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ProlapsedMasshole t1_j7gaiqf wrote

Reply to comment by minimally_social in Heat Pumps During Recent Cold Weather by thread100

It's designed to do that below operating temps. Bottom of page 10 in your manual.

This was the first time I've hit the limits on mine, but still see them as the best investment I've made in our house by a lot and really don't regret going hyper heat at all.

Our house still has legacy heating, so we were fine this weekend, but anyone concerned with this kind of setup exclusively could cover these edge cases with a space heater or two as a temp setup.

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minimally_social t1_j7gsg1m wrote

The rating I was referring to was the "guaranteed operating range" of -25c to 21c on that page.

We dropped below that on Friday. The tech that came out said he was getting a bunch of calls with the same problem.

It wasn't all of them, but does seem to confirm that the -25C threshold is when the probability of failure increases.

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