Since they don't smell bad, hang on to them.
Ours hang up in the loft where it's above freezing but not by much at this time of year. We do have a fan on a timer in warmer weather, which works a few half hours a day. We don't bother with the initial warmer period, and never had fuzzy mould, only the dry 'good' stuff.
Geraint, some people advocate against eating anything with mould that isn't dry and white (e.g. the charcuterie gurus Ruhlman & Polceyn, but then again they are American and American authors always cover their backs re potential food poisoning claims - they also use curing salts which I never use and apparently I will die soon because of that

).
Others say any colour is fine as long as it's dry mould - I'm inclined to agree with the latter given my experiences with charcuterie where I grew up on the continent, which included white, grey and slightly green-ish mould. Never saw fuzzy mould on any charcuterie... but Olly is still alive and well, so who knows, Olly, you may be right... or have exceptionally strong health

But you do know what you're talking about re fuzzy mould by the sounds of it, my experience is limited to dry mould and I'm just going by the warnings in the books and on websites as we never had anything go fuzzy on us.
Geraint, wiping the chorizo's down with vinegar won't harm them so I'd do that just to be on the safe side

Alternatively, you could let the fuzz mature and be the world's first spicy mushroom grower
I was once told that if you're not sure whether or not you can eat a food item, try giving some to a dog (a pampered dog, that is, not a working will-eat-anything-even-manure dog). If it's dodgy, the dog wouldn't eat it. Don't know if that's true or not, or if I would even want to try that...