Choosing bathroom radiators

Author: dpinning  //  Category: Bathrooms, DIY Tips, Radiators

Before you choose your radiator, it is essential to know how much heat you require in this room, so you can decide on a radiator that gives you adequate output. 

Heat output is measured in British Thermal Units (BTUs).  In order to calculate the amount of heat output your room will require, you first need to work out the volume of your room in cubic feet by multiplying the room’s height by its width and then by its length.  The volume then needs to be multiplied by five, to give the heat output required in BTUs.  This gives you an approximate guide, which can be refined further, for example by adding 15% if your bathroom has two outside walls, and a further 15% if there is no loft insulation.  Always round up the output figure to the nearest suitable radiator.

Your bathroom can be heated by a radiator, a heated towel rail or a combined towel rail and radiator unit.  You can find radiators and towel rails to match your chosen décor and your bathroom tiles, whether traditional or contemporary.  Valves are usually supplied separately, since the type of valve you require depends not only on the radiator, but also on the location where the pipework comes into the room, i.e. through the wall or up from the floor.  If you are installing a completely new heating system, you will be able to decide on the position of pipework.  Otherwise, you may prefer to base your decisions around the existing pipework. 

If you opt for a heated towel rail, you might want to consider a dual fuel system, which enables the towel rail to heat up when your central heating system is switched off.  You simply turn off the valve, and then you turn on the rail’s own electric element.  This is an ideal solution if you prefer warm towels all year round.

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