scottishjohn
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Everything posted by scottishjohn
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theres about as much chance of that happening as anybody tackling the real problem which is over population . tas for tackling imported goods that have been made using cheap energy --I,m all for ramping up import taxation dramatically eg --Ican buy fuel injector in EU for £42for 20 units per purchase -retail £98each i can buy same unit from china for £13.20 inc transport --now you could 20%-30% import duty and i would still buy from china - that taxation could go to make us more eco friendly in energy production.--but again never going to happen so anything an individual can do is bugger all in the scale of things--FIT --or TAX credits ,which is my current favorite idea is a way you could increase micro generation quickly by a large amount
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My answer to you is if you think it is such a gold mine --then start up yourself and under cut the others and make money by being booked up in advance a year in front thats how biz works
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sub-sahara --will be using PV ,wind or solar thermal ( to drive steam turbines) any way --not coal its china +polland +germany that are main culprits there --all developed countries and in temperate climates ,which is why wind in uk is best option --other than hydro ,which very few governmenst wants to make long term investment in dams . plenty of big rivers in europe they could use. no reason why the thames barrier could not also be be tidal generation as well--short term thinking again
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MCS covers the whole lot, so what's really needed is something to compete with MCS, or that allows any competent person to demonstrate compliance with whatever set of regulations needed, in some other way. I do not see how another body will make it any cheaper ?that is purely down to supply +demand my plumber who fitted ASHP was happy to get the work ,even after me asking lots of questions on how he was going to tackle the job, so i don't think he added much at all to price ,as i got attempted to get quotes from 6 different companies to replace my gas boiler with an ASHP 3 said they would come ,but don,t think they liked me saying ,don,t just send a salesman ,but one can actually answer engineering questions about the job --so 3 never came of the day appointed day to quote 3 did -and one I discounted after a 10min conversation --he failed the exam .LOL and eventually picked the slightly more expensive one after his interview i already had UFH --so it was just a a heat source change
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I agree with most of what has been said but I think the real reason MCS came about was the government misguided belief that it would stop a cowboy industry starting up like double glazing was in the beginning. where they would be paying to support and encourage its take up so having a requirement for approved fitting network to industry standards -makes nice clean break of responsibility and supposedly gives MCS system some control over standards of fitting as it encompasses not only electrical work but total fitment of systems Its not just PV but all micro generating systems that could attract grants hydro ,solar thermal ,wind,biomass ,ashp ,gshp etc technically there is nothing stopping you doing it and just paying for a completion check by MCS approved engineer who will make out the paperwork It would interested how much of a premium they really charge over what a normal plumber or sparkie would do -NOT diy where you are only paying for equipment-that is an unfair comparison . thats like someone complaining i want to charge them £800+vat for fitting a clutch to a 4x4 ,where I have to remove engine to do it and telling their friends the bits are only £150--"what a rip off" -- and they spend 3 or 4 days doing it as a diy job. no the bottom line is that the pricing of systems and no FIT will control the up take due to pay back period --not really the MCS costs
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Accumulators External installation or other options
scottishjohn replied to Alex's topic in General Plumbing
adding a pressure boosting pump could be cheaper and simpler to fit than a large accumulator ? worth checking out -
this looks is very interesting development in TF construction --
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when governments do their bit I will do mine and they can start with air travel and the pollution that causes and follow that up by stopping all coal fired power stations world wide what i can do to make any difference is--sod all. making it viable for us to help is what is needed and as long as we get taxed the way we are we need all the help we can get how about a tax credit for all green improvements?. thats a very low cost to them the same as registered charities get if you make a donation ? you give them£10 --they get tax credit form government for same amount
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Accumulators External installation or other options
scottishjohn replied to Alex's topic in General Plumbing
I,m probably being thick I,m sure you will correct me ,why would you need an accumulator of 500litres-- and by that you mean a tank with a diaphram in it to keep pressure up as you use this stored volume ? if your water pipes in the house were of a large enough bore to start with and your water pressure was high enough ,there would be no problem or is it a mains supply sizing problem as well. stands to reason if you trying to tun 2 or 3 outlets supplied by 15mm pipes then they need to be connected to much large diameter pipe so flow rate and pressure does not drop. a 22mm pipe will not run 2 X 15mm at same flow as it can run one,so pressure will drop --28mm pipe could -- not many will be using 28mm as ring main for cold or hot supply in house EG large pipe with manifold where the 3 smaller ones come from -,not just teeing 3 outlets off one 15mm pipe and expect them all to flow full at same time . a booster pump to lift your mains pressure in the house ? or just a booster pump on the shower ? Could this just be a function of the trend to use smaller pipes than people used to use ,and because no one uses gravity cold water tanks any more if you had toilets etc connected to a gravity tank in loft there is no problem a good reason to use a rainwater harvesting tank and pump for toilets +washing machine+ garden hoses etc plus less metered water usage for those in England -
my build project i am looking at has enough space for as much Pv as i can afford to buy , but the export price is what will swing it ,until that alone can get a payback in that sort of time scale its still not a viable really . I am guessing your calculation is on the assumption that you will continue to use 90%of your production , so unless you can use that amount then its really still a "tree hugger " thing I suppose one could say if you used all this pv to heat a thermal store for UFH etc then your COP would be around 2.5-3.0 in real terms so the question is ,when do we forget heat pumps and just use Pv to heat and store water? and then costs of a large storage system will be the problem which brings it full circle to solar thermal --and that is where that falls down --cost of large enough storage I know I am simplifying some things --but thats the basic outline as i see it
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so how long to get a draw with cost of panels verus savings on buying energy ? which is the only thing that really matters energy prices will keep rising as sure as the sun comes up ,so how many years before you start to see the benefit of the investment
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OSB VCL and foams vs natural materials & moisture open wall
scottishjohn replied to joth's topic in Damp & DPCs
only comment i would make at this stage is that from my investigations your taking about £30 persqm for closed cell foam when done to the inside of a bulding( before you closed wall with PB) at 100mm thickness ,and the cost to go down to 50mm was not that much cheaper once they are doing it. but to fill a cavity -apart from not being able t be certain its all filled with no voids ,they will have to be drilling walls every meter or so both horizontally and vertically before they even start . so i can,t see it being that cheap? -
probably different as you have private water companies .in scotland we don,t I know once upon a time if you had your own well and sewerage system and no gutters --there was no water charge in the rates bill of any sort now there is an amount that all pay no matter how you deal with sewerage +surface water. and water meters for domestic are few and far between here Re the council rate charges+bands https://dumgal.gov.uk/article/15261/Council-tax-bands-and-charges
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and i am guessing that when you say your surface water is going into your soak-away they will tell you that it eventually ends up in the river ,so you still have pay something. commercial is different in scotland as they calculate total roof area roof and any tarmaced area on property and make an charge on that area for surface water . then foul water is a percentage of fresh water usage . I would leave well enough alone if i were you
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A little confused on SWA sizing for mains supply
scottishjohn replied to scottishjohn's topic in Power Circuits
the main thing is to have big enough cable in at this time for anything later ,like maybe a few holiday cottages+a big pv array -nothing for sure just trying cost worst case scenario and not have up grade supply later if it all works out -
A little confused on SWA sizing for mains supply
scottishjohn replied to scottishjohn's topic in Power Circuits
budget price has now been obtained from crown Utilities waiting for another from scottish power networks was not as far away as I thought -130m and asked for quote for 60kva 3phase,which includes transformer budget cost --that could change , hte quote is with me digging trenchs +cutting trees down for the underground cable etc £26k+vat It gives me a clue at least -
self build.....where to start.....
scottishjohn replied to Amateur bob's topic in Introduce Yourself
find one with no roof --then no survey needed -
ICF and airtightness
scottishjohn replied to bissoejosh's topic in Insulated Concrete Formwork (ICF)
I have spent last 9 months studying ALL ICF types I could find of the poly types ,but looks like i may be rebuilding an old house now instead- my choice would be Isodom2000 or integraspec for poly type Isotex for woodcrete type all worth a look if you thinking of ICF I,m sure they all work fine is care is taken I certainly wouldn,t be put off using TF just cos you have to fit memebranes , sure there are a lots more boring things in any build job you have to do -
ICF and airtightness
scottishjohn replied to bissoejosh's topic in Insulated Concrete Formwork (ICF)
this will be why that type(durisol +Isotex) always seem to suggest a parge coat on outside to seal it up .if not using a membrane velox type would not need it as it is a conitnous wall of concrete --no webs or hard plaster internally and chase wiring in to the walls ,same goes for poly types no big deal to use one of those stucco/tirolean spray things to fill up the surface on outside before final cladding I still think a VCL under the plasterboard if going that with service void, would be a good idea though ? -
plenty of space for a GSHP system would make an ideal wedding destination /function hotel you would think . big downside i see is only 3 bathrooms --so everyone would expect ensuite now- but even then it still looks a gift
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unbelievable value i know cos pretty sure the owners ran out of money --so maybe a quick offer under the 1,000,000 might secure it when you look through the picces you can see where they spent their money that,s what brexit and threats of another scottish ref does to house prices
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no problem i as long as your dhw tank is cycled above the threshold periodically ,you don,t have to store water at high temp all the tine and save money
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why would you want dhw at 60c --you can,t put your hands under it ,just going to be putting more cold in it to be able to use it? all ashp have a dedicated dhw function ,where it swops from under floor to dhw tank when DHW tank temp drops -but it will not heat to 60c more like 52-55c or less if you want -,but it will automatically cycle ,now and then higher to kill any legionella possibility at this time gas boiler will be cheaper --until they raise taxes on fossil fuels
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@JSHarris In another thread you stated main build was £630per sq m --but your final cost was £1380 sqm -just shows the difference between basic shell and finished article -and that how people go way over budget, in the finishing off if not careful , which you obviously were
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just for a laugh see what you can get in an area thats has low property values, https://search.savills.com/property-detail/gbglrsgls140163
