Why Homeowners Choose Tankless Water Heaters
Tankless water heaters are often chosen by homeowners who want reliability and efficiency without giving up comfort.
Some of the most common reasons people make the switch include:
- Hot water that does not run out during normal household use
- Improved energy efficiency compared to traditional tanks
- A longer system lifespan with proper maintenance
- More usable space in mechanical rooms or basements
For many Calgary homes, tankless systems are a practical long-term upgrade rather than a short-term fix.
How Tankless Water Heaters Work
Tankless water heaters are sometimes called on-demand systems because they heat water only when a tap is turned on.
When you open a hot water tap, cold water flows through the unit. A gas or electric heating element warms the water before sending it to the faucet. Because there is no storage tank, hot water is delivered continuously as long as the system is sized correctly for the home.
This design also reduces the risk of rust and corrosion that can develop inside traditional storage tanks over time.
Tankless Water Heater Installation Considerations
Installing a tankless water heater requires more planning than a traditional tank system; proper sizing and installation matter.
When planning a tankless water heater installation in Calgary, we look at:
- Household size and water usage
- Gas or electrical capacity
- Venting requirements
- Space available for installation
- Water quality and mineral content
These factors help ensure the system performs as intended without unnecessary strain.
Preferred Tankless Water Heater Brands
We primarily install tankless systems from Rinnai and Navien.
These brands are known for reliability, consistent performance, and strong support in residential applications. We help homeowners choose a model that fits their home rather than pushing a one-size option.
Pros and Cons of Tankless Water Heaters
Tankless systems offer many benefits, but they are not the right fit for every home. We believe it is important to understand both sides.
Advantages
- Compact size that frees up space
- Energy efficiency by avoiding standby heat loss
- Longer lifespan compared to traditional tanks
- Continuous hot water when properly sized
Considerations
- Higher upfront investment than tank-style systems
- Annual maintenance is strongly recommended, and depending on water hardness and usage, more frequent descaling may be recommended.
- Some homes may require system upgrades
- Hard water can affect performance without proper treatment. Minerals build up inside the heat exchanger, especially in areas with hard water. Regular descaling resolves this, but severe buildup may require component replacement.
We take the time to explain these points so homeowners can decide with confidence.
Water Quality and Maintenance
Calgary water is considered hard, which means minerals can build up inside a tankless water heater over time. For this reason, regular maintenance and a water softener (link to water softener page) are recommended alongside tankless systems.
Proper maintenance helps:
- Prevent scale buildup
- Maintain efficiency
- Extend system lifespan
- Keep performance consistent
We explain what maintenance entails and how often it should be performed before installation.
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Why People Choose Harper's as Their Calgary Plumbers
We’re proud to provide our Calgary area neighbours with the best plumbing company and drain cleaning services they need. Our clients love working with us because we work to fully understand your needs.
For us, it is not simply a one time invoice or job, every interaction is the opportunity to build a strong relationship for years to come. Life has unexpected challenges and can throw unique plumbing and drain cleaning problems your way. We are here to help solve those for you.
Frequently Asked Questions About Tankless Water Heaters
Find quick answers to common toilet repair questions, from running toilets to flushing issues. If you don’t see what you’re looking for, our team is happy to help
A properly sized tankless water heater can provide continuous hot water during normal household use. The key is to size the system correctly for the number of fixtures that may be used simultaneously.
Yes, many Calgary homes are well-suited for tankless systems. Installation planning is important, especially in older homes, to ensure gas, venting, or electrical requirements are met.
It depends on the household. Tankless systems offer efficiency, space savings, and longer lifespan, while traditional tanks can be simpler and have a lower upfront investment. We help homeowners compare both options based on how they use hot water.
Yes. Yearly maintenance is strongly recommended to help prevent scale buildup, especially with Calgary’s hard water. Proper maintenance helps maintain efficiency and extend system life.
Calgary has hard water. That means a water softener is recommended when installing a tankless water heater. Softened water helps reduce mineral buildup inside the unit and supports long-term performance.
Often, yes. However, some homes require upgrades to gas supply, venting, or electrical systems. We review the existing setup before confirming whether a tankless replacement makes sense.
Both have their place. Gas systems typically handle higher demand, while electric systems can work well in smaller homes or where gas is unavailable. We help homeowners understand which option fits their situation.
Traditional tanks last 8-12 years on average. With proper maintenance, tankless water heaters often last up to 20 years.
When you’re in a pickle, we’re here to help.
We started giving pickles to customers for a simple reason, when you go over to someone’s house, you bring something with you.
That’s always felt right to us.
We’re working in people’s homes, not just on plumbing systems, and we never want that to feel cold or transactional. The pickles are a small, neighbourly way to say thanks for having us in, and to leave behind something a little more memorable than the usual magnet or business card.
It’s simple, but it reflects how we like to do things around here: personal, thoughtful, and with a bit of character.
What Our Clients Are Saying
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