Question to Venting Experts

Question to Venting Experts

PostBy: jrn8265 On: Wed Jul 24, 2013 10:07 am

I built a new pipe connection from my stove to the chimney, both are the same length.

The old one had a uphill slant from stove to chimney of approximately 5 inches.

The new pipe has an uphill slant from stove to chimney of approximately 9 inches.

Will the newer connection provide a better draft?

I guess what I am asking is "as slant increases, does draft increase"?

Appreaiet your thoughts.

thanks!
jrn8265
 
Stove/Furnace Make: Keystoker Koker
Stove/Furnace Model: Koker 160

Re: Question to Venting Experts

PostBy: freetown fred On: Wed Jul 24, 2013 10:16 am

Pix---gotta have pix--- ;)
freetown fred
 
Hand Fed Coal Stove: HITZER 50-93
Coal Size/Type: BLASCHAK Nut/Stove mix

Re: Question to Venting Experts

PostBy: jrn8265 On: Wed Jul 24, 2013 11:52 am

Does a steeper pipe angle from Stove to chimney provide for better draft on a warm day then a less steeped pipe?
jrn8265
 
Stove/Furnace Make: Keystoker Koker
Stove/Furnace Model: Koker 160


Re: Question to Venting Experts

PostBy: franco b On: Wed Jul 24, 2013 12:15 pm

jrn8265 wrote:Does a steeper pipe angle from Stove to chimney provide for better draft on a warm day then a less steeped pipe?

A steeper pipe has less resistance so will draft better but the increase would be very slight going from 5 to 9.
franco b
 
Hand Fed Coal Stove: V ermont Castings 2310, Franco Belge 262
Baseburners & Antiques: Glenwood Modern Oak 114
Coal Size/Type: nut and pea

Re: Question to Venting Experts

PostBy: jrn8265 On: Wed Jul 24, 2013 12:18 pm

Thanks! No pics, sorry!
jrn8265
 
Stove/Furnace Make: Keystoker Koker
Stove/Furnace Model: Koker 160

Re: Question to Venting Experts

PostBy: Lightning On: Thu Jul 25, 2013 6:29 pm

I'm gonna venture to say that the increased angle may help some but would most likely be un measurable. My reason for this is because the draft or negative pressure if you will, is generated by the warm flue gases rising in the vertical section of your chimney.

Hypothetically you could have a flue pipe exit your stove and angle downward several feet to a chimney and it would draft just fine. Getting the draft started though would be challenging hahaha. Think of it as a siphon only upside down.
Lightning
 
Hand Fed Coal Furnace: Clayton 1537G
Coal Size/Type: Nut Size / White Ash

Re: Question to Venting Experts

PostBy: dcrane On: Thu Jul 25, 2013 8:53 pm

franco b wrote:
jrn8265 wrote:Does a steeper pipe angle from Stove to chimney provide for better draft on a warm day then a less steeped pipe?

A steeper pipe has less resistance so will draft better but the increase would be very slight going from 5 to 9.


Franco's got this :clap: less resistance, less angles = increased draft... but in your case it may not even be measurable without some seriously computerized testing gear.
dcrane
 
Hand Fed Coal Stove: Crane 404