Re: Wood stove Insulated Stove Pipe

Posted by Hal--WA on February 01, 2009 at 21:19:06 from (208.81.157.90):

In Reply to: Wood stove Insulated Stove Pipe posted by djw on February 01, 2009 at 10:32:42:

We had a Metalbestos stainless steel chimney for our Earth Stove when we lived in a mobile home. The Metalbestos pipe came right down to the top of the stove and then went straight up through the roof. I installed it myself, but got permits and had it inspected. The setup was specially engineered for mobile home use and drew combustion air from under the mobile home. It worked great, and our electric furnace seldom ever came on.

But we used it for a long time and over the years, we had some very hot fires in the stove. It developed a crack in the stovetop and a crack in the back plate. So when we sold the mobile home, I decided not to sell the stove and chimney with it, just for safety and liability concerns.

The chimney came apart fairly easily, even though the sections had been assembled about 20 years before. The top 5 sections of chimney were in great shape, with almost no buildup inside and no problem areas. Unfortunately the section of chimney closest to the stove had the inner liner severely eroded, with many small holes penetrating to the insulation.

I remembered that the chimney was usually too hot to leave my hand touching it for any length of time on that section of chimney nearest to the stove top, but closer to the ceiling, it was much cooler. I always thought it was just radiant heating from the stove top, but after taking the chimney apart, I wonder if I had many chimney fires in that lowest section.

I intend to use the good sections of chimney in my barn when I get it built, and will probably use that same stove after I weld up the cracks. It never leaked smoke through the cracks, but rather probably sucked some combustion air through them.

If I was going to have a Metalbestos type chimney in my house, I would either run it through an area where it was exposed and visible, or else I would run it through a chase made of sheet metal or drywall. I would worry about running such a chimney through a closet unprotected, as I believe that the chimney might sometimes get hot enough to ignite items like clothing if they touched the outside of the chimney. But I am pretty cautious. If I remember correctly, the Metalbestos chimney was rated for 1" clearance to wood framing. I added metal flashing around the chimney where it went through the mobile home roof, just in case the ratings were a little optimistic. That part of the installation worked perfectly all those years.

Can the outside of a double wall, insulated stainless steel chimney get dangerously hot? Yes they can get pretty hot under certain conditions and I think it is a good idea to consider this when installing them and when using them. On the other hand, my Metalbestos chimney never had a creosote problem that required manual cleaning, unlike the triple wall chimneys that people I know have used. The Metalbestos chimney system is lots more expensive than the triple wall type, but in my opinion, it is worth every bit more. Good luck, and be safe!

Replies:

Add a Reply Name: E-Mail: Subject: Comments: Optional Link URL: Link Title: Optional Image URL: Optional Video Title: Optional Video URL: Advanced Posting Options Email Notification: If you check this box, email will be sent to you whenever someone replies to this message. Your email address must be entered above to receive notification. This notification will be cancelled automatically after 2 weeks.   Advanced Posting Tools   Upload Photo  Select Gallery Photo  Attach Serial # List  Return to Post

TRACTOR PARTS	TRACTOR MANUALS

We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]