Nickfromwales

If I thought you were being argumentative I would say; " @scottishjohn stop being argumentative". I have said nor implied that so be mindful of how you read things please I'm stating facts, and offer that information for the benefit of the forum / thread etc, and I only stated one example to dispel what you have said eg ( and to quote ) "the 7 year payback is now twice or more" which is not the rule, clearly its the exception, but is a statement you conveyed as definitive aka a bum steer to the OP. If you have been quoted to that effect by someone then I suggest you look elsewhere All the members here receiving PV installations that I'm around are all walking around with smiles, and respectable figures for the RoI. Longest breakeven I've seen is 13 years, on a heavily fragmented and difficult array, but still worthwhile as the equipment had such long warranties and expected productive output / lifespan.

Yes, but you hand-crafted each panel from milk-bottle tops

Yes MCS, and Gloucestershire. The fit and export figures were a pittance, and should NOT be any point of focus in a well designed and conciencious installation. The figures to focus on are the breakeven point, less the nonsense, and the amount of electricity costs it will offset over it's expected useful lifespan, less maintenance.

That is an assumption which is unfounded. Comments like that do nothing to contribute to a thread where the OP will only benefit from / rely on factual information produced by individuals who are doing these installs many, many times a year. I comment with high frequency on plumbing etc as I've done it for over 23 years, and would consider that information I give out is subsequently robust. I dont offer opinion unless after giving my opinion I put ( IMO ) to make folk aware. No PV system would have a payback of 14+ years, unless it was surveyed, sized and specified by a tool.

You do a survey, like I do, and prove that its worth it Current client; £13.5k cost for a 9kW system. Breakeven at year 10.5. System guaranteed output of min 85% at the 25 year anniversary, with an expected lifespan of 30+ years. Over £25 years the array will produce ( offset the purchase of ) around £34.5k of electricity. Worst case of 2.5 inverter changes in the 25 year lifespan ( Solaredge with 12 year warranty, not cheap Chinese crap ) so allow ~£2.5k for known maintenance. RoI = £18.5k over 25 years, plus whatever additional free electricity it then goes on to produce until it dies. See it now? ?

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Never use solvent weld underground. With heave etc you need the flexibility of the rubber seals in the fittings. A solvent weld underground probably wouldn’t live through the backfilling of the trench. ?

Yup. Two beads abutting to give a decent 'chunky' appearance and create uber-sharp and arrow straight lines / edges. Plasterer was a demon for detail, and that's obvious in the quality of the final product. In all the vaulted junctions / intersections stop beads were used and skimmed in to for some of the straightest lines I've seen in a very long time. Top crew.

Hepworth are a good manufacturer, also Terrain, Polypipe and Flo-plast. Much of a muchness tbh though. Longevity of the fittings is generated by correct installation and ensuring the pipes / fittings are buried or supported accordingly. Standards exist for this so its relatively safe to proceed with any of the above. Just ask bonzo for a materials list and buy the stuff yourself. Simples. ( unless he's willing to give you the VAT equivalent as a discount on his labour ).

When done you can stand on the front lip and it'll not move a jot. You'll need to allow the CT1 to have fully cured, so 72 hours is wise before doing any ass-robics

My laptop is on windoze

Can I use that instead of iCloud? Those robbing fuckwits want more money for way less storage ?

Hey-up. You have to click on them. no pic of a play button but yes, I got to watch you flush your bog. My life is now complete

Whats the score with Dropbox. Bar stewards want money off me to use their service. Cheek of it. ?

Nope. You f*****d it up mate

Ola. Damn, hours in the day are getting bloody well thin. Apologies. Something rigid like pvc tube over the thread would be better than anything soft tbh. Strange the pan didn’t come with captive nylon ‘sleeves’ tbh, but at the end of the day as long as metal and porcelain never meet it’ll be chips ‘n’ gravy Bob. The fact it’s bonded to the wall will stop movement eroding the sleeve so “carry on”. ??

Clocks ticking ??

Paint is your friend here. Get a small piece of batten, try and get it bonded in behind the hole. If that’s not possible then fill with foam first and cut a 50p sized piece of Pb and bond that in 3-4mm shy of the face. Leave 48hrs min to cure. Mix pva and water 50/50 and apply with a small brush, coating app 100mm around the hole, and make sure you saturate the open grain of the Pb. Apply a good few coats until you know the dusty ? is all sealed up. Get some Toupret filler, and mix it like pâté ramming it intonthe gaps. Smooth it off once with a debit card / similar, once north then east / s & w and leave to dry. Beware trying to feck about with it at this stage as you’ll start the paper peeling. Once dry ( toupret can be dried with a hairdryer without shrinking or grinning ) sand the filler not the paper and then reassess to see if any more filler is required and reapply as necessary. Youre looking to get the filler flush as possible with the face and then back to my opening statement. Buy a thick chalky paint like Leyland High Opacity and brush a thick coat over the repair epicentre. Leave to dry. Do the same each morning and evening until you’ve gone to a patch of paint around 400mm diameter with the centre being thick as you can muster. Leave for a few days to go bone dry. Then start sanding back with 240 grit wrapped around a piece of 3x2 ( no sharp corners, rough those up with a bit of scrap wood first before going near the wall ) and block sand the paint over the repair. When you get to the point it’s looking ready to re-paint use a 400 grit paper to sand the periphery to a similar standard. Leave alone at that stage and repaint the whole wall with the same chalky paint as if you were painting from scratch. Build up a couple of layers and assess. The shine of the fresh paint as it’s filleted on will give you a ‘reflection’ which will show if any stage needs repeating. Dont use any tape etc or you’ll be doomed......doomed I tells ya ! When happy, chuck the colour coat back over and vow never to make holes in paper walls ever again. ?

Hi and welcome. We prefer discussion with known / existing build methods as they are of immediate relevance. Hopefully that will be observed Many thanks Mods.

There are many people out there blabbering on about super-insulated / eco-friendly / low energy build approaches, but most are talking out of their arsehole I'm finding of late. One client stated "near passive build standard" and then showed me their plans for 70mm of PIR over cold ventilated block and beam with UFH pipes atop in 80mm of screed.....WTF?!? Another building a low energy home in block, but not even approached by either the architect or the builder about parge-coating or using wall plates instead of sockets into the cavity. That's the money shot. With no accurate direction most builders will just revert to the same standard they pedalled out for the last 20 years. I have actually caught one builder purposefully dissuading a client from putting 200mm of PIR under the heated screed in a summer room, 10 minutes after I told the client to order it for the builder to install. Idiot. The terms get banded about too loosely, and as BR don't 'go that high' nothing gets enforced. BCO's are overjoyed to see 5mm more insulation,

The overlay systems need a painfully accurate control system to stop over & under shoot of the set room thermostat set point. These types of floors continuously give me a headache as I get called out to installs for rental / residential tenants who just cannot get their head around UFH, and the usage patterns of. They typically need a higher water temp to achieve what a slab would do with say 10oC lower flow temp, so suffer from the hysteresis of the floor not being accurately responded to by the room stat or the heat source. FWIW, I would not quote for an overlay system as its a PITA to control and an equally large PITA to get a customer / end user to understand how to use it properly. Not a fan, sorry.

I think that'll be dependant on the pan. That thing your holding, IIRC, is the bit that sits on the threaded bar to stop metal meeting porcelain. Some ( most ) pans come with captive fittings which stop that happening, and I've noticed a few frames have come with kit which ends up redundant / binned.

Separate your heating and hot water ‘thinking’ as they’re two very different things. The boiler will be able to do both heating and hot water ( re-heating the hot water cylinder) with ease, even with a kW rating as low as 14-18kW. That 30kW boiler in @nod‘s is very big but will be able to reheat the cylinder a bit quicker. Its the kW rating of the coil inside the cylinder that decides how you convey heat from the boiler ( primary ) circuit to useful hot water though, and you can have for eg a 60kW boiler and a 10kW coil and still be waiting as only 10kW will be conveyed at any one time. Not so simple a question so needs a little more understanding so you can ask the right questions

As these types of boards / trays are ‘soft’, do not use a mosaic smaller than 50x50mm

Yes. These types of panel form a DPM. You’ll need to make sure the adhesive used to bond them down doesn’t ooze upwards through the joints as that will bridge the board. For dofferebt thicknesses, use different boards. They’re available in 25mm, 20mm, 10mm and 6mm Just bond together the ones which make up the required depths, and these are easy to cut with an old saw / Stanley knife. Use a similar type of shower tray former and it’s a no-brainer.......Link