How to Heat One Room Cheaply This Winter

1. Use zone heating

Lower the main thermostat and heat only the room you're in with a compact heater.

2. Stop drafts

Close doors, use draft excluders and close curtains at night.

RapidHeat: 400W/800W ceramic heater

Thermostat, remote and timer · 30-day money-back guarantee

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3. Pick a low-wattage heater with a thermostat

A 400W/800W ceramic heater with a thermostat avoids wasting energy once the room is warm.

4. Use a timer

Warm the room before you need it and let the timer switch it off.

5. Keep the warmth in

Heat escapes through windows, floors and gaps. Thick curtains closed at dusk, a rug on bare floorboards and a draught excluder at the bottom of the door all help a small heater do its job with less power.

6. Pick the right room

Heat the room you spend the most time in, ideally a smaller one with fewer outside walls. A small room warms up faster and stays warm longer.

7. Dress for the temperature

Layers, warm socks and a blanket let you set the thermostat a couple of degrees lower without feeling cold, and every degree lower saves energy.

What it costs with RapidHeat

RapidHeat uses 0.8 kWh per hour on High and 0.4 kWh per hour on Low at full power. Multiply by your electricity price per kWh to get your hourly cost, or use our calculator. With the thermostat cycling it off once the room is warm, the real figure is often lower.

How many heaters for your room?

A rough guide for topping up a home that has some heating. Cold, high-ceilinged or poorly insulated rooms may need more.

Room size	Typical room	RapidHeat units
Up to 250 sq ft (≈23 m²)	Bedroom, office, small living room	1
Up to 500 sq ft (≈46 m²)	Living room, large bedroom	2
Up to 750 sq ft (≈70 m²)	Open-plan or draughty room	3
Larger spaces	Alongside your main heating	4

What it costs to run

Maximum cost at full power, for common electricity prices per kWh in your own currency. With the thermostat cycling off once the room is warm, real costs are often lower. Try the energy cost calculator with your exact price.

Price per kWh	Low 400W / hour	High 800W / hour	High, 4 h a day / month
0.15	0.06	0.12	14.40
0.25	0.10	0.20	24.00
0.35	0.14	0.28	33.60

Who RapidHeat is not for

We'd rather you buy the right heater than return the wrong one. RapidHeat isn't the best choice for:

Heating a whole house or open-plan floor on its own
Large rooms over about 250 sq ft (≈23 m²) with just one unit (use two or more)
Bathrooms or anywhere it could get splashed with water
People who want silent, fan-free heat (try an oil-filled radiator)

Common questions

How much does RapidHeat cost to run?

At full power RapidHeat uses 0.4 kWh per hour on Low (400W) or 0.8 kWh per hour on High (800W). Multiply that by your electricity price per kWh. At 0.25 per kWh that's 0.10 per hour on Low and 0.20 per hour on High. The thermostat cycles it off once the room is warm, so real use is often lower.

What size room will one RapidHeat heat?

One unit suits rooms up to about 250 sq ft (≈23 m²), such as a bedroom, home office or small living area. For bigger or draughty rooms, use two or more units in different parts of the room.

Is it cheaper to heat one room or the whole house?

Heating only the room you're in usually uses less energy than heating the whole house. Whether electric heating is cheaper than your gas heating per hour depends on your prices.

What's the cheapest way to heat a room?

Keep the heat in (doors, curtains, draughts), dress warmly, and use a low-wattage heater with a thermostat and timer.

What if it doesn't work for me?

Every order from the official store comes with a 30-day money-back guarantee. Contact support and we'll walk you through the return.

How to heat one room cheaply