Details

The Dimplex Cassette 1000 Optimyst Electric Fireplace brings the look of a real fire into your space using fine water mist and light to create a convincing flame and smoke effect. There’s no heat, ash or smoke - just a clean, calming visual experience that works well in both modern homes and commercial interiors.

This electric fireplace is made for flexible installation. It can be fitted into media walls, custom joinery, or open-plan designs, either as a standalone feature or part of a larger setup. The unit runs for up to eight hours on one tank of water, or it can be connected to a water supply for continuous use. There’s no need for a chimney or ventilation, and it operates quietly in the background.

When purchased from Stoves Are Us, this Dimplex Fireplace comes with expert guidance, prompt delivery, and UK-based customer support. It’s a straightforward and stylish way to add atmosphere to a space.

Features

Creates a realistic flame and smoke effect using fine water mist and LED lighting
Provides a clean, ambient focal point with no ash or smoke
Offers up to 8 hours of continuous flame from a single water tank
Can be plumbed into a water supply for uninterrupted operation
Quiet, low-maintenance design with no need for a chimney or ventilation
Fits easily into media walls, custom joinery, or open-plan room features
Suitable for a range of settings including modern homes, offices, and hospitality spaces
Supplied by Stoves Are Us with expert advice, fast delivery, and UK-based support

Additional Specifications

SKU	400001275
Product icon	Estimated 7-10 Day Delivery
Brand	Dimplex
Flame Effect	Opti-Myst
Fuel Type	Electric
DEFRA Approved	No
Chimney Type	No Chimney Required
Width	1015mm
Height	260mm
Depth	300mm
Built From	Cast Iron
Style	Contemporary
Colour	Black
Heat Output	2kW
Fuel Bed	Logs

Heat Output Estimator

Unsure what size of Stove or Fire you need?

Try our handy Kilowatt Calculator to give you a rough idea what size of appliance you will need for your room.

Showroom

Yorkshire Showroom - Open

StovesAreUs, Huddersfield, offers a 2000 sqft showroom of the best in home heating, furniture, outdoor cooking, and electrical appliances, including range cookers and ovens. Please visit our showroom page for details on opening times.

We're not at full capacity in our new showroom just yet, please bare with us, there's more products being added daily. We recommend giving us a call before travelling to ensure we have on display what you're looking for.

Our showroom is conveniently situated in Huddersfield with easy M62 access for visitors travelling from Leeds, Manchester, York and Liverpool. The shop features well-known brands such as Rangemaster, AGA, Gazco, Kettler, Ooni and more with exclusive offers and deals you can only get by visiting our brand-new Huddersfield showroom.

Delivery & Returns

Free Next Day or Day of Choice Delivery

Orders over £100 (to most UK mainland addresses) qualify for FREE delivery.
Place your order before midday (with in-stock items) for next working day delivery or choose a delivery date that suits you.
Orders under £100 are subject to a £6.95 delivery charge.
Deliveries are made Monday to Friday.
Weekend delivery (Saturday or Sunday) is available at an extra cost – contact us to arrange.

Click & Collect

Would you like your item faster? Use our Free Click & Collect service.
Available on in-stock items from our warehouses.
When placing your order, simply add a note stating your preferred collection date.
If you’re unsure about collection options, just get in touch, we’re here to help.

Delivery - What to Expect

Our standard deliveries arrive via a 10-tonne lorry (similar in size to a bin wagon or fire engine), equipped with a tail lift and pallet truck.
Access must be suitable: solid, level surfaces (no gravel, steps, steep slopes, or grass).
For palletised deliveries the driver will move the pallet to the nearest accessible point, but cannot go over unsuitable terrain or carry goods indoors, though may place them inside a garage if accessible.
If you have narrow gates, restricted access, or other challenges, please let us know in advance so we can make suitable arrangements.
Our free service is a one-man delivery. We recommend having someone available to assist, especially for larger items.
The delivery driver is not able to unpack or install your goods unless this is a service you have selected.

Checking Your Delivery

On delivery of your palletised goods, the driver will wait up to 10 minutes while you inspect the item(s).
Please check your goods before the driver leaves. If there is any damage or the driver refuses to wait, note this on the delivery slip (e.g., “Driver did not wait – damage unchecked”).
For any damage found, mark the delivery note clearly and contact us immediately.

Missed Deliveries

If you miss your pre-booked delivery, a re-delivery charge may apply.
For smaller items sent via courier (e.g., stove glass), the courier will leave a note with redelivery instructions if you’re not home.

Additional Delivery Notes

Accessory items like fitting kits and liner packs may be sent separately via courier on the same day. You’ll receive email confirmation if this is the case.
Delivery times are generally between 9am–6pm, Monday to Friday.
Delivery depots may send SMS updates, but these aren’t guaranteed.

Please DO NOT book installers, plumbers, electricians or other contractors until your goods have been delivered and checked, as delays can sometimes occur beyond our control.

Frequently Asked Questions

How much does delivery cost?

Most of our items come with free standard delivery to mainland UK when you spend over £100, but some larger or more remote deliveries may incur additional charges. You can view your delivery cost by entering your postcode at checkout before completing your order.

Do you deliver to all parts of the UK?

Yes, we deliver across the entire UK, including the Scottish Highlands and Islands, Northern Ireland, and other offshore locations. To check the exact delivery cost to your address, simply enter your postcode at checkout.

Is Click & Collect available?

Yes! We offer Click & Collect on a wide range of our products. Simply call our customer service team to check if your chosen item is eligible. Once your order is ready, we'll notify you with full collection details, including opening hours and what to bring with you.

Do you deliver to the Republic of Ireland (ROI)?

Yes, we do deliver to the Republic of Ireland. Simply select Ireland as your delivery country at the checkout to view shipping options and charges. Please note that delivery times may vary depending on the item, especially for larger or heavier products like stoves and fireplaces.

When will my order be delivered?

We offer a range of delivery options, including next day delivery on many of our products when ordered before the cut-off time. Delivery times for larger or made-to-order items may vary, each product page displays estimated delivery times to give you a good idea of when to expect your goods.