A note in the room advises that the heater should not be used while sleeping as it is a fire hazard. Although there are additional blankets provided, Queenstown can get very cold at night so for a cozy night's sleep, providing a heater that isn't a fire hazard would be welcome.
There are also notes in the room about the hosts sleeping early, so to not use the kettle (which is in the bathroom) after 9:30pm, and ideally not shower after that time either. This would have been good to know before booking as these kinds of requests made us feel a bit more like intruders than guests.
As there is restriction on access to the living room and kitchen (as is noted in the listing), this is pretty much just a place to crash for the night. Very limited interaction with the hosts, and I think they prefer it that way.