Keeping the cabin above freezing during a cold snap without running the heat pump full-time

Question

Down here in Central Florida in late January 2026 we are experiencing unseasonable temps in mid 20s (F). I know, I know, but for us this is COLD 🥶. So I used the Pebble tank heaters to keep my baby from freezing, since I had not bothered trying to 'winterize' the trailer yet (after all, last week it was 79 degrees!). But I could not figure this one out: Is there a way to set the CABIN TEMP control to keep the interior of the trailer above freezing (say 35-40 degrees) but without running the he…

Pebble Community member · Answer

Similarly I haven't re-winterized since our return last week. With temps in the low 20's, I turned tank heaters on, set cabin temp to LOW, fan on 1 and Recirculate. With a temp transmitter inside, I monitored the cabin temp at 57.

Pebble Community member · Answer

I ran into the same question when we got a similar cold snap in the northwest (overnight lows in the mid 20's) a week or so ago. I didn't figure out a way to set it to maintain 40 degrees like I wanted to; the lowest setting seems to be around 60 like you say. I didn't ever really figure out what "LOW" meant. Enabling a setting down to around 40 seems like something that could be made available by a software OTA to the thermostat, so I suggest we ask Pebble for such an enhancement. The best…

Pebble Community member · Answer

Exactly the same strategy I decided to use. Yeah, maybe we can get Pebble to work this. Thanks for the feedback.

Keeping the cabin above freezing during a cold snap without running the heat pump full-time

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