Generally an electrical convection heater of the normal size is enough to heat a normal log cabin including our old 58mm cabin we worked in.
You can also consider underfloor heating which is very popular these days and of course wood burner / wood burning stove. For this though you will need to seek the advise of a qualified installer. If you were to do this, we would also recommend to ensure the inside of the cabin is ventilated and treated.
We would not recommend a gas heater in your log cabin without adequate ventilation due to gasses being built up.
It is always a good idea to install a carbon monoxide detector if you are using a gas heater.
To help retain the heat inside the cabin, we would recommend a thicker log as this will be better at retaining the heat inside, normally this would be 40mm logs or above.
It is also a good idea to insulate the roof and the floor of the cabin, please see the below for our advise on how this should be done. We do also offer our own insulation kits, that i have linked below:
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