
Heatmat 7040L025 Demista Mirror Demister 18W 400mm x 250mm
7040L025
Heatmat 7040L025 Demista Mirror Demister 18W 400mm x 250mm
The Heatmat 7040L025 Demista Mirror Demister offers a practical and luxurious solution to keep mirrors clear of condensation in bathrooms. Ideal for new build or renovation projects, it ensures steam-free mirrors in hotel developments and private bathrooms. This mirror demister can be wired through the lighting circuit and activated with a simple switch, heating only when the bathroom is in use to clear condensation from showers or baths.
The demista™ by Heat Mat range is made in the UK and comes with Heat Mat's Lifetime Warranty, ensuring high quality and peace of mind for all installations.
Features
- Clear Mirrors at All Times: Automatically clears steam, ensuring mirrors are always usable.
- Energy Efficient: Consumes up to 50% less power than leading alternatives.
- Versatile Applications: Regularly used in hotels, new builds, and refurbishment projects.
- Ideal for Wet Areas: Perfect for bathrooms, ensuites, wet rooms, and leisure facilities.
- Wide Range of Sizes: 17 standard 230V sizes in stock, with over 400 bespoke options available for a perfect fit.
Technical Data
- Heating Element: Carbon with copper connections
- Supply Voltage: 230V +/- 10%
- Power Output: 200W/m²
- Alternative Voltages: 12V & 24V units available
- Housing: IP44 rated for durability and safety
- Insulation: Double insulated for added protection
- Dimensions: 400mm x 250mm
- Coldtail Lead: 1m 0.75mm² double insulated cable
✅ Keep your bathroom mirrors clear with the Heatmat Demista for energy-efficient and reliable performance!

Range | Heatmat Demista |
Product | Mirror Demister |
Wattage | 18 W |
Length | 400 mm |
Width | 250 mm |
Nominal Power Output | 18 W |
Delivery Options:
- PRIORITY DELIVERY – Next Working Day (All items in stock and ordered before 3 pm) - £7.08 inc-VAT. (£5.90 ex-VAT)
- Orders Over £100 (before VAT): We offer free standard shipping on all orders shipped to UK mainland addresses
- Orders under £100 (before VAT): Our standard delivery fee to UK mainland addresses is £5.90 ex-VAT (£7.08 inc-VAT)
*Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £12 ex-VAT for all orders (Prices subject to change).
Items requiring specialist shipping:
- Orders containing Solar Panels, Batteries and/or Inverters: Up to 50 qty will be dispatched on a pallet and incur a £120 ex-VAT delivery charge**.
**Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £180 ex-VAT (Prices subject to change).
Contact us if you have any further questions.