NC 30 hookup - double or single better..

[orionrising]

Got my NC 30 delivered a few months ago, need to get it hooked up for the fall, need to get a vertical section and 90 to hook into the existing Sekilk double through the wall.

Should I go with single or double wall pipe for this part (clearance is not an issue)

 

[jeff_t]

How tall is the class A? If you don't need it to help with draft or clearance, get single wall. Spend the extra money on two 45s instead of a 90.

 

[EatenByLimestone]

I'd go with singlewall. Mostly for the cost, but heat will also radiate from it. The 30 usually doesn't have an issue with heat though.

 

[begreen]

Jeff's question needs to be answered first. If draft is weak, then double-wall using 45s instead of 90s can help. If draft is strong and there are no clearance issues (single wall needs 18" clearance from all combustible surfaces), then single-wall should work.

 

[orionrising]

cannot use 45s without disabsembling the whole thing as the existing double wall extends to where the 90 down will, be and as I understand it you cannot cut double wall?

Chimney is 18' outside.

Lowest clearance in 18" to ceiling, rest is 3' Plus

could go with double walled 90' then single vertical to give me more clearance






Is the setup as it exists, bought property as a foreclosure late last winter, had the chimney cleaned etc.

Previous owners has heat shields on the walls, But I believe this stove will not require them (I will have to remeasure when it is exactly situated

 

[begreen]

There is too much pipe coming through the thimble. I would pull the horiz. stub coming off the tee and replace it with an 18" or 2 ft (?) shorter piece. The double-wall we are referring to is not double wall chimney. It is double-wall stove (connector) pipe. You may not need it with this setup. If you want to try single-wall it may work out ok. Remember that it needs 18" clearance in all directions from combustibles if unshielded.

 

[orionrising]

Hmm will probably try the single wall then, is 18" clearance really safe or should I use a double 90? and will the double wall interior attach to the double wall chimney without an adapter?


How are the chimney units attached to eachother? screws under the sealant?

 

[begreen]

You will probably want to stick with one manufacturer for the entire system. Single and double-wall pieces are usually not interchangeable. You go with one or the other and don't mix pieces. Sometimes there is an adapter needed to connect to the chimney pipe. It depends on the make. What is the mfg and model of the chimney pipe?