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New Rinnai RX Tankless Water Heaters

The all-new Rinnai RX Series Pro Build Tankless Water Heater is here bringing the new standard for energy efficiency and a meticulous design crafted with the professional in mind.

Rinnai has introduced their brand-new Pro Build RX Series Tankless Water Heaters that set the standard for efficiency at 0.98 UEF (Uniform Factor Energy) and is the ultimate package for home comfort. The Rinnai RX features an Adaptive Gas Valve with Smart Sense technology that allows for seamlessly switching between Propane and Natural gas without using a conversion kit.


Meticulously designed with the HVAC professional in mind, the Rinnai RX Series not only offers significant energy savings, but also has key improvements in operational performance, ease of installation, and serviceability. Its key new features include:

Rinnai RX
  • Adaptive Gas Valve Technology – This feature allows for seamless switching between natural gas or propane for optimal combustion, eliminating the need for a conversion kit.
  • Quick Flush – Makes periodic preventative maintenance a simple task by providing a more quick and efficient flushing procedure.
  • Versa Vent Outdoor Vent Cap – This adapts any Rinnai RX series water heater for easy outdoor installation.
  • Rinnai Central App – The Rinnai Central App simplifies water heater setup and registration by allowing you to connect your smartphone or tablet to the Rinnai RX via Bluetooth.

Other new technological upgrades to the Rinnai RX series include:

  • The improved Primary and Secondary heat Exchangers enable more efficient heat transfer and have a robust design with minimal joints. The 444 stainless steel construction provides increased heat resistance and durability.
  •  The newly enhanced Turbo Fan allows for longer vent runs and flexible venting options. Industry leading 75 feet with 2”/4” concentric and 2” PVC/CPVC/PP. Up to 150 feet with 3”/5” concentric and 3” PVC/ CPVC/PP.
  • Its new Retro-fit Internal Pump Kit allows for non-pump models to utilize Rinnai’s advanced recirculation capability.
  • The 4-Speed DC Recirculation Pump provides you with quieter operation in a smaller size with higher heat pressure for elevated performance.

Note: While the new SENSEI RXP and RX products will replace the existing Rinnai SENSEI SE+ line, please note that the SE+ line remains a viable installation option.

If you are interested in learning more about the new Rinnai RX Series or are looking to upgrade your home to a brand-new water heater, don’t hesitate to contact us at any time. Our team of HVAC professionals are here to help you find the solution to your home comfort needs and are ready to answer any question along the way.

Rinnai RX ACE PRO Demark home ontario

DeMark Home Ontario is making upgrading to a new water heater as easy and convenient as possible. We offer free installation done by our highly trained, fully licensed, and experienced technicians. Choose from a range of options from top-of-the-line brands and models with professional installation and reliable service. Give us a call at 1 (855) 998-2998 or fill out our online request form and we will be happy to assist you.

SUBMIT AN ONLINE REQUEST OR CALL US NOW TO GET A 2 MINUTE QUOTE OVER THE PHONE.

(647) 847-2998

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Upgrading to a high-efficiency heating and cooling system offers more than energy savings.

Take advantage of these rebates today!

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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.

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

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

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

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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

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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.

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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.

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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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