View the thread, titled "Redbrick house from 1904 - Already has underfloor heating" which is posted in Water Underfloor Heating Advice on UK Plumbers Forums.
Short answer - no.
Currently unless your needing to replace your heatsource AND are off gas grid then it's pointless.
Give it 10 years...
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Reply to the thread, titled "Redbrick house from 1904 - Already has underfloor heating" which is posted in Water Underfloor Heating Advice on Plumbers Forums.