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From a design blog, a stencilled patio using masonry paint. Interesting idea for a shortish term makeover to concrete slabs. But stencilling is real attention-to-detail stuff. We had a stencilled border on a floor to detract attention from the floor material, and it took a lot of care to do. The design here looks to me to be intolerant to slight misalignments, though the curved shapes and space in the design at tile-edges would help. A bold random texture might be an easier alternative. Credit: https://iamhayleystuart.com/2019/07/04/my-patio-makeover/ . Worth a quick read. I do not understand keeping the fence; that looks like the cheapest form of panelled fencing you can get, and may disintegrate when coughed on by a goldfinch. Unless it is next door's, in which case it formally needs permission to paint it.

Hi Clive. I'm afraid that is not the case, and have real-world experience of fitting wet heating systems in 'passive' standard dwellings ( so speak from experience ). The heat output from UFH in a decent sized slab is very mild-mannered and very easy to control if set up correctly. You would, for eg, have less overall comfort from a heater that switches on / off vs one that stays at a chosen set temp, plus not having the slab means you cannot load-shift off low rate electricity as you have no thermal storage from such an emitter as the panels you mention. You are a slave to whatever rate of electricity is available at any particular time when you heat via such mediums. Any inefficiencies from the wet system are soon absorbed by the many benefits of it, load-shifting for one, but also a house with a cool / cold floor is not very pleasant in a residential dwelling IMHO, but the panels would have some appeal in other retro-fit situations I'm sure ( where the higher running costs are outweighed by convenience ). In short, you would also end up with "too much heat", locally to the panels, when trying to heat a whole room with them, so 6 and two 3's I'm afraid. We will always have 'thermal mass'.......... Hmmmm, is that Jeremy's drone I can see from my window. "INCOMING!!!!!!!"

The reason I got rid of my BOC Portapak was the eye-watering bottle rental, although I made up hoses so I could surreptitiously refill my bottles from full size ones at work (BOC definitely would not have approved!).

I'd only consider that in a really extreme set of circumstances, as there will inevitably be some degree of mixing between the intake and exhaust, plus it may well invalidate some performance elements of the MVHR unit warranty, or be considered non-compliant by building control if they chose to be pedantic. It's a compromise solution, for circumstances where it would be impossible to fit two well-separated external terminals, rather than something to be used routinely. There is guidance in Part F and in the associated Domestic Ventilation Compliance Guide on the placement of fresh air intakes and exhaust terminals and it states that the exhaust terminal should be positioned down wind (relative to the prevailing wind conditions) from the intake, and sufficiently far away from it to ensure that exhaust air is not drawn in to the intake. Additionally, MVHR manufacturers often stipulate in their MIs the spacing, and MIs always overrule building regs when it comes to compliance demonstration. For example, the MIs for our MVHR stipulate the following separation criteria between intake and exhaust:

So are you now eventually saying, that the key to your energy saving claims are as I suggested earlier that you keep the ROOM temperature lower and achieve comfort for the occupants by the radiant heat they receive directly? If so, then why not just state that claim in plain English, and then people might believe a system that can achieve comfort for occupants while maintaining a lower room temperature could actually cost less to run. EDIT As Steamy Tea says, that would make a low running cost claim true, but it would still not make the heaters "more efficient"

Not sure what to make of that.

Congratulations..!! Must mean the bathroom is finished ..???

OMG, Thermal mass, everyone duck ?

YouTube recommended this video to me. Shows someone building a SIP house with SIP floor on interesting looking foundation "posts". Sorry its in Greek(?). Skip the first 10-12 mins unless you like looking at a pile of SIP panels.

Yes you can over drill the core for a joint - you’ll need a 125mm core drill.

I have and will post in when i am in the office.Remeber i have said wavelength changes with temperature. Also not being rude I have said that many times its FIR and Temperature needs to be right. We have some very expensive test equipment to hire and an expert to use it coming soon. The purpose of this is to measure exactly the difference. We use FLIR cameras all the time but at our price level tolerances are as not great as it could be . Let me post independent test results as promised. Then we can comeback to this.

Interesting site. Not sure about the prices they are using though. We pay 15.729p/kWh peak rate, that site quotes 20.99p/kWh peak rate. We run our ASHP for heating exclusively on the E7 rate, which is 8.148p/kWh. Using their ASHP COP, then at peak rate the cost would be 5.8p/kWh and at the E7 rate we use the cost is really 3.01p/kWh, much cheaper than mains gas. In reality, our ASHP always runs with a COP of well over 3, usually around 3.5, so the true running cost is closer to 2,5p/kWh, much less than half the cost of a boiler running on mains gas.

If they priced electricity at something more like a decent retail rate of less than 15p per KWh the table would be a fairer comparison. (Why are they quoting 20.99p per KWh?) That would give 5.55p per KWh for an ASHP which is comperable to mains gas.

and of course you had it tied down with the compressed gas hazard stickers on the car?

Quick google shows the filter to be £50 as are the valves so that's £150 in parts. Add £50 for the inhibitor & cleaner and you're up to £200. So £400 for labour - all depends how many hours they expect to be on the job... Edit - as ever Jeremy has done a much more thorough job than me

Welcome. Breaking that estimate down by item: Honeywell 2 port valves cost about £80 each and will take maybe an hour to change, at around £20 to £30 per hour, so about £180 to £190. A power flush takes a couple of hours or so and typically costs around £200 to £300, so that's another fair chunk. Refilling and testing the system shouldn't take more than an hour, so maybe £20 to £30 for labour. Inhibitor will be around £30 for 4 litres. A Salus magnetic filter is about £50 A boiler service is typically around £100 to £120 or so Adding that lot up comes to a bit over £600, so the price you've been quoted seems about right.

https://hobbyweld.co.uk/ there are others who do the same -- you pay a one off depsoit --then just pay for refills I became an agent --when i got fed upof paying £600 per year ,just for the rentals of my ox .acte ,argon and argon miX bottle as my usuage in last 10 years has been very small so full size bottles too expensive on rental yes you pay more for contents -- but still works out much cheaper if you just now and then -- if you use 2 full size bottles a year --then maybe usual rental system may work for you --If not then smaller size bottles where you only pay an initial deposit contents will be at least twice or 3 times the cost --but no yearly charges or delivery costs and now all bottles are barcoded they know if its a genuine bottle with a valid rental agreement --so the old way of just getting a bottle swopped does not work anymore --EVERY bottle has to have a rental agreement with full size main stream suppliers I don,t have acet any more --just use oxygen and propane for heating or burning things off ,as all the scrap yards do acet is expensive and bottle deposits are expensive as well

Yep

If space is really limited you can put the ducts much closer together using a combined grille like the Maico KWH 16 R http://www.heatspaceandlight.com/space-mvhr-ducts-tight-combined-intake-exhaust-grille-solution/ Only know this because our system designer has suggested this. He's also recommended the enthalpy exchanger too (partly because we may add some active heating via the ducts, which can push humidity even lower)

Not that multifoil insulation sellers would do anything like that.

99%. Needs - mirror, - bog roll dispenser, - toothbrush charger. - cupboard shelving and lighting in cupboard - UFH - Body dryer That'll have to wait. Off to design/make a "Bricky" esque jig to clamp/slide up the 100mm box section to lay the bricks with and keep exact 10mm mortar joints. ...I'm not joking.

Very entertaining. Not making a very convincing impression for the system @Clive Osborne Probably the wrong crowd here . They rely far too much on facts. It s terrible. Would be interesting to see the "German test results" mentioned earlier. We all know that anything tested with the word "German" in it is far superior and HAS to be trusted. ?

Bit of a boob there, if you try eating every pasty you see.

Its because it isn’t hot. Thermostatic valves need a temperature differential to operate - it’s locking down the flow because there is no hot water to open the wax cap.

I do not see how Development can start whilst you only have Outline Planning Permission, by definition. I do not think that you can start development in law without Detailed PP. Outline is about the principle of development. But this is the sort of area where it may all turn out to be muddy water, and I can well see someone trying to argue that you had started because you did and therefore xyz, even if it is not allowed to happen. I would definitely be wanting a Council Confirmation in writing to cover my back.

As there appears to be some issues with clarity of information on this thread could you just confirm that you put the pasty in your pants? Do you have any efficiency calcs?

It's not all bad news - all the costa del sol pensioners can come home and settle on the south coast, enjoy the same sunshine, egg & chips diet and speaking english at the locals.

Sorry-crossed wires I think.

Of course @AnonymousBosch if you would like to pass on my details we’ll see what we can do to help.

@craig, anything you can do to help?

not any more they don't ? Your complaint–Fischer FutureThankyou for your patience in what we acknowledge has been a lengthy investigation. We received a considerable amount of evidence from Fischer Future in support of the claims in the ad. Our assessment of the evidence raised a number of concerns and Fischer Future has agreed to remove the comparative elements of the ad (claims comparingFischer heaters and conventional storage heaters). We consider that this will resolve the complaint without referring the matter to the ASA Council, and will consequently be closing our file.In a formal investigation, if the ASA Council decides that an ad is in breach of the Code, the advertisers are told to withdraw or amend it. Because Fischer has already assured us that the advertising you complained about will be amended, we consider there is little to be gained from continuing with a formal investigation, which would achieve that same outcome.Although we will not publish full details of your complaint on our website, www.asa.org.uk, basic information including the advertisers' name and where the ad appeared will appear on Wednesday 30thJanuary.