They are cheap and light, but noisy and the warmth can be quickly lost if you let in a draught. These use an electric coil to create heat and then blow the warmth across the room. Retro kitchen timer portable#However, they struggle in large spaces. Like most portable heaters, you can pick one up for under £20, but can easily spend over £100, too. They're light and portable and cost around 80p per hour to run (based on a 1500W heater on maximum setting). Often used outdoors as patio heaters, these radiate heat directly onto objects, rather than relying on convection to circulate the warmth. Prices for a good model start roughly at the £50 mark. Oil-filled radiators are relatively cheap to run, costing as little as 40p per hour at today's prices, and there is no need to replace the oil. Oil-filled heaters tend to be more cumbersome, as the oil adds weight, and can take a long time to warm up – upwards of 20 minutes – but they stay warm for a long time once they're turned off. They are convection heaters, meaning that as the heat rises it draws in cooler air in underneath to be heated in turn - an effect that works best in well-sealed rooms. They use an electrical current within thermal oil, heating the oil and circulating it around the heater, a bit like water in a radiator. How much does it cost to run an electric heater? Oil-filled heatersĪccording to Bennett, these are the most efficient on the whole.
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