Tankless Water Heater Installation | Water Heater Replacement in Surrey | Abbotsford

tankless water heater installation

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A tankless hot water heater, also called instantaneous hot water, on demand heater, or readily on demand water heater, is a water heater that instantly heats water as it flows through the unit. Some system carries a buffer tank, while others don’t retain any water internally except for what’s inside the heat exchanger. Copper heat exchangers are preferred in these units because of their high thermal conductivity. 

How Does tankless water heater work:

  • Whenever a hot water tap is opened, the tankless hot water heater detects the flow of water by using a flow sensor which sends a signal to the circuit board for it to turn on the combustion blower fan motor.
  • The electronic spark igniter turns on, and the gas valve activates and opens to provide fuel for the system to light.
  • The cold water then gets heated as it passes through the hot heat exchanger.
  •  An outlet temperature sensor then monitors the desired water setpoint temperature.  
  • Desire hot water then travels to the outlet location. 

Tankless hot water heaters are great at saving energy on gas and electric bills. With this system installed in your home or office building, you will always have the comfort of unlimited hot water compared to traditional hot water tanks. Like any other system, these systems require maintenance, which should be done twice, once or every two years, depending on the water’s hardness. Manufacturers strongly advise this to be done for you to have a long-term working system and, in some cases, to maintain the warranty. It is required by Technical Safety BC to have a licensed Surrey gas contractor install this equipment due to safety and potential hazards.

We are so happy that we called Joel and his team to repair our furnace. We were without heat for a week or so. We had contacted a few companies and none were able to properly diagnose our problem, instead we had 3 parts replaced and our heating system still did not work! Hundreds of dollars later we were lucky to be referred to Knowledge HVAC (and that is the perfect name for them, because they are quite knowledgeable!) Joel was able to come the same day and diagnose the problem for us. We hired him and his team to repair our furnace the next day, they were fast and efficient and we now have some heat finally! We are so happy we called them. I give them 5 stars for excellent service! I will definitely call them again if needed and will recommend them to my friends and family. Very pleasant experience, very nice guys! Reasonable rates.
Julian Whike
Aaron was very thorough and got our system running again
Andy Li
Had my furnace fixed by Odaine. Overall very satisfied with his service. Quick fix and detailed explanation. Will recommend.
Amazing service and courteous staff. Came the next day for emergency service and got my heat back on. Pricing wasn't too crazy either. Definitely recommend this company for your HVAC needs
Dmytro Nikulin
Installed Google Nest Power Connectots for Termostats. Good job!
Roberta Chaffe
Thank you for your quick, professional response regarding my commercial refrigeration! I would not hesitate to recommend this company!
Windy Hewitt
I called around for a quote, and Knowledge was the first to call back. He gave a quote and was able to help the very next day. Joel and his team is very friendly, professional and knowledgeable. Very reasonably priced. I had a gas line system installed on my food truck. They did an awesome job, and put in extra time to get the job done on schedule. The inspector was impressed with the installation, passed the inspection with no problem. Definitely recommend them to anyone!!!
Jeff Wong
Odaine was very competent, informative, polite, and thorough. He arrived early my permission and worked hard for a good review. He did a fantastic job. The company is fast and reliable.
d kim

Why Homeowners in Surrey & Abbotsford Prefer Knowledge HVAC & Refrigeration

tankless water heater surrey

Guaranteed Customer Satisfaction

Your satisfaction is our top priority. We are committed to delivering exceptional hvac service in Surrey that meets and exceeds your expectations. When you choose us, you can rest assured that your HVAC and refrigeration needs will be met with professionalism and excellence.

tankless water heater surrey

Licensed, Insured, and Bonded Professionals

At Knowledge HVAC & Refrigeration, your comfort and safety are our priority. Our team includes licensed, insured, and bonded factory-trained HVAC technicians in Abbotsford and Surrey. With years of experience, our Surrey HVAC contractors have the expertise for all your heating and cooling needs.

tankless water heater surrey

Transparent Up-front Pricing

We believe in honesty and transparency when it comes to pricing. With Knowledge HVAC & Refrigeration, you'll receive up-front pricing for our tankless water heater service. No hidden fees or surprises—just a clear understanding of the costs involved.

tankless water heater surrey

Trusted in BC Since 2019

Knowledge HVAC & Refrigeration has been proudly serving the Lower Mainland and Fraser Valley communities since 2019. Our dedication to excellence has earned us over 120+ five-star reviews on Google, reflecting our commitment to customer satisfaction.

tankless water heater surrey

Affordable Rates

We believe that high-quality HVAC and refrigeration services should be accessible to everyone. That's why we offer reasonable rates that won't break the bank. Quality and affordability go hand in hand when you choose Knowledge HVAC & Refrigeration.

We Service, Repair, Install and Maintain All Tankless Water Heater Brands

hot water tank and installation


Pros and Cons of Tankless Hot Water Heater

Unlike on demand water heater, a tankless hot water heater is more energy-efficient. However, even if you should use the highest efficient tank-style heater, gas tankless water heaters are still 8% to 14% more efficient. With an Ultra high energy efficiency of up to 0.96 UEF energy savings, compared to a on demand water heater, these units are a huge improvement. Other energy factors about tankless gas heaters:

  • Saves Money

A tankless water heater is an excellent investment for just about every household. We assure you, the customer, that it will pay for itself within a few years, especially if you live in an area with high energy costs. Saving big is always welcoming to anyone but living in comfort while saving on energy usage and money is excellent news to everyone.

  • Saves Space

Are you worrying about the space it might take, if you should install a tankless water heater? No worries, these units are are designed to take up far less space than a traditional hot water tank. 


There are more pros in having these units installed in your home, ensuring you’ve always been in hot water. However, some of these cons are;

  • Cost more upfront due to the technology inside these units.
  • Multiple faucets running at the same time will limit the flow of hot water.
  • The power outage will have the system off, leaving you, the customer, out of hot water.

Tankless Water Heater Cost for Installation

A tankless water heater costs more upfront than a traditional storage-tank water heater. However, with their long lifespan and energy savings, these tankless units will outperform any standard tank every time.

The average installation cost for a tankless water heater is generally higher but can range anywhere between $4,500 to $7,500, depending on a few factors.

Tankless Hot Water Heater Installation

Gas units are more popular compared to electric tankless water heaters . This is because most houses have either natural or propane gas available. Having any of the above units that are mentioned will serve this purpose just fine. When it comes to tankless hot water heater installation, consider calling the  water heater installer expert  . A qualified water heater installer will evaluate the size of water pipes and the gallons per minute (gpm) needed.

Tankless hot water heater installation is very important and should be done at least once per year. So, by not properly maintaining the system regularly, you will have minerals build up inside the water heater. This means that the entire system must be flushed to prevent damage or a loss of efficiency.

Tankless Water Heater in Abbotsford | Surrey

rooftop unit

NOTE: If living in an area with hard water, customers should consider flushing their heater at least twice a year.

Some customers may want to try performing the tankless water heater services on their own. Doing so can lead to potential risk or even damage to the unit. We recommend calling water heater installer for safety and peace of mind.

Areas We Service Across British Columbia

  • Vancouver
  • Lower Mainland
  • Burnaby
  • New Westminster
  • Pitt Meadows
  • Port Moody
  • Coquitlam
  • Surrey
  • White Rock
  • Langley
  • Tsawwassen
  • Aldergrove
  • Abbotsford
  • Mission
  • Fraser Valley Area
  • Chilliwack

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Knowledge Hvac & Refrigeration Ltd Heating, Cooling and Refrigeration.