What is the downside of getting a Tankless Water Heater?

The disadvantage of on-demand or instant hot water heaters is the upfront cost. Tankless units make up for the upfront cost by twice the longevity and less utility costs. Be careful not to be a sucker for plumbers selling cheap smaller units. They don’t produce enough hot water to serve most households. They’ll only do one faucet at a time. This is a problem if you want to shower while the dishwasher is running. For residential, we install medium-sized units. They will service several showers at a time.

How long do hot water heaters last?

Hot water heater manufacturers specify a life of about eight to 12 years for water heaters with tanks. Tankless water heaters last twice as long -- about 20 years.

How much do Tankless Water Heaters Cost?

Tankless water heaters cost most upfront but save on utility costs and last twice as long. A tankless water heater costs between $900 and $2,200 before installation.