Traditional vs. Tankless Water Heater - Who Takes the Gold?

If you are in the market for a new water heater and aren’t sure whether to stick with a traditional model or switch to a tankless one, these pros and cons will help you determine the best option for your home and lifestyle.

Traditional Water Heater (Tank)

Pros 

  • cheaper to purchase and lower installation cost 

  • Technicians are more familiar with maintaining traditional water heaters, as they have been used more often 

  • handles multiple appliance use without temperature drops or fluctuations 

  • easier to maintain as they have a simpler, non-technical design

Cons 

  • large appliance and takes up floor space

  • shorter lifespan of typically 8-12 years

  • Energy bills tend to be higher as the water is consistently reheated 

  • limited pre-heated water capacity, so it’s possible to run out of hot water if there is a high demand

Tankless Water Heaters (On-Demand)

Pros 

  • does not take up floor space as it’s compact and wall-mounted (great for smaller homes or apartments)

  • heats water only when the faucet is turned on, which means there is an endless supply of hot water

  • longer lifespan than traditional water heaters, from 16-18 years

  • less maintenance work is needed 

  • energy efficient, which lowers the utility bill

  • cleaner water, as there is no tank for sediment buildup


Cons

  • higher upfront and installation costs

  • potentially requires plumbing or gas line upgrades, which can be costly

  • can struggle to maintain hot water with very high demand and simultaneous use, water may turn lukewarm or have reduced pressure



How Often Should You Service Your Water Heater


Whether a traditional or tankless water heater, we recommend servicing it at least once a year to flush out sediment and keep it running efficiently. However, if you have hard water, we recommend servicing every 6 months because minerals build up more quickly. 

Annual Maintenance typically has Three Main Parts

  • Descaling/Flushing (most crucial step) - removes mineral deposits from the heat exchanger 

  • Cleaning Filters - cleans the inlet water filter and air intake filter

  • A Visual Inspection - ensures there are no leaks or signs of damage

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