PeterW

No issue with using barrier pipe as long as you can get the fittings to go from 16mm to 22mm or 15mm Usual problem is they are 2-3 times the price and it negates the cost of the pipe which you can get in large reels at pretty low prices.

So can anyone explain how this place they are building on the Wirral (C4 now) is getting away with not insulating the existing walls ...??! I get the floor isn't being altered so that stays as is, but how can they not do the walls ..? (OK scratch that as they are doing it now but ... BRegs..??)

I did look at this one as it had the magnetic bit and was flat not curved.... http://www.axminster.co.uk/vaughan-stealth-hammers-117360

... they are just hammers aren't they ...?? I need to replace my claw hammer, but I was surprised at the sheer range (and prices...!!) of them as I've found them from £3 to £50. So does anyone recommend a brand or a reasonably priced claw hammer ..? I'm fairly hard on tools and expect them to last, some of my tools are my dads trade tools that are over 50 years old and are still going strong.

Dektite may be your only option - they make one for corrugated roofing. Airtight layers are always a challenge as you can't put combustible materials next to a twin wall flue. Its a known issue and there is stuff here about it http://www.stovesonline.co.uk/airtight-roof-penetration-kit.html and this is the product they refer to http://www.deks.co.uk/storage/deks/pdf/Air Seal Leaflet.pdf

I think the issue is that yellow gas pipe is only rated for before a meter. I've asked the question of a friendly BG fitter ... [Edited] ... who has said you can use 20mm yellow poly for the interconnector buried to the correct depth, and you should then terminate with an isolating valve and then continue with copper in the building.

That's how I was always told to do the horizontal upper tiles of a window reveal as it sets quicker than adhesive ...

So the exact wording is.... (and bear in mind this took them 9 days to send me the original letter, and 10 minutes to respond via email....) "Apologies the reason for this is because the application did not load into the back office system which is connector from the portal to our planning software here at the council and so was manually created with any of the normal documents, I will see that this sorted asap." So they accept it was an issue with their systems ..! The portal shows them downloading it on the 1st November at 13:20...

Like Daves, mine has 2 units and I plan on changing the filter membrane on the extract side for something finer for the first couple of months to ensure all the construction dust etc gets caught and doesn't end up in the heat exchanger units Filter media on a roll is pretty cheap too

So after assurances on Monday that it was resolved and it was their problem not mine, I've had a "standard" letter stating that its going to take them until the 12th December to review and comment !! So basically they are making me wait 6 weeks.... I feel a call coming on today !!

Ah ok - hadn't realized it was a combi

Why not go for a ducted unit ..? It would be less obtrusive but would make a mess of balancing mvhr..!

Put the boiler in the utilities building (!!??!) and run the hot water pipes instead ..?

Anything smaller would need sleeving anyway - refrigeration pipe is 10mm soft copper normally, which gives you 28mm OD with insulation. You could go for 10x15 which would compress into 32mm waste pipe but that's about as small as you would want to go. If you are planning now then get a refrigeration engineer to have a look - with proper design you could end up with just a single external unit for 2 or 3 internal units, saving on pipe work, wiring and holes !

Can't see either BC or EA going for that - no standards and no real data to back it up... makes you wonder if they ever got past the R&D stage ..?

Don't use foam .... Most refrigeration pipes use 10mm copper with a measly 9mm Armaflex or Insultube on them. Upgrade the insulation to a 28mm bore 25mm wall over layer of tuffcoat if you can get it as it's UV stable and use this to "seal" your hole through the wall, sleeving it through a 63mm down pipe. The insulation will compress enough for you to push it into the ducting and it lets you replace the outer layer if it degrades or gets damaged.

PDF may be quicker as I can look on the train

PM me the drawings and I can have a look

So the way I would approach that is to get a "workshop" built first that can accommodate a reasonable size panel with a flat slab base to work from. This could be as simple as building your link building temporarily. From this, get a 20ft container to store your wood - a double ended one is idea as you can load the timber one end and then have your chopsaw set up at the other - and then cut and feed from your storage into your panel assembly area. Completed panels can be stacked flat under a waterproof cover until you have enough to build your first structure. If you work on "standard" panel sizes using 8x4 models (think Segal buildings) then you can simplify your components accordingly and speed up your build. You may also want to build some templates or jigs to speed up the construction as its as simple as dropping the timber lengths in and gluing/nailing joints and panels.

Welcome James Most timber frames are up inside 1-2 weeks and pretty watertight at that point, not sure what a steel portal frame would add to the project other than complexity..? Given your outline design, I would expect you could get each "module" watertight on its own without too much hassle inside a week.

I do wonder if they have quotes for a new 3 phase supply up to your boundary and then a single phase supply to you reading that. As stated by others, the contestable works are the trenching and road crossing, cable connections at both ends have to be done by the DNO. Are you going into mains drains ..? That's the other large cost for road openings a mole can't usually be used for that.

As long as you can show that the void has adequate unrestricted air flow then there should be no issues. The image half way down this page is take from the building regs http://www.stovesonline.co.uk/stove-ventilation.html

Looks like there are some nice gaps between the steels and the floor beams too so cables may not be an issue after all !

That's not bad value to be honest with a road opening, substation and transformer upgrade. Any other services share the road crossing costs..??

Hi and welcome. It depends on complexity of connection - how far, how deep, transformers needed etc ..?? Do you have any info on what was requested ..?