Customer service (FAQ)

  • Why do we see 2100 chimneys with two inches of insulation and others with only one inch?

    2100 chimneys must pass very stringent temperature tests. In order to pass those tests, manufacturers must use insulation. There are many different types of insulating materials, with varying density and quality. This affects the thickness that the chimney walls must have. Ventis uses a high performance insulating material that enables the chimney walls to be approximately one inch thick. Furthermore, the material's performance allows the passage of Ventis chimney lengths into an enclosed space without the addition of a protective shield. Most other chimney brands require a shield when passing through an enclosed space.

  • Which brands of wood fireplaces are approved on Ventis 2100 chimney?

    The best brands of wood fireplaces are generally approved on any UL/ULC listed 2100 chimney. You need to verify with the fireplace manufacturer. We know that the following brands are approved on Ventis 2100 chimney: Valcourt, Osburn, Enerzone, Nordica, Supreme, and Ventis. Please verify with the fireplace manufacturer for any other brand.

  • How often should my chimney be inspected?

    It is always recommended to have it inspected at least once a year. The cleaning of the chimney can be done at the same time.

  • How often should my chimney be cleaned?

    It depends on how much it is used. When a ¼ inch of creosote builds up on the internal chimney wall, it needs to be cleaned. Most chimneys are cleaned annually or semi-annually in order to avoid the accumulation of residues. Ideally, a chimney should be cleaned at the end of the season to be ready for the next winter season, and another cleaning session should occur at mid-season. The type of heating appliance you use can have a major impact on creosote build-up. If you use an EPA certified or CSAB415.1 certified appliance, along with dry seasoned cordwood, the accumulation of creosote should be minimal.

  • Are your Ventis venting systems UL and ULC listed?

    Yes. The prefabricated chimney meets UL130HT and ULC-S629. The liners respect UL1777 and ULC-S640. The pellet pipe is certified to UL4RR9 and ULC-S441 and the double wall stove pipe meets UL103HT and ULC-S641.

  • What is the insulation material in the Ventis 2100 chimney made of?

    The insulation is a wool blanket made of Alkaline Earth Silicate. The insulation we use, made of soluble fibers, has superior thermal and mechanical properties allowing it to resist to temperatures over 2000 degrees.

  • How do your venting products attach together?

    For the Ventis 2100 chimney and the Ventis double wall stove pipe, a smooth-weld technology is used, which makes virtually invisible seams. The two lengths are attached together by 3 screws. For a pellet vent, a concealed pipe clamp is used for a quick and screwless installation.

  • Does the insulation material need to be inspected every time I clean the chimney?

    No. The insulation material is neither visible nor accessible when the chimney is installed and it does not deteriorate.

  • What is the allowed offset on a 2100 Ventis chimney?

    Since a completely vertical chimney provides optimal draft, it is best to avoid elbows if at all possible. However, when elbows are necessary to avoid obstructions such as joists, rafters, etc., use no more than two pairs of elbows (total of four elbows) that do not exceed a maximum angle of 30 degrees. You can also use one set of elbows (total of two elbows) that do not exceed a maximum angle of 45 degrees.

  • Why should I choose a double wall stove pipe over a single wall stove pipe?

    Since the interior of a double wall pipe is made of stainless steel, it offers a better durability in addition to yielding a significantly lower clearance to combustible materials. For safety reasons, some insurance companies require the use of a double wall stove pipe only.

  • What type of paint should I use to correct the scratches on my double wall stove pipe?

    The SBI high temperature metallic black paint #AC05959 or the Stove Bright Metallic Black #6309.

  • Do I need to use screws, silicone or aluminium foil tape to ensure that the Ventis pellet pipe is properly sealed?

    The tight gasket system combined with the quick connect pipe clamp ensure a perfect seal without silicone, screws, or tape.

  • May I use the Ventis double wall pipe with my chimney, which is not from Ventis?

    Yes. The Ventis double wall pipe can be connected to all chimney brands, whether it is prefabricated or masonry. The important thing is that the chimney connector is approved or meets the applicable installation standard. However, it is strictly forbidden to connect two different brands of double wall stove pipe together.

  • Is the hybrid liner certified as a rigid liner in order to replace terracotta tiles or concrete blocks?

    The quality of the Hybrid liner is equal and even superior to the rigid liner currently sold on the market. Moreover, it is listed to the same standard (UL1777, ULC-S635 and ULC-S640), allowing it to be used instead of terracotta tiles or concrete blocks.

  • Should I have my flexible or Hybrid liner swept?

    The flexible liner has to be swept the same way and at the same frequency of a conventional chimney. However, the work should be done more delicately since the interior wall is corrugated and less thick. The same applies to the Hybrid liner, except that Hybrid liner is a lot more robust and its interior smooth wall makes cleaning easier.

  • What is the maximal length allowed for the double wall Ventis stove pipe?

    While there is no limitation to the total length of Ventis double wall stove pipe, we recommend a maximum of 20 feet. It is important to insure that all sections are solidly fastened together and supported as required. Horizontal lengths should never exceed 10 feet and should possess a minimum slope of 1/4" per foot.