Englander question

[kugss]

I bought a chinmey damper (United States Stove Cast Iron Damper, 6 in. dia. - 3196208 | Tractor Supply Company) cause my father said i should have one. I ran it all last year without one but he says that my furnace (englander 28-3500) will make more heat with it. I read the book for the furnace and it didnt say anything about it. So sould i put this damper in or just let it go as is?

 

[ktlm]

Much of your answer will depend on how strong your chimney is drafting. If it isn't really strong, the exhaust damper will cool the smoke too much and cause creosote problems. How tall and what type of chimney?

 

[kugss]

There is about 5' of black black pipe with two 45° into 20' of double wall stainless pipe too the roof.

 

[rottiman]

I wouldn't think you need it with the 2 45's there. how hard does your draft pull now?

 

[kugss]

The draft seems to pull fine. The fire is very responsive with i open the bottom damper.

 

[rottiman]

What are you stack temps looking like? If there high, obviously your pushing alot of your heat out the exhaust. The 6" will certainly slow the draft down, but be careful you don't reduce to the point that the chimney gets too cool which will in turn build creosote quicker. My last Regency stove really benefitted from one. The new NC 30 I recently installed hates it. If you put iti in and try it, you can always remove it if it dosen't work.

 

[Highbeam]

20 feet of class A atop 5 feet of black pipe is a lot of rise and will pull very hard. I would definitely put in a damper to try and slow it down.

 

[kugss]

What are you stack temps looking like? If there high, obviously your pushing alot of your heat out the exhaust. The 6" will certainly slow the draft down, but be careful you don't reduce to the point that the chimney gets too cool which will in turn build creosote quicker. My last Regency stove really benefitted from one. The new NC 30 I recently installed hates it. If you put iti in and try it, you can always remove it if it dosen't work.

I dont know what the temps are. I just got a gauge at the same time i bought a damper. What kinda temps should i look for to tell me if i should have one?

 

[CrappieKeith]

I do know what that unit wants to run at but at .03" of wc you'll have a 400 degree stack inside temp.

 

[kugss]

I do know what that unit wants to run at but at .03" of wc you'll have a 400 degree stack inside temp.

With the fire i have going tonite i have about 380° to 400° about a foot up from the top of the furnace.

 

[Highbeam]

Let me guess, you have a magnetic stick on meter right? That only measures the temp of the outside of the flue. If you had bought a real probe meter then you could measure your flue gas temps. Note that outside metal temps are half of actual flue gas temps.

Keith spec'd an inside temp so this makes a pretty big difference.