In a third case, a pay-party was held in a derelict private home heated by a liquid paraffin gas heater and powered by electricity which was bypassing the meter.
It is heated by a small gas heater that runs for 45-minute intervals.
He was also the owner of a successful gas heater and air conditioning manufacturer.
Then, the same system costs as much to operate as an efficient gas heater.
A gas heater had to be turned on to heat the bath water.
If operating correctly the main emissions of a non-flued gas heater are water vapour and carbon dioxide.
There are gas stoves, gas heaters, gas pokers and gas appliances of all kinds.
I have no information about the number of inefficient gas heaters installed or the extent to which they are used.