I use mine primarily as a sugar house but do have a heated 10x12 RO room that is large enough to use as a workshop for small projects in the winter. It's also where I retail my syrup so it does get used year round for sales and canning. It was easy to justify the expense, my wife simply refused to sell product on Maple Weekend if she had to do it outside. Besides I have a lot of expensive equipment in there and it's nice to be able to keep it separated from other tools and such and keep it locked up.