You are exactly right Yoder, how well insulated your buildings are is the key. Also the temperature you keep them at. I have a 50x60x16 shed but I only keep it at 55 degrees which for me is perfect for a shop. It has in floor radiant and is insulated everywhere to the max. House is insulated the same.
When all my loads are calling the G200 just holds its' own and takes a long time to catch up but that is in extreme weather conditions, 20 to 30 below and howling winds.
Tomorrow we will fill the wood shed for probably the last time this season, crappy winter again. Sure glad I have a rain cap on my G200 since we are supposed to get 2 to 3 inches of rain the next few days.