By Wayne from Carthage, TN on September 26, 2012
I have three pipes together, but the last outer pipe will not fit over the third section. I used thin metal wedges on the sides to guide it on, but it seems to be smaller than needed. What should I do?
By Collin C. - NFI Master Hearth Professional on September 26, 2012
Answer:It is fairly common for these piping sections to get out of round on one end. This can occur during shipping or storage, if the piping was stacked.
I would recommend measuring the ends of both of these pipes to make sure the measurements are the same all the way around. If the piping has gotten out of round, it can usually be squeezed on the wider end fairly easily and made round again. If the piping does appear to be perfectly round, there may be another issue.
By Bob from Louisville, KY on October 25, 2012
I have a fireplace with cracked terracotta flue piping. What can I do to repair it? Can a liner be installed?
By Collin C. - NFI Master Hearth Professional on October 26, 2012
Answer:Unfortunately, it is virtually impossible to repair a cracked terracotta tile. The best solution would be to install a flexible liner that is sized properly to the opening of the fireplace.
Some fireplaces have a large enough flue that the liner can be installed with the flue tiles in place. However, many retrofits will require that you use a tile breaker to remove the clay chimney tiles to free up space for a larger metal liner.
By Jill from OH on March 13, 2014
Which end is the hemmed end of the venting pipe?
By Collin C. - NFI Master Hearth Professional on March 14, 2014
Answer:For the FMI 8DM and 8HT piping, the small lances on the inner 8 inch pipe will be facing upward at each connection, while the small lances on the outer 12 1/2 inch pipe will be facing downward at each connection. As such, this will put the hemmed end on the inner pipe facing downward and the hemmed end on the outer pipe facing upward.
By John from Park City, UT on August 30, 2014
I was wondering if this model pipe comes in a shorter size than 12". I'm looking for a matching section of pipe after deciding to lower my current fireplace. The inner diameter is 8" and the outside 12 3/8". What would you suggest?
By eFireplaceStore on September 2, 2014
Answer:Unfortunately, this series of piping is only available in a 12 inch section at the shortest and the manufacturer does not produce an adjustable section. Because this scenario is not terribly common, the manufacturer simply does not produce a product to help accommodate it. I'm afraid the entire chimney system would have to be raised to make room for the larger chimney section, as the only other way to get around the problem would be to cut and crimp the 12 inch length. However, most code agencies will not approve of this modification.
By Karen from Lenox, MI on February 9, 2016
Is this FMI/Superior chimney pipe a snap together pipe or do you have to screw it together?
By Will M. on February 9, 2016
Answer:These chimney sections attach with lances and hems. When connecting the chimney directly to the fireplace, the inner flue pipe section must be installed first with the lanced side up. The outer pipe section can then be installed over the inner flue pipe section with the hemmed end up. While not necessary to add screws, I recommend using 3 screws around the outer section at each chimney connection for added security.