I let my equipment, including tubes, get down to around 55 degrees fahrenheit in the colder months of the mid-lower South. If in the higher North, I'm not sure I would trust in house temps in the 20s. Friends have a camp in Adirondacks that is closed for the winters. I'm sure the inside temps get into the low 20s but they only have some basic TVs that can be replaced cheaply but those have stood up well.
Will audio gear be ok in unheated house
I have a cottage. I drain the pipes and the house is left unheated over the winter. I have been taking my audio gear home (except for the speakers) when I leave in the fall for theft worries, but mostly because I am not sure the equipment will be OK in an unheated house in an often damp environment until the late spring when I return.
It is a pain taking it back and forth and I would prefer to leave it there. Maybe in garbage bags with some bags of dessicant in the garbage bags.
Anybody have any experience with this. I have been unable to find a good answer searching the web.
Thanks