Tankless Water Heater: Pros & Cons

Should I switch from an electric tank water heater to an electric tank-less unit?

Tru Tankless Tankless water heaters installed on a wall

Tank-less water heaters are becoming more popular these days, but are they really better, and are they worth it?

While electric Tank-less water heaters are great for giving hot water on demand, there are a few things that should be taken into consideration before switching from a tank-style unit.

Tank-less units operate more efficiently and may save you money long term on your electric bill. One important thing to note is, switching over to an electric Tank-less unit will always require an electrical upgrade from your current electrical supply because tank-less units require more initial power to operate and heat the water on demand

As an example, the least demanding electric on-demand Tankless unit would require 60 amps to operate in order to supply adequate hot water for 2-3 family home, which is around twice the amount of the tank unit. That means you will likely require additional electrical service as an added expense. Also, keep in mind that not all homes have enough power to support the added load.

Electric Tank-less on-demand water heaters have a wide range when it comes to price. We have found that most less-expensive electric Tank-less units only have a life span of around 5 years before requiring service, or replacement. So it would be a good idea to shell out that extra cash upfront to avoid complications such as; not having hot water and added visits from your plumber which can be costly and inconvenient


  • Hot Water on demand
  • Long term savings on your electric bill
  • A  definite space saver,


  • Upgrading will be a greater initial expense
  • Cannot store hot water in case of a short power outage.

In conclusion, if you want unlimited hot water and a whole lot more space Tank-less is your best bet. With a reliable unit, be prepared to spend close to double what it would cost for a Tank-style unit.

Yosef WassermannMaster plumberOffice:855-398-3656Cell: 954-997-5797

We do plumbing repair and upgrades for the Hollywood, Miramar, Pembroke Pines, Davie, Hallandale Beach, Aventura, Dania Beach, Miami Lakes, and Hialeah, FL area.