The former chief executive of Bord Gáis, John Mullins, has invested in Irish home technology company Climote and joined the advisory board.

With the cost of home heating oil and gas at crippling levels this winter, it’s vital to wheedle the best performance out of every cent our fuels cost.

The firm co-founded by businessman and failed presidential candidate Sean Gallagher returned to profit last year after three years of successive losses.