How much horizontal stovepipe is acceptable?

[Douglas3Stoves]

For years I've wondered what the experts here would think about this. Finally got around to taking a picture and posting it here. If the stove pipe sections are 2 feet each, it's 20 feet long. This is at a tavern at a fairgrounds in Wisconsin. So that explains it.😆

 

[EatenByLimestone]

I suppose it depends what you’re burning. A 150 year old potbelly (also a coal stove) will let a lot more heat up the flue than a modern wood stove. You also don’t have to worry about creosote.

Is that actually being used? It seems like a hot, unshielded stove 5” from a walkway in a bar is pushing the business owners luck as far as liability goes.

I can see an insurance company having issue with the floor protection too.

 

[30WCF]

Could also be converted to gas, and regulated to “warm to the touch”.

 

[stoveliker]

I'd also say that it depends on the height after the pipe leaves the room
If it's 40' tall, it'd draft stronger...