Single room MVHR, better extractor, other options?

[Haddock78]

Hi,

 

we have a separate annexe to our house, built in 2019. It consists of a single-room bedroom/kitchen which has electric heating, and a tiny corner (~2x2m) shower/wc. 

The bathroom has a very basic manrose extractor fitted and no heating. Even when the rest of the annexe is a comfortable temp the bathroom is like a fridge. When the extractor is running it feels like there is more cold air coming in than going out (I'm pretty sure it's not running backwards...). On windy days it definitely backs up.

What would be a better solution? Just a higher spec conventional extractor or something like a single-room mvhr unit? There seem to be a lot of conflicting opinions on how well they work - does anyone have any positive or negative experiences with them, and any recommendations for specific models? Anything more elaborate seems like overkill in such a tiny space.

Thanks

[JohnMo]

I would just install a dMEV fan.  These run all the time at a low flow rate and are almost silent.  Something like a vent axia, would do the job.

 

A decent electric towel rad, on timer thermostat, would do the heating.