While modern fireplace gives us some benefit, it can do as some hassle also. Firstly, it is a little bit expensive. Also, if they are not properly being taken care of, they may be prone to failure because they are mechanically-oriented. Since it is a mechanical machine, it needs electricity to power up the various parts of the machine such as the fans, motors, etc. So, this device cannot be used if there is power brown out.
Wood offers a renewable and sovereign source of energy. Wood fuel is available in plenty and there are lower chances you can lack ready wood fuel for sale. As for oil and gas, they are non-renewable so you can expect them to run out any time without prior warning. As for electricity, it is produced by burning fossil fuels which a limited commodity meaning it can run out any fine day.