

18” Electric Fireplace Insert 750W/1500W Fireplace Heater
A sleek 18" recessed electric fireplace that adds realistic flame ambiance and 5,000 BTU of warmth to spaces up to 37m².
● In stock
Free delivery · 2–4 working days
Free to UK mainland (DHL/DX/DPD), in-stock items ship within 24h. Excludes Channel Islands, Isle of Man, Scilly Isles & Scottish Islands; a surcharge may apply to some remote areas.
30-day returns
Change your mind within 30 days. Sold & shipped via Costway.
Manufacturer warranty included
Covered against manufacturing defects. Real UK aftercare.
This slim Costway 18-inch recessed electric fireplace insert is an electric heater built to disappear into TV stands and mantels while still delivering real warmth. Two power settings – 750W and 1500W – heat rooms up to 37m² (400 sq ft), letting you dial in just the right level of warmth for a snug or living room. On 1500W it costs around 39p per hour at 26p/kWh, halving to roughly 20p on 750W, and being a 100% efficient electric heater every watt becomes heat for effective zone heating. The flame effect offers 3 colours across 5 brightness levels and can run with or without heat, so it works as decoration all year round, not just in winter. Control everything from the unit's dual controls or the included remote from across the room. Built-in overheat protection and UKCA certification keep things safe, and its slim profile (50.46 x 13.92 x 45.79cm, just 8kg) makes installation easy – simply keep the top and back 5cm clear of walls or cabinets for ventilation. The body is metal and tempered glass for a quality feel. In the box: the electric fireplace insert, remote control and instruction manual.
Highlights
- 5,000 BTU output heats spaces up to 37m²
- Two heat settings: 750W and 1500W
- 3 flame colours with 5 brightness levels
- Flame effect runs with or without heat for year-round use
- Overheat protection and UKCA certified
- Remote control plus on-unit controls
Description
This electric fireplace insert puts out 5,000 BTU and heats rooms up to roughly 37m² (400 sq ft), with two power settings (750W or 1500W) so you can dial in the right level of warmth. Built-in overheat protection and UKCA certification keep things safe.
The flame effect comes in 3 colours across 5 brightness levels and can run with or without heat, so it works as decoration all year round. Control everything from the unit's dual controls or the included remote from across the room.
Its slim profile fits neatly into TV stands and mantels. Keep the top and back 5cm clear of walls or cabinets for ventilation.
What's in the box
- Electric fireplace insert
- Remote control
- Instruction manual
Specifications
- Heat output
- 5,000 BTU
- Power
- 750W / 1500W
- Coverage area
- 37 m² (400 sq ft)
- Voltage
- 220-240V, 50Hz
- Current
- 12.5A
- Dimensions
- 50.46 x 13.92 x 45.79 cm (L x W x H)
- Power cord length
- 1.8 m
- Net weight
- 8 kg
- Material
- Metal, tempered glass
Ideal for
18” Electric Fireplace Insert 750W/1500W Fireplace Heater — FAQs
What room size does the 18" Electric Fireplace heat?
It heats spaces up to roughly 37m² (400 sq ft), suitable for a snug, bedroom or average living room.
How much does the 18" Electric Fireplace cost to run per hour?
On the 1500W setting it costs about 39p per hour at 26p/kWh, falling to around 20p on the 750W setting.
Can I run the flame effect without heat?
Yes. The 3 flame colours and 5 brightness levels can run with or without heat, so the insert works as decoration year-round.
How much clearance does it need?
Keep the top and back at least 5cm clear of walls or cabinets for ventilation. Its slim 13.92cm depth helps it fit neatly into media units.
What's in the box?
You receive the electric fireplace insert, a remote control and an instruction manual. The unit is UKCA certified with built-in overheat protection.
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