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That TLC crimper works very well by the way. Buy the ferrules with a plastic shroud and for the odd occasion that you need the clearance of bare ferrule you can just snip off the plastic.

Depends on the sequence. Soldering the wires into the terminals with no screws? Ok. Crimp terminal then solder? Ok. Clamp in a screw terminal then solder? Ok, but unconventional. Solder then stuff into a screw terminal? No. Solder then crimp? No. Why? As BG has said, solder...

BRE's whole house boiler sizing does indeed allow 10%, but I'd done the heat loss calcs only - and then added the warmup allowance afterwards. 10% (1.7kW) is pretty mean and the warmup rate in cold weather is pretty damn marginal. 20ish % is still fairly mean, but makes all the difference -...

Online calculators are set to maintain the temperature when -1C outside. I'd like the house warm even at -5C external temperature (+20% oversize) and some headroom for warming the house up in an acceptable (<1hr) timeframe. (+25% again) A 14kW boiler will also cycle - everything will at...

No low opinion of heating engineers Tony, nor those who chose vocational rather than academic. Its the RGIs (especially the fast-track course/van with name brand on the side type) who think that their gastec cert qualifies them to design heating systems that wind me up. The big question I had...

They will help. ;) And remind you to get building control in to inspect it. And point out that nobody who DIYed it correctly has ever been prosecuted for not having building control in to inspect it. And tell you which privatised piece of CEGB you need to call to get them to inspect and...

Exactly that Dan. A pair of boilers on 130m^2 to replace the two existing boilers. (and make the 3rd gas heater redundant/decorative) Two? One open vent gas system boiler and indirect cylinder and one unvented instantaneous electric boiler for the 2nd shower. Both pretty ****ty. Plus that gas...

Location Sutton Coldfield; advice and quotations for the gas work and commissioning from competent persons - welcome. Being an RGI/member of competent persons scheme means nothing about their ability to specify a heating system though; the overwhelming majority are just plumbers with gas...

Evening, Kid brother is after a new heating system and he's asked me for help speccing it. I'm after a sanity check here! The house is a 130m^2 Wimpey house built in the late 1980s. Nominally insulated cavity wall construction with dabbed plasterboard, but the detailling is rubbish and...

Do you need the switch readily accessible? In the event that the washing machine throws a hissy fit, can you not just flip the MCB?

Switching live and earth isn't something that you'd worry about unless you were a complete and utter spacca though, and failing to provide RCD protection on kitchen circuit falls is cost cutting to the point of being criminal. Correct cable sizing, ring mains that aren't rings on all three...

Does an induction hob with an on/off switch even need a separate isolator switch? Boilover or overheat and the "supervisor" electronics will shut itself off anyhow. Else walk away and flip the MCB, or the main isolator if you need both poles isolated? Both are capable of full load disconnect...

It has one. And it's supposed to protect the gearbox. :roll: It's not the first time I've maimed that drill to be fair - the clutch died under warranty whilst screwdriving. Something of a disappointment compared with the old Black & Decker that it replaced. (black case, 850W or so, with...

Doh! I guess patience will be tested... I've been using the mexco diamond cores from toolstation rather than tungsten carbide (on that makita 2070) and if your'e slow/careful the combo will do the job. Don't hold the drill too firmly or run it too quickly though; that's the mistake I made...

Went halves with my brother on with this: http://www.toolstop.co.uk/makita-hr2611ftx2-3-mode-sds-plus-avt-rotary-hammer-drill-with-quick-change-chuck-p16774 Drill that's rated for cores (only 80, but 110 should be ok if care taken) 3-mode (chisellign only) for the chimney 3-jaw chuck for...

JCB Li-Ion drill from B&Q. 5 year guarantee. Two 1.5 Ah batteries, and £90 if you buy on a wednesday with grandad (over 60) else £100. The charger is slow - but you do get two batteries. The torque does drop off as the battery goes flat - I got one staircase (60 6mmx120 mm screws driven...

Hello, I have a large chimney that needs to come down - wants a kango or similar. I have a number of cores to drill, up to 162 mm through engineering brick to both cavity leaves - did a couple with a standard DIY mains drill with lots of cool down time, but then ragged the gearbox to...

Ikea will sell you *everything* to go with their products and then some. Far far better thought out than the DIY sheds. Nowhere* stocks anything useful and first class post/courier is cheaper than driving or the bus. Online all the way... *except toolstation, which has pretty much...

No zones. You would have to buy two and fit a second zone valve, setting up with boiler so that either one calls for heat the boiler fires. I'm considering that when extending the house - living/evening zone plus bedrooms/ensuites zone, timed differently/set differently. Might be easier to...

You can do the same with the 'owl' for 99 notes (ask em for the ecobuild discount) Plus your missus or mother can both understand the three buttons on the panel AND can't **** it up without the pc/smartphone login and password. other understands 'make it warmer now' 'i am out revert...