Quote:
Originally Posted by FlyingScot
Yes, this is why I am confused. I understand that a minisplit on warmer days is better than a minisplit on colder days. But the question is whether a minisplit on colder days is better than oil on colder days. If a minisplit is 30% better than oil in general, and oil is assumed to be always at 100% of its own efficiency, then doesn't the minisplit need to fall to 70% efficiency before oil is equal, and 69% before oil is more efficient? If all of this is the case, then the minisplit on a -13 day at 85% is still the best choice
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Isn't the efficiency of an oil burner on average around 85%?? I realize some of the newer ones are better but for the most part 85% is pretty standard is it not?? Which would mean the mini split at -5 would be far more efficient would it not??
Dan