Channeling Through Breeze Block

[tandh]

how hard and how would i channel out a straight line section in breeze block to run radiator pipes down?

[douglas9401]

Hire a chasing machine, fairly easy if a bit dusty.

[tandh]

thanks douglas, but they are £100 for the day, would a light breaker do it? or will it go out of control with a small lady trying to control it?

[Old_Geezer]

Hammer and chisel ?

Breeze block is fairly soft, not like proper brick.

[bhg481]

It all depends what sort of breeze block it is. When my nephew was building his extension he used a wood-saw to cut the breeze blocks used for one wall. When we had an extension built the wall was load-bearing and required much stronger blocks.

[douglas9401]

No problem:

http://www.screwfix.com/p/energer-erb651grd-850w-angle-grinder-230-240v/3581h#product_additional_details_container

[Oldred]

Whatever method you decide on be absolutely certain that there are no cables which could be live in the area you will be cutting through.

[tandh]

douglas, you're brilliant, thank you so much

@old geezer and divebudy, thank you for your suggestions too, but they have just reminded me of my ex having a nightmare trying to do this in a wall in my kitchen for some wires so i think a machine is gonna be a must for me.
@oldred, thank you, luckily i put the plasterboard up so i know there's nothing behind it

[tandh]

@ douglas, do you think i could use that to dig out a couple of holes in concrete for fence posts? i'll love you even more if i can

[douglas9401]

It'll depend on the depth of the concrete I suppose, tandh, but it'll give you a good start and clean cuts at the surface. Have fun. :)

[alavahalf]

Sometimes I wince at the advice offered on here .. please oh please, a grinder runs at 20,000rpm, it is not a tool that I would advise anyone to try out without some form of training or tuition.
Whatever you do with a grinder do not reach into a hole with it ... I know someone who only just survived a grinder incident when trying to cut posts out. He was just helping someone out until the grinder got hold of his sleeve and severed everything on his left wrist, he said he could see the scrortching on his bones before the blood arrived. He said it was quite strange after the accident, he watched the air ambulance land and couldn't hear it ...
He is now known as the 'one armed bandit'.

[RATTER15]

I agree with alavahalf, I saw a guy nearly severe a leg with an angle grinder, rushed off in an ambulance, I doubt they saved his leg! Nearly as dangerous as chainsaws!

[douglas9401]

From the link: No load speed 12,000 rpm.

It's a small electric grinder, not a Stihl saw. I daresay the average, sensible adult will manage without troubling the emergency services.
Just follow the instructions, especially those relating to safety.

[tandh]

a little update for anyone wanting to know:

as I managed to cut my finger using a tape measure, I've decided not to have a go lol, thanks for all the advice though