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Running Water

Tankless Water Heater Calgary

Installing a Instantaneous (Tankless) Hot Water system allows you to never worry about running out of hot water again. Back to back showers? Just threw in a load of laundry? No problem if you have a Tankless Water Heater! 

Why Choose Tankless?

Rinnai Logo

Preferred brand


Rinnai Tankless Water Heaters use up to 40% less energy than a traditional tank



Rinnai is known for quality.  Rinnai Tankless Water Heaters have a longer life span of up to twice as long as a traditional tank with proper yearly maintenance



Replacing that large, clunky tank with a Tankless Water Heater, which is roughly the size of a carry on suitcase will free up valuable storage space in your home


No hot water? Low water pressure? Worn our seals? Strange sounds? Reduced water flow? Gas smell?

Our team can help with all your Instantaneous Hot Water tank repair needs. 


Following your appliance's manufacture guidelines our team will  clean your burner and heat exchanger, replace or clean the igniter(s), perform a combustion analysis with a multi-point safety check.

Our maintenance checks allow us to detect any carbon monoxide leaks and keeps your family safe.


Ready to install a Tankless Hot Water System in your home?

Our team can asses your home's unique needs and provide a quote with a 1 year parts and labor guarantee. 

- Want a Tankless Water Heater ? -

We Can Help!

How Tankless Water Heating Work?

Tankless water heaters, also known as on-demand water heaters, generate hot water as needed, eliminating the need for a storage tank.

Operating by directly heating water without relying on an external storage tank, these units boast a lifespan twice as long as traditional systems due to their absence of storage.

The risk of rust and corrosion is markedly reduced in tankless water heaters.

Upon activating the hot water tap, cold water travels through a pipe into the tankless water heater. Depending on the on-demand system type (gas or electric), the heat source element warms the water, providing a continuous supply of hot water directly from the faucet.

Tankless water heaters ensure an uninterrupted and limitless supply of hot water for as long as it is required.

On our blog, we've published an article comparing Tankless and Traditional Hot Water Heaters, which addresses many of your questions.

Pros and Cons of Tankless Water Heater


Space Efficiency: Their more compact design makes tankless water heaters ideal for small spaces.

Eco-Friendly Choice: Opting for tankless water heaters is an excellent decision for individuals with concerns about long-term energy expenses, water conservation, and reducing their carbon footprint.

Energy Efficiency: These water heater systems virtually eliminate standby losses, preventing energy wastage as hot water cools in the storage tank.

Cost Savings: Consider that, over time, tankless water heaters result in savings by eliminating the constant expense of keeping 40 or 50 gallons of water hot around the clock.

Extended Lifespan: With an expected lifecycle of 20 years, tankless water heaters outlast standard hot water tanks by 5 to 10 years.

Gas-Powered Option: A gas-powered tankless water heater serves as an excellent replacement for your current tank water heater.

Electric-Powered Option: Electric tankless water heaters are more affordable to purchase than gas alternatives. Their smaller size and lack of venting requirements enable installation in areas where gas tankless units cannot be placed. However, keep in mind electric rates can often be higher, making this a potentially higher cost option in the long run.


Yearly Maintenance: We highly recommend yearly maintenance for your new Tankless system to prevent scale buildup and ensure the longevity of your new home's system. 

Cost Considerations: Tankless water heaters are generally pricier than traditional hot water systems. 

Capacity Limitations: Depending on your home's size, you might require multiple on-demand water heaters to accommodate the water flow rate adequately. Don't worry, the team at Harper's Plumbing can work with you to ensure we calculate the correct size and number of heaters.

Water Softener Requirement: It's is highly recommended for Calgary and area residents to install a water softener, if not already in the home, alongside their new Tankless system. Having a water softener installed reduces the presence of hard water minerals can lead to scale build-up inside the water heater.

Optimizing Your Tankless Water Heating System

When our combustion analysis is performed it allows us to precisely determine the amount of gas needed for a clean, complete combustion that burns the exact amount of gas needed with no waste.  If the appliance is using too much gas it can lead to clogged burners and higher energy costs.

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