What is the most energy-efficient heater?
- 16/ 07/ 2025
What is the most energy-efficient heater?
When it gets cold, people look for not just heat, but the most energy-efficient heater. But what does that mean? Low energy consumption? Or the ability to heat effectively with less cost? Let’s explore the types of heaters and which one really saves energy.
Types of heaters
Convectors
Heat circulating air in the room.
Consumption: 1–2 kWh.
Oil radiators
Heat up slowly but retain warmth longer.
Consumption: 1.5–2.5 kWh.
Infrared heaters
Heat surfaces and objects directly.
Consumption: 0.8–2 kWh.
Direct heat panels
Warm up surfaces instead of air, combining comfort and efficiency.
Consumption: 0.35–0.7 kWh.
Factors affecting efficiency
- Room insulation
- Thermostat availability
- Heating method: air vs surfaces
- Heat retention after shutdown
Direct heat heaters with thermal mass are the most efficient. They warm solid surfaces that keep heat longer and reduce energy waste.
Why UDEN‑S is the smart choice
UDEN‑S heaters use direct heat and contain a ceramic heat accumulator that stores warmth and releases it after turning off.
Benefits:
Only 50 W per m²
Heats up quickly – 10–15 minutes
Keeps heat up to 2 hours
Silent and doesn’t dry out the air
Example:
A 10 m² room only needs a UDEN‑500 model. If used for 6 hours per day, monthly cost will be around 150–180 UAH.
Conclusion
The most efficient heater is UDEN‑S – it’s smart, effective, and saves money.
UDEN‑S | Next-generation heater.