Chimney height

[Modthyrth]

Hi all--

I'm ready to pour my foundation and get started on this grand project, but I need to know where to put the pad. Generally, I know where I want it to go, but I have to observe the city's setback regulations. Here in Gilbert, we need to be 5' from the property line for anything 6' tall and under. An additional foot back from the property line for each additional foot of height.

So I'd love to know how tall your ovens are, including chimney height. I know I can obviously modify the chimney design, and everybody's ovens are slightly different. I'm really looking for a sense of the average height. The minimum chimney height to get reasonable draw. We have a fairly big backyard (for the Phoenix area), but I'd like to keep the oven snugged as close to the wall as possible, and stay within code. The plans basically say, "it depends" on this topic, and the materials list gives a 24" to 36" range, but I know I've seen people here build much taller chimneys.

Thanks!

[DrakeRemoray]

Re: Chimney height

My chimney is 8 ft tall. 6 ft overall oven and an extra 2' of chimney.

[Groves]

Re: Chimney height

stunningly beautiful.

[asudavew]

Re: Chimney height

My chimney is 8 ft tall. 6 ft overall oven and an extra 2' of chimney.

If I remember correctly it is actually much bigger.

Where is that picture of you beside it?

[Modthyrth]

Re: Chimney height

Wow, that's a gorgeous one, Drake. Thanks for the height details.

I'm planning an igloo style--forgot to mention that detail in the original post.

[PizzaJNKY]

Re: Chimney height

Now that is an attractive oven.

[nissanneill]

Re: Chimney height

Hi Nikki,
my Pompeii has a rather high chimney, 3 lengths of 8" galvanised flue and it works an absolute treat. No smoke what so ever comes out of the front arch as it is all captured in the vent and is taken up the flue. I have made a spark arrester on top but have never seen fire nor sparks running into and up the flue, so it serves no real purpose. I do however have a large chimney void but a very simple stainless hoosd was made to fit. I even fitted downlights in there which are fantastic and illuminates the whole oven floor.
You can see and read all about it at:

http://www.fornobravo.com/forum/f8/n...-1-a-2005.html

and follow it through.

Neill

[david s]

Re: Chimney height

I once bought a cast iron pot bellied stove that was probably made in China (it was cheap, but good) on pricing stainless flues it was going to cost me more for the flue than the stove, so I opted to get one made of galvanized steel. It only lasted 12 months and I ended up replacing it with heavy duty steel boiler tube. Consequently I would only ever now use stainless steel. Neill, how old is your galv. flue and how's it standing up.

[nissanneill]

Re: Chimney height

I've had it up for around a year and no sign of rust. I also have one on my slow combustion heater in the rumpus room and replaced it after 15 years of extensive winter use, ie alost continuous use for 3 months a year.

Neill

[david s]

Re: Chimney height

I do remember that I used to get my pot bellied stove VERY hot. The updraft flue would have had direct flame impingement on the thin galv. Guess that's what stuffed it.

[nissanneill]

Re: Chimney height

Galvanising is only an alloy lead and tin. It is quite easily melted and then gone. Heat will bare the metal and rust (oxidation) set in. Look at the timn cans put into a campfire and how quickly they then rust.
It is rare that you should ever get flames coming from your oven and into your flue/chimney void let alone up your chimney.
A pot bellied stove has the chimney directly off the firebox and it often has fire in it and possibly burning the build up of resins/residue that builds up over time.

Neill

[Groves]

Re: Chimney height

Let's not forget that the inhalation of the fumes from that galvanizing burning off will kill a person, too. Not immediately, but the symptoms of this "metal fume fever" will seem flu-like, until you die a few days later, of course.

Obviously, it takes a certain amount, but it never hurts to know what you're up against.