Electricity vs gas space heatingSeptember 18, 2014
Electricity can heat watet with dose to 100 per cent efficiency, bot gas appliances lose some heat to atmosphere as part of 11w combustion process. However, modern gas apptiances can he as much as 95 per cern efficient.
When comparing energy sources to heat water, the ovem.11 energy consumption must Ne considered. Between electricity generation and the electricity consumed to heat watet, a tot ofenergy is lost. Most of tius loss occurs when electricity is generated by burning fossil fuels (tlie conversion process is very inefficient) and energy is lost in die transmission and distribution process.
Burning gas to heat watet produces less greenhouse gas emissions dran electricity. Howevei; gas systems niay not be as eflicient at converting energy into bot watet. L lowever,
gas compares favourably to electricity when considering overall carbon emissions. Gas burners are more powerful than electric heaters so will heat watet a lot fasteL
in New Zealand there is a growing trend to reduce solid fuel heating from fires and wood hurriers, particularly in areas that experience problems with smog. In terrns of efficiency, pellet wood burners can be up to 88 per cent efficient