Installing Jotul 500 Tightest to Masonry Chimney

[avc8130]

I'm working on my hearth plans to install my Jotul Oslo 500 and I could use some advice. I'm tying into an existing masonry chimney that is currently terracotta lined. I plan to run an insulated SS liner in the chimney so I get to set the thimble height for the stove wherever I would like basically. The chimney originally had the stove installed on the backside, but we will be closing up that hole and making a new on on the front side. The whole chimney will be covered in real stone veneer so there are no concerns with clearance to any combustibles. I will be building a raised hearth to put the stove on and will use an approved ember protection in front to cover the wood floor. All of this has been cleared with my local inspector.

Due to the configuration of the room, I'd like to keep the stove as tight to the chimney as possible. This is where my question comes in. The stove can vent either vertical or rear exit. If I got vertical I will have to use an elbow to enter the chimney and that will drive how far the stove has to be from the chimney.

I THINK if I use rear exit I could get much closer with a short flue connector. Has anyone done this? How close can I feasibly get to the chimney and still be able to hook everything up properly?

Thanks!

ac

 

[bigealta]

How tall is the chimney going to be?

 

[bholler]

I would recommend against straight out the back. It means you will have a big hassle when you go to replace the stove at some point

 

[avc8130]

How tall is the chimney going to be?

The stove has been vented through this chimney in the past on the backside. It worked out ok. I'm expecting the draft will be even better as this time the install will be with an insulated 6" liner vs into the square terracotta as before.

 

[avc8130]

I would recommend against straight out the back. It means you will have a big hassle when you go to replace the stove at some point

I've thought about that, but then also realized there's really no reason for ME to worry about changing the stove. This one should easily last as long as we will live here and minimizing the space taken up in the room is a high priority. If this will only save a few inches I'll go vertical with the elbow, but if I can save 6" or more the risk is worth it to me.

 

[bigealta]

Oh this is the same f500 that was running well on the other side?
Not a new f500v3?

 

[avc8130]

Oh this is the same f500 that was running well on the other side?
Not a new f500v3?

Correct. I think the v2 version with the simple overhead burner tubes. Runs great. Love it. In this role it is mostly for ambience anyways as we heat the whole house with a Woodgun in the basement.

 

[bigealta]

Correct. I think the v2 version with the simple overhead burner tubes. Runs great. Love it. In this role it is mostly for ambience anyways as we heat the whole house with a Woodgun in the basement.

How many cords do u go thru in a season?

 

[avc8130]

How many cords do u go thru in a season?

I assume you aren't asking about through the Jotul but curious about the Woodgun? We go through about 6-8 in Northern NJ heating 3500 square feet. 2500 first floor ranch with cathedral ceilings, 1000 in a basement with a walk out.

 

[EbS-P]

I’d do top vent with two 45s. But that’s just me.

 

[avc8130]

I’d do top vent with two 45s. But that’s just me.

That's getting REALLY far away from the wall. Rear vent is actually less bends in this configuration than top vent the way this stove is designed...

 

[EbS-P]

That's getting REALLY far away from the wall. Rear vent is actually less bends in this configuration than top vent the way this stove is designed...

The shallow firebox these F500 and the F400 (more so on the F400) spill more smoke on a rear vent setup (even with really good draft than a top.

 

[avc8130]

The shallow firebox these F500 and the F400 (more so on the F400) spill more smoke on a rear vent setup (even with really good draft than a top.

I think I would take that risk for the perceived use. I honestly don't see us using this stove more than a handful of times/year.

The big question that no one has been able to help with is: "Can I get the stove closer to the chimney in reality with rear exit vs top? If yes, how much???"

 

[bigealta]

I assume you aren't asking about through the Jotul but curious about the Woodgun? We go through about 6-8 in Northern NJ heating 3500 square feet. 2500 first floor ranch with cathedral ceilings, 1000 in a basement with a walk out.

Yeah just curious about total with both stoves. I probably use 3 or maybe 3 1/2 cords a season in a cape house near NJ coast (Monmouth county). With 1 electric radiator for the basement to protect pipes and maybe 50-100 gallons oil if i go away for a week or 2. Your house is probably 2 times the size of mine. And you are in a colder area. So that makes pretty good sense.

 

[bholler]

I think I would take that risk for the perceived use. I honestly don't see us using this stove more than a handful of times/year.

The big question that no one has been able to help with is: "Can I get the stove closer to the chimney in reality with rear exit vs top? If yes, how much???"

You might get it 2 or 3 inches closer. But it makes cleaning a pain and makes replacement next to impossible

 

[avc8130]

You might get it 2 or 3 inches closer. But it makes cleaning a pain and makes replacement next to impossible

THAT is the info I was looking for! I'll do a vertical exit and come up a bit with double-wall to keep clearances tight for my wooden mantel.

Thank you!