01 — Heaters compared
Heaters compared
02 — Key facts
Key facts
- Heaters checked
- 39
- Power range
- 6–7.5kW
- Cheapest
- £50
03 — Match the listed output to your room
Match the listed output to your room
Start with the room-volume range for the model you are considering. The 6kW Harvia Wall E SW60E lists 5–8m³, while the 6kW Narvi NC Wi-Fi listing gives 5–9m³. The Tylo 6.6kW models shown here list 4–8m³. These entries share similar outputs, but their stated room ranges are not identical.
The Helo Rondo has a listed output of 6.5kW and a room range of 5–18m³. The wood-burning Narvi NC 16/20/24 is listed at 7.5kW for 8–24m³. Keep that separate from your electric-heater comparison.
Some entries do not provide a usable room-volume range. If you are considering the Harvia Spirit, standard Narvi NC or Tylo Sense Commercial 6, confirm the room sizing before choosing.
04 — Compare controls and electrical phase
Compare controls and electrical phase
Check what the listed price includes. The Harvia Wall E starts at £475, but its name explicitly says controls are not included. The Tylo Sense Sport has a built-in mechanical panel, while the Sense Elite lists an Elite Cloud WiFi Control Panel.
The Narvi NC Wi-Fi entry has a mismatch: its name mentions Wi-Fi, but its controls field says manual. Confirm the control arrangement rather than relying on either detail alone.
Most electric entries list single-phase power. The Tylo Sense Combi Pure and Crown Combi Elite list three-phase power. Check the phase for your chosen model before buying.
05 — Frequently asked questions
Frequently asked questions
Not sure what size you need?
Work out the right kW for your room from its size, insulation and glass.
Heater size calculator