Cold exposure truths

[Bradfo69]

O.k., I admit it. I worry too much. I've got not one, but several thermometers around my greenhouse which, by the way, is only 8 x 15. Two of them are even the wireless type that radio back temp and humidity into the house where the receivers sit on my nightstand.

I have a mixed collection and keep most of the paphs and phals in the house as opposed to the GH.

I've been having some issues in settling on a heat system and the plants have had some up and down periods, maybe a night at 62 then a night at 51 then a night at 57 etc. Sometimes I notice it's 51 at 5 p.m., turn it up a bit and it's 57 at two a.m. I will get it balanced out but the other night at around 7 p.m. it was already 53 but supposed to get much colder that night so I added a second space heater before going out for the evening. I didn't trust the first one to operate properly. Well, a circuit breaker tripped shortly after that and I arrived home at 10:15 p.m. to readings between 41 and 43. I quickly reset the breaker and within minutes got the temp climbing back up. I changed out a heater and eventually things spent the night around 53.

How worried should I really be? They didn't approach freezing. It was only for an hour or so. They've had a dip to 47 once before. I'm I too obsessive about all this?