fothermo

1 kW solar immersion heater

Hot water. From sunlight.

1 kW solar immersion heater
SimpleEconomicalIndependent

No big solar roof. No red tape. Just hot water from the sun.

How it works

Three steps. That's it.

The 1 kW solar immersion heater connects solar panels directly to your hot water tank.

Schema: Photovoltaikmodule, Solarkabel und 1 kW Solarheizstab im Warmwasserspeicher
Everything at a glance.

Digital display

Everything at a glance.

Power and temperature, always in view – right on the device.

  • Up to 99% efficiencyThe patented MPP tracker gets the most out of your panels.
  • No inverterDirect current straight from the panels into the water.
  • Made in GermanyDeveloped and manufactured in Germany.

Plug & Play

Plug in. Done.

Screw it into the tank, connect the solar plugs – that's it. Your existing hot water tank stays.

Plug in. Done.

Technology

Thoughtful to the core.

Few, high-quality components. Each with a clear purpose.

Thoughtful to the core.
99 %
MPP tracker efficiency, up to
1 kW
Heating power
0
Inverters needed
CE
Certified quality

fothermo

Trust that pays off.

10,000+
solar boilers and immersion heaters delivered
10+
countries worldwide
2–5years
until it pays for itself
2020
founded in Neu-Ulm, Bavaria

Models

Which one is right for you?

For higher demand
1 kW solar immersion heater

1 kW solar immersion heater

1 kW solar immersion heater

  • Household2–4 people
  • Recommended PV power1,500–2,500 Wp
  • Heating powerup to 1 kW
  • Price€499,00
To get started
550 W solar immersion heater

550 W solar immersion heater

550 W solar immersion heater

  • Household1–2 people
  • Recommended PV power800–1,600 Wp
  • Heating powerup to 550 W
  • Price€399,99

Experiences

From real homes.

„We've been using the heater for about a year with five Trina 450 W panels and were able to leave our oil heating almost completely off all summer.“
Thomü1 kW solar immersion heater · oil heating
„On the second sunny day, my 180-litre hot water tank was already heated to 65 °C. Exactly as I wanted.“
Michel Kuchalski1 kW solar immersion heater · in February
„Our gas heating costs were high. Now, in the summer months, it's switched off completely in our two-person household.“
Anna WeberSolar immersion heater · gas heating

Hot water, paid for by the sun.

We'll advise you personally – and find the solution that fits your home.