Ah, the coastal beach house is on Fire Island, NY, where it gets down in the single digits every winter with constant winds off the ocean and salt spray. Uninsulated, closed down for the winter, several outbuildings with padlocks exposed to the weather, both keyed and combination. It gets closed up in late October and not opened until April. Sometimes later/earlier for both.
it's usually a lock that hasn't been operated in several months in those conditions.
I've only had to open a frozen lock a few times, the issues I've had were mostly with padlocks, where it was easy to apply heat to resolve the issue.
Originally Posted by dbledan
I see you are in California...how cold does it get where you live?If it gets below zero I would give it a try. I don't doubt it works in costal areas without a deep freeze but I have been burned by using oils/grease on locks in the winter here. They litterally freeze. They work great again once thawed or you spray some lock deicer in them but then you must relube them.