So I am definitely going to need some storage for my attack. I have been just firing when my water temp gets down. Without any storage this has become quite a juggling act. Especially this morning at 4 am when I heard my oil furnace come on because the water temp had dropped below 100 and my thermostat was cranked up to get that heat from my wood. So my question becomes. How much pressure do you need. I am seeing there r people building tanks out of wood. Others are using old propane What I am thinking... My system runs about 10 to 12 psi. I am a pretty decent DIYer(except for the attack that is giving me a run for my money) I have access to a couple 250 gal fuel drums. What do you guys think about rigging those tanks for storage?