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Thread: Which Ozito?
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14th October 2011, 09:56 AM #1zelk
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Which Ozito?
I am about to demolish my 70 year old bathroom and am looking for a power tool to remove the tiles with the cement render which is about 20 mm thick. I tried with a hammer and chisel and the going was slow. The render is pretty tough.
I would like to know if either Ozito's would do the trick without terribly damaging and dislodging the brickwork. I also need to remove the screeding on the floor, which I understand is tougher. The first has 3.8 joules and the second 5 joules impact energy.
Also, what width chisel is best for the task?
Rotary Hammer Drill RHR-850 | Power Tools | Ozito Australia New Zealand
Rotary Hammer Drill OZRH1500WAK | Power Tools | Ozito Australia New Zealand
Regards,
Zelk
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14th October 2011 09:56 AM # ADSGoogle Adsense Advertisement
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14th October 2011, 10:31 AM #2
G'Day Zelk,
The more punch you have the easier the job as the tool is doing all the work for you.
http://www.ozito.com.au/10-kg-demolition-breaker-
Cheers, Crowie
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14th October 2011, 10:36 AM #3.
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I'll second crowie's decision.
You'll be battling to hire one for the price you can buy one. I bought an Ozito hammer drill about 6 years ago and it has done many tasks and is still going strong.
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14th October 2011, 10:55 AM #4
Just a thought.
Are you going to re-tile the floor.
If yes, then removing the existing surface is not necessary if it is solid and sound.
We have faced the same reno and were advised by the tiler to leave the old tiles - he tiled over them. The glues they have these days are so good that the lifting is not necessary. We have been very pleased with the result and it saved hours of dirty labour.
Cheers
SG.... some old things are lovely
Warm still with the life of forgotten men who made them ........................D.H. Lawrence
https://thevillagewoodworker.blogspot.com/
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14th October 2011, 11:27 AM #5zelk
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Thanks guy,
As mentioned, I started removing the render and tiles with hammer and chisel (60 mm wide) on a section of wall that was to the double-brick wall cavity and so there was no render on the opposite side. This section of wall was subject to seasonal movement and the mortar between the bricks had cracked. I noted displacing the bricks while removing the render. I was wondering how many joules of impact energy I was producing. I will probably have to re-brick this section.
Is there a certain chisel width to use with the powertool, I have note 15 or 30 mm wide bits.
I was also considering using an angle grinder with a diamond blade to score the full depth of the render in a grid fashion, to allow the render to come off in sections. I know it will slow the process, but I want to disturb the brickwork as little as possible, any comments about this?
Zelk
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14th October 2011, 11:36 AM #6zelk
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14th October 2011, 11:40 AM #7.
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14th October 2011, 11:48 AM #8zelk
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11th November 2011, 11:30 AM #9zelk
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Well, I ended up buying the 1500 watt Ozito version. I found it perfect in terms of power to weight ratio particularly for removing 25 mm hard render of the bathroom walls. As mentioned before, the mortar between the bricks was soft, apparently the Ozito did not disturb it.
For knocking of bricks and removing 60 mm thick screeding, you are definitely better off with a jack hammer. When working around pipes you have more control with the rotary hammer drill.
It was great purchase, especially as they are now on special at $109.
I also purchased a curved 30 mm wide Bosch chisel which was ideal for the application.
Interestingly, a few forumites has suggested tiling over the existing floor tiles, in my case, it appears that it has already been done.
regards,
Zelk
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