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Perfect - sounds like amongst all the hot air on this thread we have arrived at a cost effective regs approved solution - well done all :lol:

Grief guys really opened up a hornets nest here. I like downlighters in bathrooms they look modern & stylish. Yes it's a ballache above the ceiling with all the farting around to seal, cap, insulate safely etc etc. I have 4 to cap and with delivery it's nearly £50 which is money i'd...

Twice the cost of the entire loft insualtion - poxy things :shock: :shock:

Yes they are in a bathroom - excuse my ignorance but why is the moisture prevention so important ? Would it be better not to cover the downlighters at all ? - if I dont all bathroom heat will fly out of the openings where the lights are.

Guys, I'm just in the process of insulating my loft and have an area where 4 downlighters are exposed in the roofspace. At present there is no insulation over the downlighters , just the cables exposed. I'd like to lay a blanket of insualtion over the area but am concerned about any potential...

Thanks - what's the best tool for cutting the stuff up in the loft ?

Guys, I was lucky enough to snap up 18 rolls of 170mm insulation for £18 in the Npower promotion. Tomorrow I have unfortuneately the task of laying it all :cry: My loft presently has insulation between the joists so I was simply planning on laying this new stuff over the top of existing...

Well guys - what a result ! took it in and they didn't bother testing it, had no equivalent replacements so gave me a 1500l/hr pump instead, mine was only 1000l/hr :lol: ...all this with no receipt ! All's well that ends well :D

Well i tried it in a plastic bucket instead and the result was the same - all the sockets in the house tripped out. Pump is defo faulty - now have to try and convince my local pond shop to replace it as it has a3yr warranty and it's about 18mnth old.....no receipt though :(

Thanks Guys for your help - the consensus seems to point to the pump. I'll try the pump indoors in the sink and see if the same happens, if it does i'll replace it, if it doesn't i'll be a little confused ;-)

Guys, I've an outside power socket that runs a pump & filter for over a year now, recently the electrics in the house tripped out, i reset the switch in the main fuse box and 10mins later it went again. I decided to start unplugging things to see what was causing it and starting outside...

Thanks again Dave - so in an ideal world keeping the boiler in the condensing range ie under 55c will yield best effeciency. I'll try to go for 74 out of boiler and 54 back in and work from there.

So all modern boilers work off the 20C diff ? - noticed the house felt a bit colder y/day reducing the drops to 20C

Guys - you obviously know you stuff far more than i do but just out of interest can someone point out on the vokera spec sheets where it tells you about the boiler differential ? Every article i've read about balancign talks about the 11-12C rad differential.....they are obviously old school...

Well my usage hasn't really fallen a great deal which is a shame - was hoping by balancing and then balancing with a greater differential ie 20C the gas usage would drop and the heat distribution across the house improve. Like everyone i was hoping to reduce my gas usage but I spose at least...

Well i've had my 1st stab and getting a differential of around 20c across the rads. It went ok in the main but it got me thinking further if I set the boiler at given temp ie max for example does if effect the energy consumption if you increase the temperature drop across the rad...i'm...

Thanks all - some fantastic information on here......going to try again this morning with a larger drop across the rads and aim to get the return temp to the boiler under 60C Will let you know how i get on. Mike.

Thanks - how do you go about getting the temp to drop to 57C ?

Any thoughts on the last post guys ?

Thanks again you've been very helpful :D Can I ask a couple more questions please :- 1) What dictates the boiler flow differential ? - is it pre-determined by the boiler manufacturer ?...will it always reamin the same regardless of the flow temperature setting on the boiler ?....ie if I...