The Warmup Circular Mirror Demister is a discreet electric heating pad designed specifically for round and circular bathroom mirrors. Installed directly onto the rear of the mirror, the ultra-thin heating film gently warms the glass to help maintain a clear reflection after showers and baths.
With a 560mm diameter and only 0.4mm thickness, the demister sits discreetly between the back of the mirror and the supporting surface. Its self-adhesive backing allows for straightforward installation, making it suitable for both new and existing bathroom mirrors.
The Circular Mirror Demister operates at 200W/m², providing consistent heat across the surface of the heating film. This allows the mirror to warm faster than the surrounding bathroom environment, helping to prevent steam and condensation from forming on the glass.
The 200W/m² design also causes less thermal expansion of the mirror compared with higher-powered traditional demisters, with Warmup stating that mirror expansion is reduced by approximately 20% compared with 250W/m² demisters.
The demister takes the form of a flat, electrically heated film with a self-adhesive backing. It is applied directly to the rear of a suitable mirror, allowing the heating element to remain completely hidden once the mirror is mounted.
At only 0.4mm thick, the demister has a very low profile and can be installed without taking up significant space between the mirror and its supporting surface.
The demister can be connected to the bathroom's existing lighting circuit so that it operates automatically when the light is switched on. Alternatively, an independent controller can be used to provide power when required.
The Warmup Circular Mirror Demister is particularly suitable for:
For larger mirrors, Warmup states that multiple demisters can be combined to provide coverage across a greater surface area.
The demister should be installed onto the rear of a suitable mirror in accordance with the Warmup installation instructions. The mirror must be compatible with a rear-mounted electric demisting pad.
The heating film should not be cut, folded, overlapped or modified. Electrical connections should be completed by a suitably qualified electrician and installed in accordance with current UK electrical regulations and the requirements of the bathroom installation.
The Warmup Circular Mirror Demister provides a discreet and effective heating solution for round bathroom mirrors. Its 560mm diameter, 0.4mm ultra-thin profile, self-adhesive backing and 200W/m² heating output make it straightforward to install while remaining virtually invisible once fitted.
With automatic or independent control options, IP65 protection and a 5-year warranty, it provides a practical way to add heated-mirror functionality to compatible circular bathroom mirrors.

Warmup Circular Mirror Demister
560mm