Running dryer ducting through wall

[Chuzie]

I need to cut a hole in a wall to run the vent for my dryer. The wall has cinder block on interior and brick on exterior.

What tools would be best suited to cut a hole for a standard ducting vent?

Sent from my GS3 on Cyanogenmod with the older / better version of Tapatalk!

 

[PoorOwner]

you can get a diamond or carbide grit hole saw bit. It can be expensive beyond 4" size. Get a little larger than the vent size. I think dryer is usually 4" vent.

For example I bought a Lenox carbide grit to cut through stucco 3" was around $22. Add water to keep dust to minimum

 

[Chuzie]

Ya, those are expensive. Maybe I can rent something cheaper. Thanks for the idea.

Sent from my GS3 on Cyanogenmod with the older / better version of Tapatalk!

 

[augustus]

yeah, I rented the big drill and hole saw bit from home depot when I punch through the cinder block for pvc pipe from furnace, i don't recall how much it costs but I do think it was worth it.

 

[75gmck25]

I rented the big drill and hole saw from the local rental place to go through my brick wall into the basement. I think the hole saw they carried was about 4 1/4", which ft a dryer vent with a little space left over. Since the rental was fairly expensive, I also rented a 2 1/4" hole bit and put in a hole in for my PVC sump pump pipe at the same time.

I considered just buying the large bit, but hole saws for concrete are very expensive in that size. I also doubt that my 1/2" drill would have worked very well trying to drive a bit that size. The large rental drill was heavy and hard to handle, but made quick work of going through the wall.

Bruce

 

[firworks]

It took a while but I did one last year with a Bosch Bulldog and a Bosch Speedcore bit.

http://www.amazon.com/dp/B007IS0200/?tag=atomicindus08-20
http://www.amazon.com/dp/B00EMFOOGA/?tag=atomicindus08-20
http://www.amazon.com/dp/B00EMFOOE2/?tag=atomicindus08-20

I wouldn't recommend it for drilling a lot of holes, but for doing a single dryer vent it worked just fine. That Bulldog punched way above it's weight and did the job.

I actually took video of it thinking I'd make a video for my YT channel but I never ended up editing it together.

 

[Chuzie]

Thanks guys. Now I have some options to weigh.

Sent from my GS3 on Cyanogenmod with the older / better version of Tapatalk!

 

[tab2]

It took a while but I did one last year with a Bosch Bulldog and a Bosch Speedcore bit.

http://www.amazon.com/dp/B007IS0200/?tag=atomicindus08-20
http://www.amazon.com/dp/B00EMFOOGA/?tag=atomicindus08-20
http://www.amazon.com/dp/B00EMFOOE2/?tag=atomicindus08-20

I wouldn't recommend it for drilling a lot of holes, but for doing a single dryer vent it worked just fine. That Bulldog punched way above it's weight and did the job.

I actually took video of it thinking I'd make a video for my YT channel but I never ended up editing it together.

Do you remember which model you used? I am about to do the same thing, but only a 3" hole.

How long do you remember each hole taking?

 

[firworks]

Do you remember which model you used? I am about to do the same thing, but only a 3" hole.

How long do you remember each hole taking?

It was a Bosch 11224VSR 7/8-Inch SDS-Plus Bulldog Rotary Hammer. I got it for... 80$? on eBay at some point in the past. I'll try to find the video from when I drilled it. It did feel like it took a fair bit of time but I was on a ladder leaning at an awkward angle and really couldn't put much force into it at all.

 

[akalian]

Why not drill lots of smaller holes with a 3/8" - 1/2" carbide rotary hammer drill bit. The hammer drill with a small bit will punch through the cinder block in a jiffy.

Mark out a 4-1/2" circle and drill a bunch of small holes, and knock out the center with a hammer. Might take a little grinding to knock off the points left, but tapping them with a hammer would probably be the easiest way to go.

If you don't have a hammer drill you can probably rent one at Lowes or Home Depot for $30-$40 and the 1/2" bits aren't that expensive if you have to buy any. One would probably be enough, but it wouldn't hurt to have a spare.

 

[Chuzie]

I ended up using a 1/2 bit with my hammer drill. It wasn't long enough to go through everything so had to do both sides. Used the air chisel to knock it out. Worked great. Now my garage isn't a sauna!

Thx yall.

Sent from my GS3 on Cyanogenmod with the older / better version of Tapatalk!