Here we get extreme heat 100 plus high dew points but also some sub 0 weather. A year ago it was under 0 for 10 days straight. My friend just completed a brand new shop with extreme insulation and had a split mini installed. He was told and had to make a choice for a bigger unit that would have no trouble keeping the garage warm but would be really too big to keep humidity low because it would cool so easily it would hardly run. So he chose making sure to be warm and added a small humidifier.