Pros and Cons of a Tankless Water Heater

Pros and Cons of a Tankless Water Heater

Discover the Major Pros and Cons of a Tankless Water Heater


Tankless water heaters are an excellent alternative to conventional tank water heaters that use hot water. Tankless water heaters are a great choice to increase the efficiency of your home. They help save energy and reduce your carbon footprint.

Tankless units are generally electric or gas and only heat the water when required. The water is quickly heated upon demand by using high-powered burners or coils. It is different from conventional hot water tanks that repeatedly heat water and store it to use later.

What is a Tankless Water Heater?

Tankless Water Heater

The tankless heaters, also called on-demand-type water heaters, supply hot water as needed. They do not suffer standby energy loss like standard storage water heaters, which will save you money in the long run. This information can help you understand if a tankless water heater is a good choice for your home, what to consider when selecting the right one, and how they operate.

Tankless water heaters require less installation space than traditional storage tanks due to the compact technology design. They operate by heating the water needed by allowing the cold water to enter the heat exchanger and is heated by an electric element or a gas flame. (It will ensure you have a continuous source of hot water). Below are a few things to know about Tankless Water Heater:

  • The average tankless model can supply 2 to 5 Gallons of hot water per minute.
  • Gas-fired tankless water heaters, as per, can provide more excellent flow rates than electric models.
  • Installing multiple tankless heaters is common for families who consume a large amount of hot water. (It will ensure that there is always hot water for the shower, laundry, and dishwasher).

There are many advantages to installing a tankless unit in your home.  So to help you determine whether it’s the best option for your home, we’ll look at the pros and cons of tankless water heaters.



The following are the advantages of tankless water heaters:

Longer Lifetime

One of the advantages of tankless heaters is that they have a longer lifespan than traditional storage tank water heaters. (This is if we should evaluate a tankless water heater to a conventional water heater).

A tankless water heater can last up to 20 years, whereas conventional storage tank water heaters will last on an average of ten years. This means you won’t need replacements for your tankless tank as frequently and can save money over the long term.


The water inside the tank begins to lose heat immediately when the tank’s burner is off. Therefore, the water heater will cycle on and off more frequently to keep the water warm and ready for usage.

A tankless water heater uses energy much more effectively. Our condensing models begin at an efficiency rate of 0.94, which indicates that 94% of the fuel used is used to heat the water, and only 6% is wasted. In other words, tankless water heaters will lower your energy costs.


Many trends are towards smaller homes and tighter spaces due to the high real estate cost. It means a 40 or 60-gallon tank 5 feet tall and 2 feet wide must be validated before installation. This is not so with Tankless water heaters; they are hung from a wall that is not in the way, allowing more space underneath. Think of the area freed up in your bathroom, cottage or basement.

Lower environmental impact

Tankless water heaters utilize less nonrenewable fuel and may be fixed with replacement parts than conventional water heaters with tanks, which eventually need to be replaced.




Here are a few cons of using a tankless water heater to consider while weighing the different options:

Limited flow

If you’re planning to run various appliances that require hot water simultaneously, keeping everything warm with the same tankless whole-house water heater can be challenging. For properties that use more than 40 gallons of hot water daily, you’ll need to install a couple of points-of-use units or opt for the storage tank heater.

High initial cost

 From a financial standpoint, the tankless water heater will require an investment more significant than traditional tank heaters for storage. An on-demand water heater can initially cost three times the price of tank water heaters.

It requires substantial setup work.

The gas pipe, water pipes (for gas appliances), and electrical wiring in your home may need to be upgraded and expanded to accommodate the tankless system in addition to the original cost of the tankless hot-water heater. Also, it may include hiring electricians or plumbers to set up your home to go tankless.


You can determine whether a tankless heater suits your house with the information above. Knowledge HVAC and Refrigeration Ltd is pleased to provide our customers with top standard Tankless Water Heater services in BC. Our most experienced tankless water heater experts are always ready to help you with your endless hot water.

Furthermore, if you’re debating whether a tankless water heater is a suitable option for your home, our staff will provide skilled maintenance, replacement, and repairs for the tankless water heater. We’ll advise you on the price of the most efficient tankless water system. Call us now at +1-778-522-5669, and we’ll gladly help you.