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The 10 best tankless water heaters to buy in Switzerland

Picture of a tankless water heater

Finding the best tankless water heater system for your home can help save a lot of money in energy bills, although knowing what to look for in a heating system can be challenging for anyone that isn’t a plumber. Given the cost of paying for a new heating system, you will want to put a lot of thought and consideration into your decision, which is not always easy if you are unfamiliar with what a tankless water heater is and how to choose the right one for your home.

To help with this, we have created a handy buying guide that covers all the information that you need to know to find the best tankless water heaters for your home.

What are tankless water heaters?

As the name suggests, a tankless water heater is a type of water heating system that does not use a large water tank to store heated water. Instead, cold water passes through a pipe and into the heating unit, which uses either a gas burner or electric element to instantly heat the water. Whenever you turn on hot water, you instantly get a constant supply as there is no need to wait for a tank to fill with heated water. Therefore, a good tankless water heater makes hot water very convenient and energy-efficient.

Why should you buy a good tankless water heater?

One of the major benefits of using tankless water heaters is reduced energy consumption. Because there is no tank to fill and store with hot water, it can help to reduce water heating bills. Furthermore, while the initial cost of installation is higher than a tanked water heater, the best tankless water heaters are much more durable so will last significantly longer. This means you can save money over the long term, making it a fantastic investment for many homeowners.

How to choose the right tankless water heater in 2024?

Another picture of a tankless water heater

Choosing a new tankless water heater can be daunting for those unfamiliar with water heating systems. So here are some things to consider that can make the process easier:

  • Hot Water Consumption: You need to determine how much hot water you consume daily so that you can select a tankless water heater that meets the demand. Simply list all the fixtures in your home that use hot water at any time (e.g. faucet, shower head, dishwasher) and combine their flow rates. To check flow rate, simply refer to the manufacturer instructions for any fixture you’ve bought or check online for a rough estimate of each fixture.
  • Temperature Rise: This refers to the temperature that the heater uses to warm incoming water to the desired temperature. To calculate, you need to determine the average temperature of incoming water and subtract from the desired incoming temperature.
  • Power Source: A tankless water heater is either gas-powered or electric, so consider which is best for your needs. Electric is suitable for smaller water heaters designed for point of use (e.g. heating water for just the shower), while gas-powered water heaters are best for an entire household’s water heating.

What is the best kind of tankless water heater in Switzerland?

There are two main types of tankless water heaters available to buy:

  • Gas-powered Tankless Water Heaters: Gas-powered systems are more powered and the most used, being the best tankless water heater for an entire household. However, you need to ensure that appropriate piping is in place and consider its location relative to where the heater will go, otherwise extensive installation work may be necessary.
  • Electric Tankless Water Heaters: Electrically powered systems are only recommended for point of use rather than a whole household, as it puts too much strain on the electrical supply when forced to heat too much water. It is more affordable to install, however.

Top 10 list of tankless water heaters in Switzerland (2024)

The bestseller list compares brands and their tankless water heaters. Which tankless water heater is the best?
Best choice TOP 1
Image of Stiebel Eltron 204202 tankless water heater
STIEBEL ELTRON DHB 18/21/24 ST Trend Electronic Instantaneous Water…
  • Country approval: Germany
  • Box contents: Stiebel Eltron DHB 18/21/24 ST Trend, hanging rail, mounting template,…
  • Installation: time-saving installation thanks to the professional rapid installation…
starting from CHF 331.24*
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TOP 2
Image of Vaillant 0010023779 tankless water heater
Vaillant Electronic instantaneous water heater, VED E 24/8, pressure-resistant, 24 kW, 400 V, degree accurate outlet temperature, infinitely adjustable, digital display, 0010023779
  • Previous model: Vaillant electronicVED E 24/7, item number 0010007729.
  • Technical details: Connection: 400 Volt / 50 Hz fixed connection; Protection type:…
  • Tested safety – Vaillant electronicVED E 24/8 with adjustable scalding pro…
starting from CHF 283.22*
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TOP 3
Image of Stiebel Eltron 236745 tankless water heater
Electronic comfort, instantaneous water heater, DHB-E LCD
  • Country approval: Germany, Belgium, Austria, Czech Republic, Netherlands
  • Box contents: Stiebel Eltron DHB-E 18/21/24 LCD, hanging bar, mounting template,…
  • Installation: time-saving installation thanks to professional rapid installation…
starting from CHF 363.94*
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Offer TOP 4
Image of Thermoflow ELEX24N tankless water heater
thermoflow Elex Electronic Tankless Water Heater
  • Colour of panel may vary (grey/black)
  • Box contents: the Thermoflow Elex 24 comes without plug and connection cable including…
  • Energy-saving: thanks to the energy-saving mode and energy efficiency class A, the…
starting from CHF 195.99*
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TOP 5
Image of Bosch Thermotechnik Line 15/ 18 / 21 kW tankless water heater
Bosch Tronic Line Electronically Controlled Instantaneous Water Heater 21/24/27 kW - Switchable, Pressure-Resistant, Continuous Temperature Selection, Modern Glass Look, White [Energy Class A]
  • For the installation of this device, a 400 V power connection is necessary, the assembly…
  • Easy to install: quick over- or under-sink installation in 3 steps thanks to flexible…
  • Simply efficient: Particularly economical with energy class A. Up to 30% energy and…
starting from CHF 273.42*
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TOP 6
Image of AEG 204616 tankless water heater
AEG Boiler BOI 5 U, Under-Sink Boiler 5 Litres Low Pressure with Plug 230 V for Kitchen Sink and Wax Basin, 2 kW, 204616
  • Box contents: a AEG small storage, operating and installation instructions (English…
  • Installation: easy installation, with plug (socket and cold water connection sufficient),…
  • Safety and quality: child lock thanks to adjustable temperature limit/scald protection;…
starting from CHF 66.54*
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TOP 7
Image of AEG 228841 tankless water heater
AEG AEG DDLE EASY 21 Instantaneous Water Heater
  • Your professional for lighting and tools.
  • Your professional for around the home
starting from CHF 214.62*
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TOP 8
Image of AEG 189554 tankless water heater
AEG hydraulic small instantaneous water heater, ready to plug, without pressure for hand sinks., white, 189554
  • Country approval: Germany
  • Box contents: 1 AEG small instantaneous water heater MTH 350, company logo for overtable…
  • Installation: only horizontal over/under-sink mounting on the wall permitted
starting from CHF 112.69*
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TOP 9
Image of MAXXMEE 04900 tankless water heater
MAXXMEE Compact Instantaneous Water Heater Instant Hot Water from Almost Any Water Connection Electric Stainless Steel Tap for Garden, Workshop, Camping etc. 220-240 V
  • The Exxtra for you: with the German brand MAXXMEE you will find clever products…
  • Easy installation: screw the instantaneous water heater on the old tap, plug in,…
  • Powerful and intuitive: thanks to 3000-3600 watts, the heating coil heats water in…
starting from CHF 44.09*
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TOP 10
Image of Stiebel Eltron 230770 tankless water heater
Electronic Comfort Instantaneous Water Heater
  • Box contents: 1x Stiebel Eltron DCE 11/13 compact, plug, connection hose 3/8, T-piece…
  • Professional RAPID installation system for easy and stable under-sink mounting. Can…
  • Saves up to 30% energy and water by electronic power control. Only the energy needed…
starting from CHF 244.02*
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We participate in the Amazon Associates Program. As an Amazon Associate we earn from qualifying purchases. We consider only products that are available on Amazon while the ranking is based on factors such as customer reviews, number of sales and keyword. Last Update: 2024/12/06. *Price incl. VAT., exkl. shipping - Price may vary. Price converted (exchange rate: 1 EUR ≈ 0.98 CHF).