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Home > Fires, Fireplaces & Stoves > Electric Fires

Dimplex Bespoke Cassette 400 Optimyst Electric Fire

Why is this?
From £15.40 per month

The smallest model in Dimplex's range of bespoke cassette fires, the Cassette 400 allows you to create a unique feature in your home. Using established ultrasonic technology to create an ultra-fine water mist that rises up and works with the under fuel bed lighting to give a fully three dimensional fire effect. The result is so authentic that it is regularly mistaken for true flames and smoke.

The Dimplex Cassette 400 is designed to be dropped into a pre-constructed hole where the log effect becomes the visible part. This could be within a stud wall with TV above, a corner feature, room divider, this options are endless.

None of the Optimyst Bespoke Cassette fires include a heater. They are designed purely for aesthetics - something you can turn on no matter what the temperature that will bring any room to life with its incredible realism.

Optimyst cassettes can be the vital ingredient for creating an individual piece of bespoke furniture or an eye-catching focal point. They allow you to create opportunities that would not be available with gas or solid fuel because of safety issues or unwelcome heat – such as embedding the fire in the wall directly below large flat screen televisions, or in a bedroom.

Alternatively the products can be fitted into a bespoke surround to produce a stunning suite. Optimyst Bespoke – catering for anyone looking to create a truly individual statement, utilising the world’s best in electric flame installation.

Dimplex’s Optimyst Cassette 400 incorporates the world’s first truly 3D electric flame effect,  has been specially developed for design installations, combining the unique effect with installation flexibility to offer a series of cassette models in varying sizes that offer fuss-free flames all year-round, without the mess and safety concerns commonly associated with the naked flame.

Dimplex Optimyst’s unique technology creates the illusion of real smoke and flames – but without the heat - for an effect that truly has to be seen to be believed.

  • Realistic Optimyst flame and smoke effect
  • Fully variable flame and smoke intensity control
  • Remote control
  • Quick-fit IEC (kettle) connection
  • No heat
  • Medium width cassette 400 (model: CAS400NH)
  • Inset Height (mm): 171 / Width: 405 / Depth: 216
  • Power consumption 200W

Cassette 400
Heater Type
N/A - No Heater included
Choice of heat settings
Fitted Plug
Cable Connection
Quick-fit IEC (kettle)
Flame Effect Independent of Heat
Flame/Fuel Effect
Opti-Myst® Log Effect
Wall Mounted or Inset
Power Consumption
1 Year (additional 1 Year available on registration)
*All dimensions are offered as a guide only and subject to change. These sizes are not to be used for any building preparation.

Dimplex Bespoke Opti-Myst Cassette 400

Estimated Delivery for this product is 3 to 7 Days*

We offer Free Delivery within Mainland UK on all our products.

Smaller electric fires will be sent using a standard courier company. Larger electric fires and fireplace suites will be sent on a pallet. Pallet deliveries will be brought to your front door (subject to access) and you will need to arrange adequate means to take your order into your home. Under normal circumstances this may take 2 people.

You will be contacted prior to despatch to arrange a suitable delivery day. A signature will be required on all deliveries.

*Subject to stock at suppliers

Due to the continuing rise in costs for delivery to Highland areas, we have reluctantly concluded that having absorbed these costs for a long time this is regrettably no longer possible and we have had to introduce a fee for delivery to certain Scottish postcodes. Customers that live in the affected areas will be contacted when we process your order to be advised on specific extra charges and have the opportunity to confirm the order.