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I hope this drawing gives you an idea of the general layout. The lifting frame will be built inside a rectangular garage roughly 12'x16' and will fill the garage. It will be supported by a post at each corner. A pair of 16' I-beams used as sliding rails will run along the two long walls. A...

Being cold shouldn't be a problem. Unless you have some heat source inside it, it will always be close to the average outside temperature regardless of what insulation it has. Heating it is likely to make corrosion problems worse since rusting is a chemical reaction and slows down with colder...

A search through the archives turns up numerous questions where people have asked for help sizing RSJs for a building project, and the usual answer seems to be that it isn't possible to answer without making dangerous assumptions and the OP needs to consult a qualified structural engineer. And...

Encouraged by the advice here I've bitten the bullet and rearranged the wiring as suggested. The room stat is now permanently live (subject to the overall CH power switch and fuse) and I have added a "HW OFF" wire between the time controller and the mid position valves "HW OFF" input. I can now...

Thanks Mikely, that's very reassuring. I think I like this approach better than wiring up extra relays, although the suggestion about the relay was much appreciated and is still being kept in reserve.

Once the programmable stat is fitted, I would leave the CH switched on at the timer 24 hours a day 365 days a year and let the programmable stat decide when to actually turn the heating on according to my configured temperature profile and the actual room temperature. I don't want to have the HW...

That's an interesting idea. I can understand how it would need to be connected, but I'm finding it a bit tricky to find a suitable relay. There are plenty of very big multi-pole relays which are overkill for this job (and also rather too big to fit in conveniently) but very few small mains...

After a brief search I can only find this picture showing the location of the two screws that secure it to the backplate (one roughly central, one at the left hand side). I'm not familiar with that controller, but I expect you'll find that once you loosen these two screws the cover will open at...

I've inherited a Y plan installation that looks like a bit of a mess, but more or less works. The only problem is that the CH won't run unless the time controller has the HW switched on. The time controller has separate setting for CH and HW, the HW will run OK with the CH switched off, but the...

:oops: In my defence I'd like to point out it *did* still say CORGI on the side of his van. :lol:

Thanks both - CORGI it is.

I've got a rather elderly W2000 which has got into the habit of having the pilot light go out occasionally. Usually it relights OK but today the pilot won't stay on. From the symptoms I've guessed that the thermocouple needs replacing. Google tells me that the thermocouple itself is a £10...

Ouch!

Thanks for that. As far as I can see from the Planning Portal, the relevant section is Approved Document L1B: Conservation of fuel and power (Existing dwellings) (2006 edition) which I have found here: http://www.planningportal.gov.uk/uploads/br/BR_PDF_ADL1B_2006.pdf Looks as if I have a lot...

A relative has a gas central heating system which has been fine for the last 25 years but is starting to play up now. The immediate problem is that the boiler is sometimes failing to light. It's a Potterton Netaheat 16/22 F Mk II, and the plumber called to fix it has advised that it's too old to...

Can anyone offer any theory to explain why the pump could cause this? All I can come up with is a U/S pump causing an overtemp trip in the boiler, but the description from the OP seems to indicate that the old pump 'should have been' pumping OK (no signs of blockage, and spinning under its own...

So far I haven't had any problems with the rads themselves leaking (fingers crossed!) but I've had compression joints that weren't leaking but showed signs of having leaked in the past, suddenly start leaking again. I guess they'd got clogged up with rust or something and the flushing agent has...

Yes I've been very pleased with the Magnaclean. I didn't realize there was so much difference between the different brands of flushing agent. I went for the X400 because our local plumbers merchant had racks of the stuff on sale. It sounds as if I'll need to look for alternatives next time...

Thanks Dan, I'll do that.

I'm using Sentinel X400 flushing agent in combination with a MagnaClean magnetic filter, to remove sludge from a system that has been run for years without any inhibitor. My hope is that the flushing agent will gradually lift the sediment from the nooks and crannies that it has settled in...