Question: what your most famous invention/

Ivan Merrick answered on 11 Mar 2019:

I’m not sure if you are asking if I have invented something or who is my most favourite inventor.

I have invented and hold a patent for a device to help prevent the loss of heat up the chimney of an open fire in a domestic house. House do not tend to be built with open fires these days but there are still many houses in Ireland which have an open fire. The house owners have often added central heating to the house but do not realise that a lot of the heat the central eating generates goes up the chimney of the open fireplace. Using maths I calculated that if the difference in temperature between the inside and outside of the house in 20 degrees Celcius then One Million Litres of air, per day, will go up the chimney. That is a lot of air. The device I invented which sits on top of the chimney stops almost all of this air going up the chimney. This means the central heating boiler burn less fuel as it no longer has to heat the one million litres that would have gone up the chimney.

My favoutite invertor is actual two people, Wilber and Orvell Wright ( known ads the Wright Brothers). They invented powered flight. Without them we would not the aeroplanes we have today.