Galvanised Flue Pipe?

[Guest guest]

I was always under the impression better to use black pipe indoors instead of

the galvanized. With the light gauges used in normal stove pipe, heat effects

the galvanizing pretty quickly. I seem to remember hearing that if you did use

galvanised indoors, to get it really hot and let it cook for a while while

having all the windows and doors open, for good ventilation, everyone being

outside during. After a bit, the shiny galvanizing becomes dull, and I was

told that once it becomes dull, whatever is going to go off into the

atmosphere

is gone.

 

The 4" size seems awfully small. Manufacturers usually specify what size to

use, but I have never seen stovepipe less than 6 ".

 

"Samba (das) SDG (Mauritius)" wrote:

 

> Can anyone tell me if there would be a problem using 4" Galvanized pipe with

> a wall thickness of about 4mm, for a flue pipe on a wood burning stove? I

> plan to have an elbow of the top of the stove, run the pipe horizontally, or

> maybe at a slight incline for about 5 feet, and then another elbow, to a

> vertical pipe which extends about 12' high.

>

> I am worried that maybe heat would have an adverse effect on the

> galvanization, and that maybe there might be some noxious fumes. Does anyone

> know about that?

>

> Thanks Prabhus.

>

> Your Servant

> Samba das

[Guest guest]

In a message dated 5/28/00 6:40:40 AM US Mountain Standard Time,

Madhava.Gosh.ACBSP (AT) pamho (DOT) net writes:

 

>

> I was always under the impression better to use black pipe indoors instead

> of

> the galvanized. With the light gauges used in normal stove pipe, heat

> effects

> the galvanizing pretty quickly. I seem to remember hearing that if you did

> use

> galvanized indoors, to get it really hot and let it cook for a while

> having all the windows and doors open, for good ventilation, everyone

> being

> outside during. After a bit, the shiny galvanizing becomes dull, and I

> was

> told that once it becomes dull, whatever is going to go off into the

> atmosphere

> is gone.

>

> The 4" size seems awfully small. Manufacturers usually specify what size to

> use, but I have never seen stovepipe less than 6 ".

>

> "Samba (das) SDG (Mauritius)" wrote:

>

> > Can anyone tell me if there would be a problem using 4" Galvanized pipe

> with

> > a wall thickness of about 4 mm, for a flue pipe on a wood burning stove?

I

> > plan to have an elbow of the top of the stove, run the pipe

horizontally,

> or

> > maybe at a slight incline for about 5 feet, and then another elbow, to a

> > vertical pipe which extends about 12' high.

> >

> > I am worried that maybe heat would have an adverse effect on the

> > galvanization, and that maybe there might be some noxious fumes. Does

> anyone

> > know about that?

> >

> > Thanks Prabhus.

> >

> > Your Servant

> > Samba DAs

 

Haribol Samba

Yes! You can use four inch galvanized 4 mm for a flue depending on the

manufacture and the size of the stove, and if you are not venting any other

thing on the same pipe..... But no smaller unless the manufacture specifics.

The difference between black and galvanized is how long it lasts. Black pipe

tends to rust out relatively quickly. Even fairly small holes can release

the products of combustion which is CO2 and carbon Monoxide and water into

your home and do some damage to small children as it seems to rise up into

the air and then fall and "puddle " on the floor where the little ones hang

out. It is heavier than air! It could be lethal in tightly made homes. In

the USA where the homes are now being built very tightly so outside air

cannot get in, proper venting has become critical both for the flame and the

health of the inhabitants. Do you need the stove for heating and to cook?

There is a device that you can have made, I have never seen them commercially

available that is called a warming box. That fits around your vent pipe that

allows you to keep food warm or to raise bread. it is a hinged box that you

can clamp around the vent pipe, the front door opens and you can place your

stuff in there. The box must be well insulated however to hold heat. To get

"free hot water" wrap coils of copper pipe snugly around the flue pipe and

then run the water to a well insulated container with a water tap at the

bottom, the top of the coils have a container that is full of water that

slowly drips into the copper tubing the smaller the tubing the hotter the

water gets, with in reason. There tubing shouldn't be smaller than 1/2 a MM

or 1/4 inch. Depending on where the galvanized is manufactured the

galvanized can "burn " but unless the fire in your stove is very very hot it

won't do much damage to you. When welders have to cut galvanized to protect

himself all he has to do is drink milk before he starts to cut the holes with

a torch and have a 1/2 cup of milk every fifteen minutes or so to keep his

stomach lined so the "poison fumes " cannot do him damage. Galvanized fumes

which are a nasty smelling, greasy smoke, that make it to the stomach almost

instantly end up in your blood and your tissues. The oddly enough lungs seem

to not absorb very much of the galvanized "poison." I would worry more about

getting CO2 in my house than about galvanized getting into my blood. In the

USA for instance you are required to have a double wall thickness flue pipe

every where it penetrates the wall or roof so the hot pipe can't burn your

house down and also require a one inch hole all around the vent pipe as it

penetrates the ceiling and roof. A vent shouldn't be more than a foot above

the highest part of the roof. So if you have a steeply pitched roof and the

ridge of the roof is say one meter or three feet higher than where the vent

pipe is the vent pipe must be one foot or 1/3 of a meter higher than the roof

top. (four feet or one meter and a third long) Depending on the prevailing

winds if your vent is sheltered too much the products of combustion may not

be able to get out of the pipe that is why they want it above the highest

part of the roof line.

Does this help?

Carol

[Guest guest]

Dear Samba:

 

Please accept my humble obeisances. All glories to Srila Prabhupada.

 

For what ever it's worth, I have read numerous warnings about using

galvanized pipe indoors. The explanation is that whenever zinc is heated, it

releases toxic fumes. Zinc is the primary element used in galvanization.

Therefore black pipe is manufactured for indoor use. As far as I am aware,

there are some things burned off in the initial heating of a galvanized pipe

and the appearance of the pipe changes, but the zinc will continue to emit

toxic fumes whenever it is heated. I hope this meets you in good health and I

beg to remain,

 

Your servant,

Taraka dasa

 

In a message dated 5/28/2000 12:02:24 AM Eastern Daylight Time,

Samba.SDG (AT) pamho (DOT) net writes:

>

> Can anyone tell me if there would be a problem using 4" Galvanized pipe

> with

> a wall thickness of about 4mm, for a flue pipe on a wood burning stove? I

> plan to have an elbow of the top of the stove, run the pipe horizontally,

or

> maybe at a slight incline for about 5 feet, and then another elbow, to a

> vertical pipe which extends about 12' high.

>

> I am worried that maybe heat would have an adverse effect on the

> galvanization, and that maybe there might be some noxious fumes. Does

anyone

> know about that?

>

> Thanks Prabhus.

>

> Your Servant

> Samba das

>

[Guest guest]

In a message dated 5/28/00 6:20:23 PM US Mountain Standard Time,

Tarakadas (AT) aol (DOT) com writes:

 

>

> Dear Samba:

>

> Please accept my humble obeisance's. All glories to Srila Prabhupada.

>

> For what ever it's worth, I have read numerous warnings about using

> galvanized pipe indoors. The explanation is that whenever zinc is heated,

it

>

> releases toxic fumes. Zinc is the primary element used in galvanization.

> Therefore black pipe is manufactured for indoor use. As far as I am aware,

> there are some things burned off in the initial heating of a galvanized

pipe

>

> and the appearance of the pipe changes, but the zinc will continue to emit

> toxic fumes whenever it is heated. I hope this meets you in good health and

> I

> beg to remain,

>

> Your servant,

> Taraka dasa

Dearest Taraka

The Uniform building code of the Southwest region of the USA no longer

permits the use of black iron vent piping inside of the residence. While

Galvanized pipe when heated till it is cherry red does produce a toxic fume

it is not toxic as a vent pipe the pipe does not get that hot. As for

initial "burning off of the toxins" the pipe is coated in an oily substance

when it is manufactured and when the vent is heated up what ever residue that

is still there is burned off. On the other hand black vent piping was used

for years and not too many homes burned down or all the occupants woke up one

morning dead because of carbon monoxide poisoning. It is even difficult to

find black vent piping in the USA. Some hardware stores carry it but few if

any large professional supply houses carry it. Black vent piping is like "S"

traps now illegal in every state in the USA banned for better than thirty

years, still, you can find them in every supply house in the country.

This has all the ear marks of another great controversy like that of to

vaccinate or not to vaccinate. Where the controversy raged that it was

better to die than to take a substance into your body that might have adverse

side effects. I had angry emails from parents saying Krishna would protect

their children from Tents, polio, small pox and a host of vaccination a not

to encourage endangering lives by preventing.

Carol