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What is the Cost of a Tankless Water Heater?

If you are considering ever purchasing a Goettl tankless water heater read on. A tankless water heater is a smart solution to providing hot water for a home addition, when renovating a master bathroom, or if you have limited space. Tankless water heater prices are influenced by several factors, not least of which is the level of installation expertise you choose.

Average Purchase Price

The sizes and configurations of water heater without a tank are so great, the purchase prices can range from around $450 to more than $5,000. You can choose from gas or electric models. The BTU output (a measure of heat production) can range from 140,000 BTUs to more than 380,000 BTUs; the more heat produced, the more you will pay.

Installation Costs


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Purchase and installation costs nationally average $1,610 according to the experts at HomeAdvisor. The range, though, is notable: $300 to $3,850. Several installation issues can affect the cost:

  • New construction requirements
  • Building codes
  • Retrofitting the tankless heater in available space
  • Gas or electric model

A gas tankless heater requires electrical power, a black pipe or flexible gas supply line, a method of venting, and a water supply. An electric tankless heater does not require venting.

Installation, according to local building code, may call for the combined efforts of a licensed electrician and a plumber. Especially with a gas model, installation by amateurs is strongly discouraged. Gas lines can be dangerous.

Does A Tankless Water Heater Save Money?


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Your tankless water heater will save you money through years of use, but you can save additional money by buying wisely and providing as much preparation work for the professional installer as you can. Consider:

  1. The cost of tankless gas water heaters tend to be several hundred dollars more than electric tankless heaters.
  2. Electric tankless water heaters will use a lot of power for brief periods, since they only operate when hot water is demanded.
  3. Only consider a gas water heater if you already have natural gas or propane service to your home, as having a gas line run solely for the tankless heater makes no economic sense.
  4. Expect annual servicing on your gas model; while electric models require almost no maintenance.
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How to Make Up Your Mind

The best way to decide between gas and electric tankless hot water heaters is to sit down with a skilled HVAC and plumbing contractor and discuss how you intend to use the tankless heater, what level of water demands your home may have, and how your unique layout of electric, gas and water lines could affect pricing.

Get a New Water Heater Installed Today!

Our team at ACE Home Services would be more than happy to have this conversation with you and help you make the best possible decision for your home. We can also provide complete Phoenix water heater installation, whether you opt for the traditional tank model or the tankless water heater. For assistance, contact us today at (602) 428-3341  or click here to schedule a service call.

See also: When to fix a leaking water heater

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