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Not only do Eskimo’s Outline range of radiators look beautiful with their clean lines and multitude of finishes and colours they also utilise Eskimo’s unique aluminium heat exchanger “engine” that provides huge heat output from a deceptively small, slim package.

What is less well known is that the Outline range also features extremely low water volume – an average Outline radiator uses only 1/3 of the water of a standard steel panel radiator and only 10% of the water required by cast iron radiators.

“Why do I care about water volume?” you’d be entitled to say, as after all most people use a closed system that only needs filling up very rarely, so it’s worth looking at the physics:

It takes 4.18kW to raise the temperature of 1 litre of water by 1ºC in 1 second and an average steel panel radiator has a water volume of at least 5 litres. If you have 10 radiators in your system that’s 50 litres of water that you need to heat to 70ºC before that radiator starts delivering its rated performance. It also means about 17.5kW of power used if you raise that 50 litres of water to temperature in 10 minutes.

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BUT if your radiators only use 1/3rd of the water, then you use 1/3rd of the power to get the radiators to temperature, meaning the radiators start working much more quickly, meaning you don’t need to program your heating to come on ½ an hour before you get home, you program it to come on 10 minutes before you get home – added up over the course of a year for an average home that would mean a saving of something like 1606 kw/hours or £190 at current energy prices and a significant reduction in your carbon footprint.

The other problem with a system having a high water volume is that it takes a long time to cool down. We’re all familiar with the vagaries of the British Climate, rain one minute, sun the next. That means your heating system has to cope with huge variations over the course of a day. If your heating system takes 40 minutes to cool down when the spring sun comes out your only way of preventing things getting uncomfortably hot is to open the window, at which point all that heat you’ve paid for and which has used up precious natural resources disappears into the atmosphere.


December 1st, 2011

Posted In: Electronic Radiators & Heating Design, Homepage news