moneysupermarket.com: npower ONE

Commenting on today's launch of npower ONE, Paul Schofield, head of utilities at price comparison site moneysupermarket.com, said: "npower ONE - with its fixed price and basic boiler cover - is £230 more than npower SOL10, which is currently the cheapest product on the market. So customers need to weigh up whether the fixed price until August 2009 and the boiler cover are worth the extra cost.

"The cover is basic, not including pipework, radiators, radiator valves, expansion tanks or hot water cylinders. And at an extra £5.71 per month, npower ONE's full annual boiler service would push the tariff close to £300 more than SOL10.

"After the recent inflation-busting price hikes, finding the best energy deal for your needs is imperative.'Two in one' deals take away the hassle of shopping around for separate products but do they offer good value for money? With npower ONE, customers who want the freedom to transfer deals and cover tailored to their needs, may well be better off buying their boiler insurance and energy separately. As an emergency add-on to your home insurance, boiler cover generally comes in at around £60."