Chimney Liners

A properly installed chimney liner will update your home to the Technical Standards and Safety Authority (TSSA) building standards requited for atmospheric/ conventional vent gas water heaters.

Chimney LinersDeMark Home Ontario Inc offers chimney liner installation by fully licensed professions for residential customers. There are various reasons to install a chimney liner and consider various types of liner available. If your chimney is older it might not have a liner installed, it may have been constructed without a liner, and overtime the existing liner may have deteriorated. Chimney Liners are essential for venting fumes from your home heating appliances. They vary in size and length and one of our highly trained technicians will help you bring your home up to the TSSA standards and make it a safer place to live in.

A chimney liner installation always begins with an inspection of the existing masonry chimney. A thorough cleaning of the chimney must be done prior to the installation of a chimney liner to clear it of any obstacles that can cause issues to the installation. The liner is generally lowered into the chimney from the top and attached to a base support system within the chimney that is affixed from the bottom; however it is also possible to do the flexible liner installation from the bottom up. This depends on the unique situations of your home.vented hot water heater tank needs to be released through your chimney. If your home doesn’t currently have a chimney liner, technician upgrading a water heater must properly install a chimney liner to bring your hot water heater up to TSSA standards.

We are happy to help bring your hot water heater up to TSSA standards and offer free chimney liner installations with all of our conventional vent water heaters.

Please contact us to learn more about FREE chimney liner installation with installation of a new rental Conventional Vent Hot Water Heater.

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This item comes with absolutely free standard installation. We’ll ensure that the product is completely installed to code and fully functioning prior to leaving.


Great news! Receive a brand new digital thermostat absolutely free when renting this HVAC product from DeMark Home Ontario.


Great news! When renting a furnace or air conditioner, you’ll get your first 2 months absolutely rent free.


Great news! When renting a furnace and air conditioner together, you’ll get your first 3 months absolutely rent free.


This product carries a manufacturer warranty and we’re happy to explain it in full to you. Feel free to get in touch with us for more information or see the Warranty Information tab for more information


If your order is placed and confirmed by 11am, we can have your HVAC product installed within the same day.

Certain conditions apply, not available on all products.


This water heater is subject to reduced rental rates based on the DHO discount program. Save money on your bill every single month!

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Save money on this item when buying it along with a qualifying high-efficiency furnace or air conditioner.

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Great news! When renting a qualifying water heater, you’ll get your first 2 months absolutely rent free.


Promotional code can be found on the eFlyer, Brochure or promotional email that you received from us.

*If you are an existing customer please refer to the mail or email that was sent to you after the installation of your equipment as it contains your promotional code. If you are having troubles locating it please call us and one of our Customer Service Representatives will be happy to assist you.

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Notice for Power Vent Water Heater Customers

Effective August 2007, gas code requires technicians working on venting to replace black ABS vent pipe with white UL-certified vent pipe.

We will upgrade your venting pipes at no additional cost.

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