Hot Water On Demand Non-Stop With Tankless Water Heater

Tankless water heater provides hot water on demand non-stop at continuous flow hot water. Instant water heater cost to provide endless hot water is well worth it.

Why Tankless Hot Water

  • CONVENIENCE With a tankless water heater you get endless hot water on demand. The moment the tap is open, tankless water heater starts giving you hot water.
  • EFFICIENCY Natural gas tankless water heater efficiency is 96%. It brings hot water on demand. If you don't run hot water - no standby losses. Compare it to a regular water heater with losses of 50% when it runs and 100% standby losses. It keep water hot even when you leave for vacation
  • INSTANT HOT WATER Starts producing hot water in less that a second. Hence another name for on demand water heater - instant hot water system.
  • SPACE SAVER Tankless water heater is much smaller than a tank. But the main space gain comes from the flexibility. Tankless water heaters can be moved to another place in the house that otherwise is not used.
  • TIME SAVER Doing laundry, running the dishwasher and taking a shower at the same time becomes possible with tankless water heater.
  • LESS CHANCE OF FLOODING End of the life of tanks is usually when it bursts. Which results in a flood. Tankless water heaters don't burst.
  • SAFETY Your can keep hot water temperature down to 115F and still get 3 simultaneous showers. Nobody will ever get scolded.
tankless water heater installation

About Rinnai Tankless Water Heater

  • In our experience, Rinnai water heater is by far the most reliable on demand water heater on the market. That's why we call Rinnai the best tankless water heater.
  • High customer satisfaction. See Lowe's reviews
  • Rinnai is our main on demand water heater model
  • Made in Japan
  • Energy Star qualified
  • Heat exchanger warranty - 15 years: parts - 5 years
  • In Toronto conditions Rinnai provides enough hot water for 3 simultaneous showers
  • Dimensions 18.5 in. x 26.4 in. x 11.4 in
  • Specs and Energy Guide

When We Install Your New Tankless Water Heater:

  • No cost surprises. Your new tankless water heater cost will be exactly as quoted.
  • Install done right the first time
  • Water heater installer is factory trained
  • Our water heater technicians make sure that the tankless water heater functioning correctly before they leave.
  • Maximum Comfort
  • Your new tankless water heater will operate up to specs

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Why Choose Cozy World Inc?


With over three decades of experience in the HVAC industry, Cozy World brings a wealth of knowledge and expertise to every project, ensuring reliable and efficient solutions for your home.

Certified & Insured

Our team consists of certified professionals who are fully insured, providing you with peace of mind knowing that your HVAC needs are in capable hands.

Authorized Dealer

As an authorized Lennox dealer, we offer access to the latest technology and products, delivering quality and innovation to your home.

Energy Efficiency

Cozy World is your partner in maximizing energy efficiency. Our team is well-versed in eco-friendly HVAC solutions to help reduce your carbon footprint and lower energy costs.

Transparent Pricing

At Cozy World, we believe in transparency. Our pricing is straightforward and competitive, so you can make informed decisions about your HVAC investments.

Professional Installation

Our commitment to professionalism extends to every installation. We take pride in our meticulous work, ensuring that your HVAC system is installed with precision and care.

Rated Best HVAC Company

CLICK BELOW to see reviews from Google, Lennox and Homestars

Kevin Zhang
Kevin Zhang
a month ago
Used this company twice. They installed a new AC unit for me last summer. Efficient and easy to work with. This past week, they did maintenance on my furnace as I noticed some performance issues and its a very old one. The gentlemen did a great job explaining the situation and what he did. Furnace now runs much better and noticeably saving gas. Definitely recommend…
Bill Welch
Bill Welch
10 months ago
I was on the hunt for a cold climate heat pump system to replace our 20 year old Carrier system. Based on all the great reviews on Google and Homestars, I picked Cozy World (after receiving 2 other quotes from other companies). Boris was extremely knowledgable and responsive providing a great quote for a Lennox Signature heat pump/furnace system. No matter how many questions I…
a month ago
I've had my furnace and AC serviced and maintained by Cozy World for several years now and while the technicians are not the same year after year, the quality of the service, professionalism and knowledge base of Cozy World technicians have always been top-notch. Needless to say, CW also installed my furnace and AC seven years ago and I highly recommend them for both new…
Sky Flyer
Sky Flyer
3 months ago
Fantastic good old fashion reliable service. Furnace stopped working, gave them a call, Boris gave me some tips on how to get in working through the night. That was amazing. First thing in the morning the technician Ramin was here on time with the part. Furnace is running like new. And we are nice and warm today with -10 degrees weather outside.
Susan Thomas
Susan Thomas
6 months ago
Everything about our Cozy World experience has been fabulous, from the quotation to the installation. We were quoted on a conventional A/C as well as a Heat Pump and Mr. Sherman was great with explaining the pros and cons of both. We got a new Hi Efficiency furnace and a Heat Pump installed along with a new thermostat. The installation was done professionally and they…

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