PeterW

GPS is arounf 3m currently based on 3 or more satellites. The new European Galileo sat network will remove reliance on the US / Russian sat network and give a tolerance of less than 10cm when fully operational.

So.... all approved as of 15th December !! I was thinking that some of them were pushing it a bit as NMA,but they have gone with the lot ! Just need to get phone numbers redacted from the flippin application form..!

I think thats my "issue" though @jack - If you control the slab by the return temp, what happens when you have say south facing areas that have warmer slabs than the cooler ones..? You want to use that heat to be redistributed across the cooler zones but if you use multiple heads to control the circuits you then lose that heat source. Or I may just be over thinking this....

@TerryE I considered the same approach but I was trying to work out how to manage different temperature returns from different loops - does the return temp method not rely on having multiple zones and multiple sensors..?

Check your SE hasn't specified bolts to retain the ends of the steels. If they have it helps to have one end of the steel with slightly longer slots to allow for alignment when installing - heavy duty glue insert studs and nuts are your friend here rather than rawlbolts. Drill, insert the glue and stud and then only finish tightening when the glue has set.

Public liability is still required in case someone trespasses and injures themselves... barking mad but true ..!!

Potentially..! If he is quoting a pair then he's either running them in series - so basically cold through the first into the second - or has a plan for parallel which will be a b!tch to balance properly ..! FWIW Telford do a 400 litre UVC and it's not expensive ... you just need a 40 litre expansion vessel which you would need with your current proposal anyway.

Heat from those pipes will be the square root of naff all - pump motor will get hotter from the bath above than that pipe ...

No I just copied the wrong link ..!! http://www.jcc.co.uk/lighting/skytile-linear-1200x300/

From memory it was one of these but it came via a clearance auction http://www.jcc.co.uk/lighting/skytile-linear-1200x600/

For the 600 ones ..?? http://m.ebay.co.uk/sch/i.html?_from=R40&_trksid=m4084.l1313&_nkw=152186147242

Yep..! I've got a 1200x300 one which I picked up in an auction for £5 and it's like daylight when you switch it on ..! Im adding two in the garage - this one I have will be put over a work bench.

If that is going to be visible do you not have any chromed copper lying about as it always looks a bit neater ....

Boiler size is directly related to heat loss so if you want to calculate that then you need the heat losses for the house first. Hot water storage is just a big buffer - if you use an electric shower as an example, you need circa 9kw to get a decent flow on a shower at 12l/m - at a blended temperature you could say you have 9 l/m of hot water so a 300 litre tank will hold roughly 30 mins of water. A decent gas boiler will be pushing upwards of 20kw into the tank so you should be able to run 2 decent showers pretty much without a challenge. It's this reason why low input sources such as ASHP need larger tanks as the recovery is not as quick as with gas or oil.

Had exactly that with a Screwfix credit note (long story ...) All I did was collected the order then asked them to return the lot, whilst standing and reordering it at the counter .... and then paid with the credit note !

Potentially it does - a lot of businesses it can be offsetting loans and short term borrowing so whilst not earning interest, you're not being charged interest ...

Water is going to need opening the road for you isn't it..? May be worth getting the drain connection done at the same time as you will be doing a road twice otherwise. Can you not borrow a hose connection from a friendly neighbour until the proper connections are done ..?

I had to get round this as I wanted to connect the power before we had the sign off for the conditions so wrote to the council saying it was "unclear what commencement of development was" but the work we were doing was to the EXISTING property and not related to the development as the last thing I wanted was a neighbour saying we had started when we hadn't ! They were fine with this and issued the CIL exemption and sign off without question

These ones as they do what they say on the tin ..! And at less than £6 they are a bargain at the moment ...! I've worn one set out in 3 years - even drilling RSJs.... http://www.screwfix.com/p/bosch-multipurpose-drill-bit-set-4pcs/95958

TBH I don't think those valve cappings are providing anything other than muck protection. The valve will have a flat surface under that cover that butts onto a stem on the rad so unlikely you can add an elbow.

I search CPC using the google search bar - much easier ...!!

What sort of terminals are you looking at ..? If they are the BPC ones, is it the right angle ceiling ports as I would have thought they'd be pretty easy to just seal to a piece of ply and then align and put a couple of screws straight through the plasterboard into the ply ..?

Depends on vintage but likely to be the main shuttle valve that controls forward / reverse and possibly the detent springs or ball bearings and rods which wear over time. Assuming you have checked the oil (20 ish litres of JCB finest oil) and it's had a filter change - 3 filters around the place IIRC - then that should eliminate a low oil issue. If you drain and refill it don't forget that 20 litres of oil won't fit into a cut off 15 litre drum.... ask me how I know ..!! If you don't have the manual for it, they are available to download on the Classic Machinery forum.

Check the planning permission - mine had a restriction from highways that there has to be a turning space maintained in perpetuity as marked on the plans. They may have done the same around the parking on that one.

As above or I've used a shaped aluminium profile powder coated on a couple of jobs that makes for a nice crisp detail. It also covers the edges so if you do get shrinkage it doesn't show. When doing a corner with cover strips in timber it pays to just screw or nail into a hidden corner batten that way the board doesn't get pulled as the horizontal ones shrink and expand over time.