Am I expected to be competant in Extractor fan installs as a bs7671 electrician?

[Murdoch]

As far as im aware, only my drill drivers have a clutch.......are you telling me one is usefull when blasting through with an sds? never considered tbh......

Blasting through using a core drill ?

 

[Leigh Winspear]

Blasting through using a core drill ?

dear lord you are one of those sometimes arent you.....

 

[NozSpark]

If you’re coring a hole one of these is a great investment,,, mine can take a 152mm core drill (without the brush insert) and leaves hardly any dust

 

[Leigh Winspear]

If you’re coring a hole one of these is a great investment,,, mine can take a 152mm core drill (without the brush insert) and leaves hardly any dust

fantastic invention. I bought one of these recently for my 4" makita angle grinder. I need to set it up for next week.......Didnt know about core drill versions........................do now!

 

[binky]

If you’re coring a hole one of these is a great investment,,, mine can take a 152mm core drill (without the brush insert) and leaves hardly any dust

Didn't know they existed

 

[Leigh Winspear]

Found this -

https://www.vent-axia.com/range/internal-fit-wall-kit
not sure about price of these though, and still not sure about connecting two ensuite extractor fans to same outlet. in my little head maybe each fan needs a one way/block valve to prevent air ingress when only one is working?

 

[roys]

Found this -

https://www.vent-axia.com/range/internal-fit-wall-kit
not sure about price of these though, and still not sure about connecting two ensuite extractor fans to same outlet. in my little head maybe each fan needs a one way/block valve to prevent air ingress when only one is working?

You do get little flap valves to prevent back draugh. £6.99 from Amazon

 

[truffle pig]

Pilot bit is not needed once you have the hole started. Round here we have quite a few cob walls, so could hit slate or granite stones, or both. Most houses are also rendered - a by prouduct of the China clay indusrtry means lots of silver sand was available cheap, and rendering is popular becuase of the rainfall. So you start off hard render, then hit lumps of granite / slate and ancient mortar, then hard render again - right pain in the neck, and easier hit from both sides! And just for fun, halfway through the wall a lump of granite falls down and jams the core..

You must be Cornwall way?

 

[binky]

You must be Cornwall way?

Plymouth

 

[Leigh Winspear]

Plymouth

just to end this post. I had a lady come to a property from vent axia and do free onsite training.
With my cpd certificate earned, and part f read, I am boldly claiming to be trained in intermitant extractor fan installation.............The builder and building inspectors are happy and I no longer need to pay £500 for a airflow tester that needs annual calibration................

 

[Leigh Winspear]

You do get little flap valves to prevent back draugh. £6.99 from Amazon

Since learned every single room fan needs its own ducting to prevent cross contamination. thanks anyhow........

 

[Murdoch]

What a load of nonsense

 

[binky]

Since learned every single room fan needs its own ducting to prevent cross contamination. thanks anyhow........

I have two fans on one duct, it works fine....

 

[Andy™]

I have two fans on one duct, it works fine....

lots of houses have no earth, no RCD's, BS1202 fuses. works fine

 

[binky]

lots of houses have no earth, no RCD's, BS1202 fuses. works fine

Yep. I also have anti back draft shutters in the ducting.

 

[apprentice87]

Most SDS drills have a clutch. I discovered mine has one when a long drill bit (not a core) jammed and I thought it had stripped the gearbox, but it was just the clutch slipping so the drill was not wrenched out of my hand.

I have a Hitachi one and mine certainly has.

john..