Boiler tube cleaning brush sizing? | Hearth.com Forums Home

Author: Franke

Jun. 30, 2025

Hardware

Boiler tube cleaning brush sizing? | Hearth.com Forums Home

EMDDIESEL

New Member
May 4,
5
New Hampshire
  • Dec 24,
  • #1
I am looking to get some new tube cleaning brushes for my Greenwood Aspen 175 Boiler. Normally i would simply contact Pro Fab and ask them this question but alas they no longer exist. The brush i have no is so badly worn i cannot accurately asses what the diameter was originally.
That being said, my flue tubes are 1-3/4 ID. What diameter cleaning brushes should i be buying? Obviously for the brush to be effective it needs to be larger than the tube interior diameter. But how much larger? All the online retailers i have found that sell tube cleaning brushes seem to be staffed with people who cannot answer this question. Any help would be appreciated. Thanks!

dogwood

Minister of Fire
Mar 22,
825
Western VA
  • Dec 24,
  • #3
EMDiesel, are you scouring the tubes with the brush by hand, or are you using the brush on a rod powered by a drill?

Mike

EMDDIESEL

New Member
May 4,
5
New Hampshire
  • Dec 24,
  • #4
I was unable to find any manufacturer or dealer offering a brush in that size. Do you know of a source for a brush in that size?

EMDDIESEL

New Member
May 4,
5
New Hampshire
  • Dec 24,
  • #5
EMDiesel, are you scouring the tubes with the brush by hand, or are you using the brush on a rod powered by a drill?

Mike

Presently by hand, but would love the ability to do both. The first set of tubes clean easily with a brush as their is little to no creosote. The second pass however has very heavy creosote that quickly builds up. I often run a 1-1/2 Selfeed bit with an extension down each of those tubes and while the bit will not clean close to the bare metal of the tubes, it's removes more then enough to allow a brush to get worked through. But the only brush i have is getting very deformed and that is why i need a replacement and welcome any other suggestions.

Bad LP

Minister of Fire
Nov 28,
2,001
Northern Maine
  • Dec 24,
  • #6
I've seen many brushes in all sorts of sizes at MSC Industrial Supply.

EMDDIESEL

New Member
May 4,
5
New Hampshire
  • Dec 24,
  • #7
I've seen many brushes in all sorts of sizes at MSC Industrial Supply.

Yes, i have been to that site, Granger and half a dozen other sites that carry boiler brushes as well as two manufacturers. I have yet to see any brush in a size 1-63/64. I even called a supply house and he said no part number exists from any brush manufacturer he carries in that size.

maple1

Minister of Fire
Sep 15,
11,083
Nova Scotia
  • Dec 24,
  • #8
Methinks the 63/64 comment was a bit of friendly chain yanking....

Fred61

Minister of Fire
Nov 26,
2,445
Southeastern Vt.
  • Dec 24,
  • #9
If I purchase a brush that is a little oversized I just grind it down with my bench grinder. I have a wide small grit wheel on my sharpening grinder that makes short work of the task.

dogwood

Minister of Fire
Mar 22,
825
Western VA
  • Dec 24,
  • #10
There are two inch inside diameter heat exchange tubes on my boiler. I clean them with a two inch diameter boiler brush. The brush screws onto a 42" fiberglass shaft, turned by a drill. The brush easily moves around inside the tubes at high rpm's and quickly scours them clean.

The hand held steel brush that came with our Tarm boiler measures three inches in width. It is basically flat with steel bristles sticking out if it's shaft on either side. It was effective in cleaning the two inch tubes, but a pain to turn inside the tubes by hand.

I thought about getting a wider 2-1/4 inch boiler brush to use with the drill. But the two inch works fine, without need for the extra aggressiveness a wider diameter would bring. It's easier to turn in the tube and I didn't want to chew up the tubes either.

The two inch circular steel boiler brush fits into a standard 1/2" fitting on rods I had previously purchased from a local fireplace and wood stove shop. I also use the same fiberglass rods with six and eight inch brushes to clean out the boiler and fireplace chimneys.

Mike Last edited: Dec 25,

salecker

Minister of Fire
Aug 22,
2,436
Northern Canada
  • Dec 25,
  • #11
Hi Mike
Any chance you could take a pic of the brush you use and post it ?
Thanks

jebatty

Minister of Fire
Jan 1,
5,796
Northern MN

dogwood

Minister of Fire
Mar 22,
825
Western VA
  • Dec 25,
  • #14
Salecker, here's a picture of one I copied off Ebay under the "boiler brush" heading. The brand is Mill-Rose. They also make them without spaces between the spiral rows of bristles, see http://www.millrose.com/twisted-wire-brushes_flue-boiler-tube-brushes.php
Last edited: Dec 25,

Bad LP

Minister of Fire
Nov 28,
2,001
Northern Maine
  • Dec 25,
  • #15
Methinks the 63/64 comment was a bit of friendly chain yanking....

I was going to write 1.984.

Bob Rohr

Minister of Fire
Jan 9,
1,265
SW Missouri
  • Dec 25,
  • #16
If the tube ID is 1-3/4, I think that is the size brush you need. If you oversize you end up bending or crushing the staples that they use to build them.

I think getting the large deposits first as suggested then the brush to polish it out. I find increased rotation speed is better than oversizing the brush.

Mike Fromme

Burning Hunk
Apr 18,
221
Maine
  • Dec 25,
  • #17
Methinks the 63/64 comment was a bit of friendly chain yanking....
You got me..it's really closer to 1-31/32"

https://www.blackwoods.com.au/part//brush-boiler-tube-sit-50mm-x-12-bsw

Mike Fromme

Burning Hunk
Apr 18,
221
Maine
  • Dec 25,
  • #18
Here's what I use... Don't really know what size the boiler tubes in my boiler are though. Just jam it in and spin it as fast as my cordless will go. Takes about 30 seconds per tube once a year.

http://t.harborfreight.com/7-piece-grinder-brush-kit-.html


dogwood

Minister of Fire
Mar 22,
825
Western VA
  • Dec 25,
  • #19
Mike Fromme said:

Takes about 30 seconds per tube once a year.

Don't know how you get away with cleaning those tubes only once a year Mike. The Tarm Solo Innova manual says they need to be cleaned when flue temps creep over 500F, or twice a month, whichever comes first I suppose. If I go over two weeks when burning twice daily in the winter, the flue temps start getting over 500F in right about that time frame, and then keep creeping up. After cleaning the tubes the flue temps drop right down to where they belong in the lower 400's. I'm curious what kind of flue temps you're seeing.

I'd love to not have to clean those tubes and turbulators so often. It's always extra time and mess when added to weekly ritual of cleaning the firebox and gasification chambers.

Don't mean to be side-tracking your thread EMDDIESEL. Hope you all had a good Christmas.

Mike Last edited: Dec 26,

velvetfoot

Minister of Fire
Dec 5,
10,202
Sand Lake, NY
  • Dec 26,
  • #20
What happens if something, like the brush, breaks off in the tube? Can you push it out?

Mike Fromme

Burning Hunk
Apr 18,
221
Maine
  • Dec 26,
  • #21
On mine at least there is an ash clean out door below the tubes. So if the brush were to break off one could just push it down and out.


Truth be told I haven't cleaned the tubes in over a year. I use a magnetic flue pipe thermomenter. Runs at ~260 when I clean the tubes. Right now it's at ~300 mid burn. I'll clean them when I start seeing 350.

What is Tube Brush / Boiler Tube Cleaning Brushes

Today, let us discuss the Tube brush usually called as boiler tube cleaning brush. The tube brush is made up of metal, nylon, or abrasive nylon bristles. It is also known as the Brush Boiler. They are used for tubes, threads keyways, openings, etc. Heavy-duty design provides the most powerful brushing action and long service life. These brushes achieve maximum efficiency when completely chucked in handheld equipment and cullet-equipped drill presses.

For more information, please visit FUYI BRUSH.

A test tube brush, also known as a test tube cleaner, is a specialized cleaning tool designed for cleaning test tubes effectively. It comes in various types, including stripping brushes and spiral brushes, each catering to specific cleaning needs. The main function of a test tube brush is to remove residue, stains, and contaminants from the inner surfaces of test tubes, ensuring accurate experimental results. Additionally, test tube brushes find utility in other areas, such as boiler cleaning, where a boiler cleaning brush with a spiral design is employed. In essence, a test tube brush is an indispensable instrument for maintaining laboratory equipment and facilitating precise analyses.

For optimum protection and efficient soot removal, a boiler brush has to be sturdy and heat-resistant. They are also called tube brushes or cylinder brushes. They are available in diameters as small as 1⁄8″ and as large as 2″, in a variety of materials, and with long, versatile but durable handles.

Industrial brushes come in all shapes and sizes, so you have to decide how large your brush needs to be. You can always get it personalized if you need a specific custom length. In no time at all, we specialize in delivering premium-quality custom orders sent to you. When thinking about your brush, make sure to consider it.

Length The length involves the head of the brush down to the end of the handle if you’re buying a tube brush. If you’re buying an industrial brush strip, the length of the brush itself would mean that.

Diameter/width – You can need a tube brush, industrial roller brushes, or spray suppressant strips, depending on your application. Each of these brushes has a particular width or diameter that will influence the brushes’ application.

Shape – Are you after a cylindrical brush? Or maybe a round brush? Everyone may rely on their intended use of the body of your industrial brushes, so make sure you know what your job needs.

Suggested reading:
How to differentiate abrasive discs | Stayer
Flux-Cored Arc Welding (FCAW) Explained - Fractory

Contact us to discuss your requirements of boiler cleaning brushes. Our experienced sales team can help you identify the options that best suit your needs.

Attachments – Some brushes use wooden, plastic, or metal handles which are handheld designs. However, the brush is often meant to be connected to a computer, car, or lock. You need to make sure the accessories you have are suitable for the planned use of the brush.

What is Test Tube Brush?

A test tube brush, also known as a test tube cleaner, is a specialized cleaning tool designed for cleaning test tubes effectively. It comes in various types, including stripping brushes and spiral brushes, each catering to specific cleaning needs. The main function of a test tube brush is to remove residue, stains, and contaminants from the inner surfaces of test tubes, ensuring accurate experimental results. Additionally, test tube brushes find utility in other areas, such as boiler cleaning, where a boiler cleaning brush with a spiral design is employed. In essence, a test tube brush is an indispensable instrument for maintaining laboratory equipment and facilitating precise analyses.

Why use Boiler Tube Cleaning Brushes?

The efficiency of the tubes can be decreased by using dirty tubes. Our Wire Boiler Tube Brushes are designed to clean tubes and holes vigorously internally. Good for general cleaning and rust and scale removal. Ideal for removing, cleaning, and deburring internal keyways and grooves from carbon.

The Boiler Tube cleaning brushes are made from 30 gauge steel wire. These brushes are suitable for drill presses and power tools at slow speed or as well as hand tools.

How to choose the right tube brush?

It is usually better to align the application with the brush. For ferrous metal tubes, you can use the Steel Boiler Tube brush. We also have a variety of brass and nylon tube brushes, plus we can create a brush customised to suit your requirements. Our specialty is Short Run Production.

This was all you needed to know about the tube brush. Hope this blog was helpful in knowing what a tube brush is.

If you are looking for more details, kindly visit twisted in wire brushes.

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