When would I use a 200 watts per sq. metre rated system?

We reccomend using 200 watt per sq. metre mats in areas that are: Not normally run on a timer, so that an especially fast heat up time is required, or in rooms where you have been unable to install Warmup Insulation Board (WIB). However we highly reccomend the use of WIB, especially on concrete subfloors.
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