Just like all the other reviews this product is a total scam and I strongly advise everyone to keep well away.The two heaters are tiny and useless.The casing of the heaters are made of metal and the appliances are neither earthed nor fused – this could lead to electrocution if a fault arose. This is a clear breach of British Standards!I have tried to contact the seller by email but it was just bounced back as “undeliverable”.