Tankless Water Heaters2022-06-09T14:53:24-04:00

Tankless Water Heaters

With a tankless water heater from Advanved HVAC, now you never have to worry about running out of hot water.

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setting a tankless water heater
Tankless Water Heater

Going Tankless Means Efficiency and Speed

No one enjoys a cold shower, especially during the frosty winter months. Now you never have to worry about running out of hot water! Advanced HVAC installs the innovative Rinnai brand of tankless water heaters that deliver a never-ending source of hot water–whenever and wherever it’s required. With a properly sized tankless water heater, you will never have to worry about hot water being used simultaneously in multiple areas ever again.

Showers and baths? Not a problem. Laundry and dishes? Wash away! Gone are the days of scheduling your hot water usage. Not to mention that all our tankless water heaters can easily adjust to your desired temperatures with a simple digital controller. All of our tankless water heaters are ENERGY STAR® certified, which will guarantee savings on your monthly utility bill.

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Our most popular product

tankless water heaters


  • Endless hot water.
  • Up to 96% Annual Fuel Utilization Efficiency.
  • Various models and sizes available.
  • Easy maintenance.
  • Once registered, receive 5 year limited warranty on parts and labour and 12 year limited warranty on the heat exchanger.

What our Ottawa Clients say about Advanced HVAC

Micheline Collin

"Had an excellent experience with Advance HVAC. Alexandre wore protective gear while servicing the furnace and AC. Respected social distancing protocol. Very professional. The price I was quoted Online was what I paid. I would recommend them in a heart beat! Excellent service!!"

Jessica McIntyre

"Had an excellent experience with Advance HVAC, we looked at a few different companies and decided on this one. They were super responsive, friendly, and courteous. They wore protective gear while installing our unit, and respected social distancing protocol. Very professional. We would recommend them in a heart beat! Excellent service!!"

Eliza Bateman

"Efficient, quick and thorough work by our technician, who also explained everything to us, and gave us some helpful tips for keeping our furnace running well for a few more years. Cost also v. reasonable! Definitely would recommend the furnace maintenance service."

David Tesarowski

"Our furnace stopped working at the folks at Advanced arrived as soon as they could and provided a thorough review of the issue and made prompt recommendations. They even dropped off a few space heaters to help us through this tough time!"

Jocelyne P

"Alexandre is very professional and thorough. Cleaned and checked the furnace and gas FP. He addressed all my concerns. I feel good knowing that this equipment is in good working order. It’s comforting to know I can look forward to a warm and comfy fall and winter."

Phil N

"Have used the 3rd year in row for HVAC installation and maintenance and they are always reliable and good quality. Service technician Matt was very friendly and took the time to talk me through a few questions I had as well about technical expansion ideas I had. Highly recommended!"

Gayl McKinley

"Very pleased with the professionalism and thoroughness of the entire process. From calling for an appointment right through the actual maintenance procedure everything was smooth. Matt was courteous with my questions and wore a mask the entire time. I will continue to use Advanced HVAC for all my future needs."

Marlene Sadler

"My home is warm again! I called late in the afternoon and Matt arrived the next morning. He was knowledgeable, professional, serviced & repaired my furnace. As an added bonus he educated me on a couple of technical aspects for the unit. Advanced HVAC is definitely who I’m calling for future HVAC requirements. Thank you!"

Gabriel Bisson

"Received a fair price for a new 1.5 ton AC unit. The workers showed up on time and were able to install in an afternoon. We are happy with the service and quality of work."

Cassandra Bernard

“Advanced HVAC did a fantastic job on our AC replacement, going above and beyond the contract to make sure the work was done well. The techs were friendly and very professional, and they did a great job keeping our home clean throughout the installation. Would definitely hire Advanced HVAC again.”

Trevor Burton

“I had Advanced HVAC perform my annual furnace maintenance and their service was outstanding. The technician (Andrew) arrived on time and was very courteous and professional. He explained in detail all of the maintenance he performed and happily answered all of my questions. Highly recommended.”


Frequently Asked Questions

Why should I get a tankless water heater?2021-01-12T15:33:23-04:00

Tankless water heaters are a great choice for many homes. There are many significant advantages to getting a tankless water heater because they are:

  • Long-lasting and durable: Tankless water heaters are especially durable and are made with quality materials. Tankless water heaters have a very long life expectancy and have minimal operating costs. Most models also have replaceable parts so in the event that your tankless water heater needs servicing, the individual part can be replaced instead of the entire unit.
  • Able to produce endless hot water: While water storage tanks are limited by size and can run out of water after periods of extended uses, tankless water heaters can provide continuous hot water.
  • Environmentally friendly: Traditional water heaters heat water, which then sits in a tank. This water loses its heat and the tank is constantly turning on and off to keep the water heated. With tankless water heaters, the water is only heated as it is needed, meaning there is less wasted energy.
  • Compact and space-saving: Traditional water heaters take up a lot of space, and for those with smaller homes the lost space is felt more strongly. Tankless heaters are installed hanging on the wall, out of the way and taking up very little space.
  • If you are considering making the transition to a tankless water heater, contact us today.

    What size tankless water heater do I need?2021-01-12T15:14:40-04:00

    Choosing the right size of tankless water heater involves a couple steps and a bit of math. While they are a great option for most homes, getting the right size means getting the most out of your tankless water heater.

    1. Decide the total number of water devices you want to run and their total flow rate, and add them all together. You want to make sure the tankless water heater you install in your home is the right size to handle your dishwasher, shower, faucets, etc. Once you have added these numbers together, you will have the desired flow rate you will need for your tankless water heater
    2. Determine the necessary temperature rise. Again, this step will require a little math. To determine the temperature rise, you will simply subtract the incoming water temperature from the desired output temperature. If you are unable to measure the temperature of your water, a safe assumption is that incoming water temperature is around 10°C. In most cases, the desired output temperature is between 42-45°C.

    Tankless water heaters are rated by the maximum temperature rise possible , so once you have determined your total flow rate and necessary temperature rise, you will be able to choose a water heater that suits your home and needs. If you are unsure about what size would be best for your home, contact us today, we would be happy to help.

    What is a tankless water heater? How does it work?2021-01-12T15:13:54-04:00

    As the name suggests, tankless water heaters – also known as instantaneous water heaters, or demand-type water heaters – are water heaters which do not use a storage tank and heat the water instantly. While traditional water heating tanks When a hot water tap is turned on, water flows into the unit and is heated by either a gas burner or an electric element. Water is only heated as you need it, and heated water is not stored.

    Advanced HVAC in Ottawa

    With 100+ years of combined experience, Advanced HVAC provides fast and efficient 24-hour emergency HVAC service in Ottawa, 365 days a year. A friendly & highly competent Advanced HVAC technician is always ready to assist you.


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    Ottawa, Ontario K1J 9G5

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