that on a building site!!!!!!

yes - they will understand the window system so will make all the correct allowances and work out things like sil / transom heights for Building Control.

Getting away from us southerners - and you will end up with @JohnMo on your door step you could do a lot worse. Welcome to the Forum for people like us.

It is not fool proof but perhaps test a couple of places WITH THE MCB OFF, the meter on 600V range and with safely insulated probes - see dia below, ?1 = what I think you are doing plus also try ?2 and ?3 to see if the neutral has got away from earth. Disconnect any lamps - ?4 as modern LED and tubes have electronics in them which may be charging, and try the voltage test on the DC range as well as AC to see if anything odd is out there. If it goes away when you disconnect the lamps then its coming from / via them somehow and you might be able to spot where the problem is given the 1,2 & 3 tests at both AC and DC.

Aye up Terry. Which W above is meant to read P, suspect the second, or have I missed something?

I have been doing ours on line with UK power networks. Set up an account and just worked through it. It has drop downs for many things including your inverter - not there makes it tough and then all they need it a few pics of the meter installation and a schematic. Need to get ours in now we are putting the cells up, won't connect it up myself, that's an MCS job but have installed the power meter etc as we had the foresight to put an isolator into the power line after the meter so I can isolate it safely.

Yes, totally get that, however those of us made of stronger stuff than clotted cream have mastered the art, with the help of small team of counsellors, of living close by him. Of course we take great care not to poke the dragon for fear of fire and brimstone being cast upon us.

That didn't go well did it, I dimly recall paying to visit Essex and return last week!

Very interesting - this is exactly how it should be loads of capacity in a wasted space zone above the cars and shading for cars in the summer so saving on Air Con when they move. Looks like we are doing it here somewhat as well. https://www.bbc.co.uk/news/business-65626371