25 Questions &
from Pagosa Springs, CO asked:
May 14, 2022
Can I use Duravent DVL double wall in the attic? is it a Class A pipe?
DVL is intended for use in open space and is not a Class A chimney, The Class A options from Duratech are DuraTech and DuraPlus.
on May 16, 2022
from Florida asked:
December 4, 2021
I have an open porch. I would like to place my potbellied stove near the edge of the porch, is there a way to vent the stove without putting a hole in the ceiling?
Unfortunately, you will need to vent the stove up through the ceiling.
on December 5, 2021
from Maryland asked:
October 2, 2021
Is it recommended to insulate chimney liners to my wood stove insert?
from Kenmore NY asked:
December 30, 2020
Can freestanding gas stoves be directly vented into a chimney?
Certain stove models will allow this installation with certain adaptors necessary. You will need to verify this installation in your installation manual for that stove.
on December 31, 2020
from Columbus, MS asked:
December 22, 2020
How many 90 degree elbows are allowed in a 12-foot run of 6-inch chimney pipe?
Zero 90° elbows are allowed in a chimney. One can be used in the connector and a cleanout tee can be used at the bottom of the chimney. Above the tee you are limited to smaller angle offsets. Local code will have a specification, but 30° angles or less are recommended.
on December 23, 2020
from Tryon, NC asked:
October 24, 2020
The inside roof is filled with open-cell foam. How do I install the chimney of a high-efficiency wood-burning stove through the roof?
Most class A chimney pipes used with wood stoves require a 2-inch clearance around the outside; you will need to ensure this clearance is maintained when going through your roof deck, then you can use a roof flashing for the top side and use sheet metal to flash the underside.
Tyler M. - NFI Master Hearth Professional
on October 26, 2020
For an oil-heated appliance, should I replace my rotted chimney cap with aluminum or should it be steel?
Stainless Steel is the recommended material for the termination cap on an oil-fired appliance. You can find the different caps the offer here.
on July 14, 2020
from New Castle, DE asked:
May 21, 2020
How do you measure the size of a chimney cap?
If you have round pipe the caps are sold by the inside diameter and also based on whether the pipe is air cooled or solid packed with insulation. If you have a single flue the cap is sized according to the outside dimensions. If you are trying to cover more than one flue you would look at our multi-flue caps and the screen height should be a minimum of six inches above the tallest flue.
on May 22, 2020
from Helmville, MT asked:
April 15, 2020
Is there a specific mortar to use for patching and is it the same mortar for a complete redo?
Yes, you would use <a href="https://www.efireplacestore.com/rut-211.html">refractory motar</a>.
on April 16, 2020
from Rogue River, OR asked:
March 29, 2020
How do I know if I need a vented or unvented gas stove?
You will need to check with your local building inspector to determine if vent-free units are allowed in your area.
on March 31, 2020
from Merrfield, MN. asked:
February 4, 2020
How far can the vent travel horizontally before needing to go up through the roof? Also, does the chimney come in any color other than black?
On direct vent units, it depends on the model. Each has a minimum vertical and maximum horizontal ratio. The pipe also comes in galvanized, too.
on February 4, 2020
from Winston-Salem, NC asked:
January 27, 2020
Fireplace smoke guards - 4",6", etc - all seemed to max out at 48". Do you have one that goes to 50" for inside insert or 60" to bolt on the front of bricks?
Our product does not go larger than 48". You may need to consult a metal fabricator to build a smoke guard.
on January 28, 2020
from Poplarville, MS asked:
December 18, 2019
Do you have to install a chimney liner when you get an insert? Why won't it work with a regular chimney?
A stainless steel liner is indeed required when installing a woodburning fireplace insert. The reason is that the inserts are so efficient, they must have a dedicated flue connection from the insert to the top of the chimney to maintain proper draft and flow. Otherwise, you will struggle to keep fire lit and the door may need to be opened. This is not ideal for operation and impacts efficiently greatly.
Tyler M. - NFI Master Hearth Professional
on December 18, 2019
from Temecula, CA asked:
December 14, 2019
I need to replace the gasket behind the pilot, on and off knob. The gasket seats the the sections between the valve and body. I cannot find a replacement and was wondering if using material like a tire inner tube would work?
We do not recommend trying to use other materials to replace these parts. We recommend contacting your unit's manufacturer for details on what you may be able to do.
Tyler M. - NFI Master Hearth Professional
on December 16, 2019
November 20, 2019
What is a thimble, and what does it do?
It allows the safe passage of venting pipe through a wall.
on November 21, 2019
from British Columbia, CAN asked:
November 8, 2019
I have bought a wood-burning fireplace WCT2042WS and there were no instructions regarding the chimney installation and the clearances. Could you please give me that info?
on November 8, 2019
from Charlotte, NC asked:
September 16, 2019
We recently bought a house that has a ventless gas fireplace and whenever we use it there is a terrible smell, almost like gas. The gas company checked and there is no leak and stated the smell is because it's ventless. Is there any way to vent this fireplace?
Unfortunately, ventless systems may not be vented. If you have natural gas, I recommend having the system serviced and cleaned as this may eliminate the odor. If not, certain types of ventless systems are more prone to producing odor than others, so the only option might be complete replacement.
on September 17, 2019
from Ft Collins, CO asked:
August 30, 2019
What kind of pipe vent do I need for a wood-burning stove?
If your clearance to a combustible wall is 18 inches or greater you can use single wall black stove pipe, and those are available in 24 and 22 gauge. If your clearance is less than 18 inches, but greater than 6 inches to the wall, you would need to use the double wall black stove pipe. That pipe would terminate just before a wall or ceiling and you would then transfer to the chimney components.
on September 4, 2019
from Rocklin, CA asked:
March 21, 2018
Where can I find Temco fireplace replacement pipe? Had a chimney fire. Need 22 feet. Model #TCH4125 serial #AF291082
Unfortunately, we do not have any Temco chimney available as this company has been out of business for quite some time and all stock of their manufacturer-specific chimney lengths have been depleted.
on March 22, 2018
from Bellingham, WA asked:
February 24, 2018
I bought a used gas fireplace/stove that came with more chimney vent pipe than I will need to install in my manufactured home. The double wall vent pipe chimney is 7" diameter with a 4" pipe inside. The chimney will go through the ceiling and then through the roof. I believe it will be exactly vertical from the stove through the roof with no bends. Can you tell me what to look for in your store for a piece to keep the vent pipe away from the ceiling and going through the 4" of insulation above?
That would be an Attic shield
on February 26, 2018
from Denver, CO asked:
January 31, 2018
what venting parts are needed for the mirage outdoor with BBQ
If you are referring the the Mirage Stone line of outdoor fireplaces we offer, these should not be connected to any chimney system and should simply be placed at least 10' away from a home or structure and not underneath any sort of covering.
on January 31, 2018
from WA asked:
November 5, 2017
I am constructing a class B-type flue system for a Williams furnace 6551921. I plan to place it on top of a wooden room in my all metal RV barn. It is 60" to the metal roof and I have obtained 7' of B-type exhaust piping. Is there any recommendation on how to deal with the area where the flue pipe goes through the metal roof?
If you are going through a metal roof without contact to combustibles along the way, then you only need to cut out a hole with the proper clearance required for your pipe as listed by manufacturer. Above the roof, you will need a flashing, storm collar, and cap.
on November 6, 2017
from Wenatchee, WA asked:
June 29, 2017
I have a direct-vent gas fireplace and live in a very snowy area. Is there a vertical chimney cap designed for heavy snow, or do I need to use a horizontal vent cap? Thank you.
On Direct Vent unit you have the choice to either vent the unit vertically or horizontally. In a heavy snow area you will have to watch for high build up of snow on the roof which can also block the cap. Some units have a horizontal "snorkel termination" that also may help your situation.
on June 29, 2017
from NJ asked:
November 12, 2014
Do all FMI fireplaces have to have a damper installed?
Yes, that is correct. Fortunately, most of our FMI manufactured woodburning fireplaces have a pre-installed damper included.
on November 12, 2014
from Bangor, PA asked:
November 28, 2012
I need to discus my chimney setup.
If you need chimney pipe or stove pipe and are not sure exactly what you need, please complete the Chimney Pipe Design & Quote Form
. One of our fireplace specialists will design your chimney installation for you. We will send you a quote via the email that you provide. Most installation designs and quotes will be sent within 1-2 business days.
on November 28, 2012