CeraPhi Energy - based in Great Yarmouth and Houston in the USA - is carrying out a feasibility study for 16th century Kentwell Hall in Long Melford.

The company aims to design a "non-invasive world-first multi-well deep geothermal heating solution" using its proprietary monobore borehole system to "significantly" cut carbon emissions and operating costs.

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The ancient Tudor hall currently relies on an aging oil boiler which "barely warms" it, it says.

CeraPhi says it is confident it can engineer a commercially viable solution that can be accommodated seamlessly into the building.

It will use 21st-century geothermal technology using its closed-loop deep ground source system - which operates at depths of up to 1500m (1.5km).

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Multiple deep wells........

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