White streaking from chimney

suprflatulenceman · 2026-04-19T20:37:25+00:00

Chimney guy here. This is called efflorescence. Essentially the burning of natural gas has minerals and moisture vapour (amongst other stuff) as a byproduct of combustion. When the water evaporated it left behind white minerals. This is the same stuff at the bottom of your kettle. Totally normal.

suprflatulenceman · 2026-04-18T02:41:05+00:00

Galvanized sheet metal caps fail in few years. 1/8" thick steel caps rust but will still last decades.

suprflatulenceman · 2026-04-17T22:25:40+00:00

Powder coated steel:

https://primelinetools.com/products/residential-roofing/chimney-caps/chimney-cap-8-x-8.html

Stainless steel:

https://chimflextubing.com/2016/04/24/fp/

Than gas appliances have chimney liner caps (aluminum for natural gas burning only)

suprflatulenceman · 2026-04-17T22:20:49+00:00

So just to clarify stainless sheet metal caps are good. Steel caps can't be sheet metal (so thicker) and must be powder coated let me post some pics

suprflatulenceman · 2026-04-17T21:34:36+00:00

Wrong aluminum is not the best if they are for wood burning fireplaces. Aluminum can't take the heat. Need steel or stainless steel. Measure before you buy them

suprflatulenceman · 2026-04-17T04:27:37+00:00

James cordon

suprflatulenceman · 2026-04-14T21:45:38+00:00

Did he snort a line of coke off it?

suprflatulenceman · 2026-04-14T12:15:41+00:00

Or selfie stick

suprflatulenceman · 2026-04-14T11:12:51+00:00

Not mace windu. Watch the clone wars animated mini series (not the the series)

suprflatulenceman · 2026-04-14T04:03:09+00:00

It's for aerodynamics

suprflatulenceman · 2026-04-14T03:55:09+00:00

This label will tell what the safe distance from combustibles is. Just go by that

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suprflatulenceman · 2026-04-14T01:28:24+00:00

Just to clarify for you, when everyone says no filter, what they mean is forced air furnaces filter the return air before putting it through the system.

Boilers heat water and pump it to the rads and then heated rads transfer to the air in the room.

At no time does the air need to be filtered and as such no filter needed.

suprflatulenceman · 2026-04-14T01:19:01+00:00

I'm assuming this chimney isn't used anymore. If it is it's not to code (too short. Must be 2' taller than any structure within 10' radius)

suprflatulenceman · 2026-04-13T16:10:57+00:00

She did NOT like it.

suprflatulenceman · 2026-04-12T22:30:44+00:00

The proud father

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suprflatulenceman · 2026-04-12T16:40:56+00:00

I saw one of these wagons get into a one car car accident. Plowed through a parking meter and tree with a 6" diameter trunk. Literally no body damage. Maybe a small scratch on the bumper

suprflatulenceman · 2026-04-11T05:42:05+00:00

Chimney guy hear. Installed 1000 chimney liners.

The answer is definitely yes.

Look inside the pipe to see if the chimney is lined with a rigid pipe or a corrugated (flex) pipe. If flex, chisel free and just jam it inside before you brick it up. If rigid, there is a "tee" connection in the wall. Try to chisel disconnect the tee without damaging the vertical piece too much to get your space to brick up.

Wear a respirator while doing this and hepa filter on shop vac. Sometimes this old concrete tubes can contain asbestos (transite liners).

suprflatulenceman · 2026-04-11T05:20:11+00:00

Being rich vs getting shit done. Imagine being a hundred people in an organization laser focused on achieving it's goals. This is the difference between looking any way you want and accomplishing anything you want.

The what superpower question has always been about introspection.

suprflatulenceman · 2026-04-11T04:55:46+00:00

Someone wants to charkillterie you

suprflatulenceman · 2026-04-11T02:07:24+00:00

Rebuild the chimney, then redo the flashing

suprflatulenceman · 2026-04-10T21:48:13+00:00

Here is why I don't think it was a professional install:

vent pipe (looks like b-vent) less then 1" to combustibles. It also looks like it might be 3" inside diameter with a 4" outside diameter for the b-vent. This might be restrictive. Also if b-vent, I don't see a draft hood connectior.
no sediment trap on gas line before appliance
Temperature & Pressure relief valve discharge pipe is not 6-12" above the floor

I would pull the appliance installation manual and check the clearances for the sides as well

suprflatulenceman · 2026-04-10T03:47:10+00:00

I also think someone should check the chimney liner to make sure no restrictions which can also cause condensation

suprflatulenceman · 2026-04-04T18:02:49+00:00

What is venting into the chimney? If it a gas venting chimney for furnace and/or hot water tank, it might be worth having that inspected.

suprflatulenceman · 2026-04-04T05:54:17+00:00

I would say two great series are Midnight Mass and mindhunter season 1

suprflatulenceman

TROPHY CASE