A 55 gallon barrel of water can weigh up to 450 lbs. How and where will you store it? Consider the water included, or you can buy one. It's a great way to save space and store water. You could even store these in a shed.
Greenhouse design being used in Colorado at 30 below 0 temps with no added heat other than solar and stored energy. it will have 55 gallon barrels filled with water only. These will be stacked against the inside back wall 3 high and 7 wide.