100% electric
QTherm stands for fully electric heating, efficient, future-proof and perfectly integrable into modern buildings. No gas, no oil, no combustion in your home.
QTherm electric radiators with heat storage
Electric radiators with heat storage, pleasant warmth, smart control and German quality.
Manufacturer: Technotherm
A radiator that remembers heat
QTherm radiators have a core that stores heat. They accumulate heat while electricity is available, ideal from your photovoltaics, and release it over hours, even when there is no power or sun. No storage battery needed: the radiator itself holds the heat.
Synergy with photovoltaics
Higher self-consumption and lower costs.
Warmth without power
Residual heat from the core after switch-off.
Pleasant, even warmth
A combination of radiation and convection.
Why QTherm radiators
Efficient and smart
Modern controls, high efficiency and the ideal combination with photovoltaics: our systems deliver intelligent heat, precise, economical and controllable at any time.
Made in Germany
All QTherm products come from our own German manufacturing. Tested quality, durable materials and maximum reliability, straight from the manufacturer.
Types and variants
Horizontal and vertical
Formats for every room and furniture layout.
Standard or smart thermostat
The smart version allows app control and precise scheduling.
For rooms from 5 to 25 m²
Power graded to room size.
Maintenance-free
Reliable operation with no servicing required.
Where are electric radiators with heat storage suitable?
Panel storage heaters can be used flexibly across living and work spaces, including sensitive rooms such as children's rooms and bathrooms. Uniform heat emission, quiet operation and precise control make them ideal for everyday use.
Children's room
A limited surface temperature of up to 60 °C increases everyday safety and reduces the risk of contact burns. The gentle radiant heat creates a comfortable climate, without air turbulence or noise.
Living and sleeping areas
In living and sleeping areas the heater ensures a consistently pleasant temperature. The combination of radiant and convective heat creates a quiet environment, and silent operation with precise control supports restful sleep.
Office and workspaces
In workspaces it delivers uniform, stable heat even with changing requirements. Quiet operation and individual control support concentration, and it is an especially economical solution for single offices and home office setups.
Bathroom
It also works effectively in the bathroom, as an auxiliary or main heater, for example during transitional periods or for permanent needs. Models with splash protection and an optional towel rail further increase comfort.
Available power outputs
500 W1200 W1500 W1800 W2000 W2200 W2400 W2800 W
Choose the exact model and dimensions on klimatizacija.hr.
🛡️ Warranty up to 15 years
The ceramic heat-storage element and the heating element are the most durable parts of the radiator, so we back them with an exceptionally long warranty.
15 years
Heating element and ceramic heat-storage element
2 years
Control unit and other radiator parts
Warranty conditions are stated in the warranty sheet included with the product.
What does electric heating cost?
Electric radiators convert almost 100% of electricity into heat, with no combustion losses. At Croatia's average 2026 electricity price (around €0.18/kWh), and even less on the night tariff, heating a well-insulated room costs far less than most people expect.
| Room | Area | Insulation | Use / season | Cost (€0.18/kWh) | Night tariff (~€0.13/kWh) |
|---|---|---|---|---|---|
| Bedroom (new build) | 15 m² | good | 540 kWh | ~€97 | ~€70 |
| Office (partly renovated) | 20 m² | medium | 900 kWh | ~€162 | ~€117 |
| Living room (older building) | 25 m² | poor | 1,170 kWh | ~€211 | ~€152 |
| Bathroom (intermittent) | 8 m² | good | 108 kWh | ~€19 | ~€14 |
Basis: about 180 heating days per year, average electricity price €0.18/kWh (2026). Actual cost depends on insulation, habits and tariff. Figures are indicative.
Three ways to cut the cost
Heat storage + night tariff
Radiators charge at night when electricity is cheapest and release heat for hours. Up to 30% savings.
Photovoltaics
Your own solar power during the day means almost free heating. Bill reduction up to 60%.
Smart control
Room thermostats and night setback heat only when needed. 15 to 25% savings.
Explore QTherm radiators
Frequently asked questions
How do heat-storage radiators work?+
They have a core that stores heat and releases it over hours, so they keep heating even after switching off.
Can they work with photovoltaics?+
Yes. They store heat while photovoltaic electricity is available and release it later, no battery needed, higher self-consumption and lower costs.
What power outputs are available?+
From 500 to 2800 W, in horizontal and vertical formats, with standard or smart thermostat.
Where are they made?+
They are made in Germany (Made in Germany).
How much does electric heating cost in Croatia?+
At an electricity price of around €0.18/kWh (2026) and a season of about 180 days, heating a well-insulated 15 m² bedroom costs roughly €97 per season, or about €70 on the night tariff with heat storage. Larger and poorly insulated spaces use more. Actual cost depends on insulation, habits and tariff.
Are electric radiators expensive to run?+
Electric radiators are almost 100% efficient, but the cost of heat depends on the electricity price. In well-insulated spaces, on the night tariff and especially with your own photovoltaics, the cost is very competitive, with the lowest upfront investment and no installation.
Do heat-storage radiators use less electricity?+
Not necessarily less energy, but they charge at night on the cheaper tariff and release heat for hours, spreading consumption and lowering cost. That is the main advantage of heat storage.
Is electric heating worthwhile with photovoltaics?+
Yes. Your own solar power during the day can cover a large part of the heating demand, cutting heating cost by up to 60%. QTherm radiators are ready to work together with photovoltaics.
What is the warranty on QTherm heat-storage radiators?+
15 years on the heating element and the ceramic heat-storage element, and 2 years on the control unit and other radiator parts. Warranty conditions are stated in the warranty sheet included with the product.