In reply to RussSpence:
I stay at Gite La Tapia in the winter but friends have stayed there during the summer. €20.50 per night for a shared room with bunk beds and use of the communal kitchen, showers etc with free wifi. You can pay extra for Marie (the owner) to do you breakfast.
She lets us store ski gear when we're not there (to save costs on flights) but I think you'll have to email her regarding storing civvi kit when using huts in summer.
http://www.latapia.com