Our handy estimating guide:

Room Size Wattage
Below 5m² 250 Watts
5 – 8 m² 300 – 350 Watts
8 – 13m² 500 – 600 Watts
13 – 15m² 700 Watts
15 – 21m² 850 Watts (Ceiling only); 1000 Watts (Wall only)


Estimates assume 2.3m to 2.5m ceiling height.
Contact your herschel dealer if your ceilings are higher.
For “colder” rooms, choose the minimum room size / maximum power each time.
For larger rooms, use multiples of the above heaters.

Choose from:

Select XL White

Select XL White
For heating that blends-in with the background. Find out more…

Select XL Glass

Select XL Glass
For an attractive high-gloss finish in white or black. Find out more…

Select XL Mirror

Select XL Mirror
A heater and a mirror that won’t steam-up! Find out more…

Select XL Towel heater

Towel Heater
Heat your bathroom and warm your towels at the same time. Find out more…

Aspect XL Patio heater

Aspect XL
The stylish zero-light outdoor heaters. Find out more…