Hot Water On Demand

If you need a tankless water heater, Toronto trusts CozyWorld to get the job done right.

tankless hot water heater

Make Sure Your Home has Endless Hot Water

Have you experienced the worst shower ever? You know, the shower where your body is completely lathered in soap, your hair is full of shampoo, you’re washing your face, and the water turns cold. Then you start playing the blind knob game where you’re adjusting the water temperature but can’t find a comfortable water temperature. This is no way to start or finish your day.  

Are you considering replacing your old or faulty water heater? Are you looking for something more reliable and cost-effective? Have you considered a tankless water heater? Maybe you don’t know much about them, or how efficient and reliable they are.  

What if you could have an endless supply of hot water on-demand and reduce your hot water costs by 20-30%? What if the lifespan was twice as long as a traditional heater and it eliminated the risk of leaking and water damage? Would that be a water heater you’d like to have in your home?

Yes? Great, tankless water heater installation is one of the things we do best.

Gas Piping

When you work
with CozyWorld Inc,
we can promise…


The price we quote is the price you get.


Our expert technicians take their time and make sure your new
tankless water heater is installed right and functioning correctly
before they leave.


Your new water heater will work as promised, and we’ll provide
maintenance to ensure years of comfort.

4 Steps to Hot Water On-Demand:



Tell us about your home’s comfort issues.



An experienced technician will give you a free consultation explaining all of your options and provide a free quote.



Our water heater installations are efficient, professional, and you’ll hardly notice we’re there.



Never run out of hot water and enjoy lower energy bills.

Check out what customers like you are saying…

HVAC service

We contacted Cozy World to get a quote on replacing our aging furnace. Their prices were very reasonable, and they didn’t charge and arm and a leg for upgrades. When we finally decided to go ahead it was done the next day! The guys were very professional and courteous – they even laid down mats to cover the inside walkways!!



furnace & ac installation

Expect the best, you won’t be disappointed! We are very satisfied with the outstanding service provided by Cozy World. Of all companies we called to quote us a replacement for our over 20 year-old furnace and air conditioning, Cozy World was the clear winner. Cozy World proved to be trustworthy, and we highly recommend them to anyone.



toronto hvac company reviews

Cozy World installed my new Lennox air conditioner last week. I live in a rowhouse and only a front yard install was possible, so my home posed challenges another HVAC installer couldn’t solve. Kam and Boris had solid suggestions and went above and beyond to get my A/C unit in a spot that would look and function the best. I’m super happy with the job they did, and the fact that they sold me a unit that not only works on all 4 levels of my home, but also isn’t MORE than what I need, or wanted to spend. Very grateful and would recommend them to anyone.



heating and air conditioning toronto

The 2 guys from Cozy World were on time, courteous, knowledgeable and very sweet. They were respectful of our home and garden. We got a prompt quote, a quality product and we are very happy.



Read more real customer reviews:

homestars HVAC reviews

What you’ll get with

  • Gas licensed
  • Air conditioning licensed
  • TSSA registration
  • Insured
  • Bonded
  • Drop sheets are used to Protect Your Floors
  • Warrantied – Parts and Labor
  • Rated A+ by BBB. No complaints ever
  • HRAI Registration

Have questions? We’ve got answers!


It’s easy! Just click here to request a free consultation. We will give you a call to discuss your needs, and arrange to meet at your home. From there, we can give you a guaranteed price.


It’s important to take experience and customer satisfaction into account as well as price. While another company may quote a lower price, how much are you saving if the job is done poorly and needs to be repaired in the near future? With CozyWorld, you’re getting the satisfaction of a job done right the first time, every time — at a competitive price.


Also known as “on-demand water heaters” tankless water heaters heat water only when it’s needed. This eliminates the need for a storage tank and energy losses of constantly re-heating a large tank of water. They have a typical lifespan of 20 years and also eliminate the risk of massive tank leaks and water damage.


It depends on how many units need to be installed. Typically, each unit takes between 4-6 hours, so 2 units can be installed in one day. In most cases, we can install up to 3 units, same day.


First of all, look for a long track record with plenty of good reviews on Google Reviews and Homestars. Additionally, they should have a clean history with the BBB. To get a bit more technical, the company you choose must have TSSA and HRAI registrations, HST, a City of Toronto License, $2 million in insurance and WSIB registration. In addition, all techs must have both gas and air conditioning licenses. CozyWorld checks all these boxes, and we can’t wait to speak with you!


For starters, a tankless water heater has twice the lifespan of a traditional water heater. They are maintenance free. The significant savings come from energy. They do not heat the water until you ask them to. A conventional tank water heater is keeping water hot all day long. By the end of the year, this results in hundreds of dollars in savings.

We’re the Tankless
Water Heater company
Toronto trusts most.

If you’re looking for tankless water heater installation Toronto
homeowners count on, read some of our 5 star reviews:

BBB A+ for heating/cooling
lennox premier dealer award heating cooling
homestars award HVAC
tankless water heater installation toronto rinnai

We’re Proud to Offer The Rinnai Tankless Hot Water Heater

Are you considering a tankless hot water heater? Do you want to conserve electricity without sacrificing service? Look no further than Rinnai tankless hot water heater. This high-quality hot water heater is made in Japan and certified Energy Star efficient. The tankless water heater has an efficiency rating of 96 percent because it only heats the water when you need it.

The Rinnai Tankless Hot Water Heater features an enhanced combustion design to ensure you have hot water when you need it. The vertical design with its integrated front thermostat makes it easy to change your water temperature. Finally, the tankless design features an integrated check valve to prevent outside cold air from backflowing into the unit.

The Rinnai tankless water heater features a fiber mesh premix burner. This feature helps to ensure even flame distribution and optimal performance. The stainless-steel heat exchanger resists corrosion and provides many years of carefree service. In fact, this unit features a 15-year manufacturer’s warranty, so you can rest assured this unit will provide you with energy savings and hot water for years to come.

The Rinnai tankless hot water heater offers the most flexible venting in tankless water heaters in the industry. The venting option offers 14 different configurations and is compatible with nine vent manufacturers. The 2-inch adapter ring and cap allow you to use 2-inch twin piping or 3 inch by 5 inch concentric venting.

This tankless water heater is easy to mount wherever you want thanks to its mounting plate. The mounting plate can be easily adjusted to ensure the tankless water heater secures on a stud in your wall. Additionally, the pressure release valve can rotate 360 degrees to ensure proper alignment anywhere you place it.

Our high efficiency Rinnai tankless hot water heater offers easy to control parameter adjustments. This adjustment allows you to increase the hot water flow to 11 gallons per minute. To adjust the parameter, all you need to do is use the arrows select the appropriate setting number.

The Rinnai tankless water heater can easily convert from natural gas to propane gas. All you need is an inexpensive conversion kit. To change from natural gas to propane, remove the 3 internal screws, change the parameter and office and install the new data plate. It is as simple as 1-2-3.

The Rinnai Tankless Water Heater offers many benefits to both homeowners and commercial property owners, including:

  • Flexible venting options, including direct vent, concentric vent, and non-direct venting up to 150 feet in length
  • Natural gas and propane capabilities
  • Water flow sensor
  • Electronic water control
  • Bypass control
  • Energy Star
  • 15-year heat exchanger warranty
  • 5-year component warranty
  • Flame failure protection
  • Boiling protection
  • Combustion fan with RPM check
  • Automatic frost protection
  • Sensei water flow monitoring to ensure your water remains a constant temperature
  • Front mounted thermostat controls
  • Mobile home certified
  • 120-volt 60 Hz grounded circuit/wall outlet required

The Rinnai tankless hot water heater features a service indicator to alert you when your unit needs servicing. This information will alert you when it is time to flush your unit or have other services done. It ensures your unit provides you with many years of carefree, worry-free hot water.

The tankless hot water heater controls the flow of cold water entering and the flow of hot water exiting to prevent water that is too hot, too cold or fluctuates between hot and cold water. The unit allows you to determine the temperature of your hot water. It can create hot water between 98 degrees F to 185 degrees F, which many that you can get the perfect temperature of hot water for your home or office. Additionally, this unit works in conjunction with other tankless hot water heaters in large commercial or industrial settings. Press the Priority button to set which hot water heater receives the highest priority.

The Rinnai tankless hot water heater allows you to run diagnostic codes should an issue arise. There are 9 diagnostic codes. It will alert you when there is a power interruption, when no flame is available, when there is not enough air supply or the exhaust becomes blocked, if the heat exchanger overheats, if there is an electrical short, or low water flow. All these features ensure that your tankless water heater performs at high efficiency to save you money on your water heating bills.

It is easy to maintain your Rinnai tankless hot water heater. Routine maintenance must occur to ensure proper operation. A licensed professional should inspect the unit annually. All burners, air circulation passages, and compartments must be cleaned yearly. Vents, motors and the temperature controller should get inspected annually. Finally, scale build-up can shorten the life of your tankless water heater. Flushing your tankless water heater and using a scale inhibitor can ensure many years of efficient water heating.

The Rinnai tankless hot water heater will save you money on your hot water heating bills. Natural gas or propane can both power the unit. The unit is Energy Star rated and will provide you with years of hot water.

The main benefit of a tankless water heater design, when compared against a traditional water heater, is the ability to have virtually unlimited hot water. Cold water enters the water heater and heats through a number of small radiator tubes using natural or propane gas. As the water flows from radiator to radiator, the water heats to the proper temperature, providing you with as much hot water as you need. Rather than heating water in a tank, the unit only heats water as you need it, which can save a lot of money on your water heating bills.

Are you ready to say goodbye to large water heater tanks and hello to a slim, wall-mounted, tankless water heater? Are you tired of running out of hot water? Do you want to save money on your water heating bills? Order our Rinnai tankless hot water heater today and enjoy unlimited, energy efficient hot water.