last fall I installed a new owb it is a down draft model holds 220 gallons of water i'm heating 5000sq ft two separate structures was wondering if this is enough water or if i should add storage. the boiler i have is rated at 300,000btu it seems like it just gets burning good and clean and it is shutting down is this normal. I also seem to be using quite a bit of wood about 14 full cord last year. the wood I had was only seasoned about 3 months i know not long enough but will this make a huge difference or not. also wondering if i should stay with water or go to glycol so i can put pumps on thermostat to keep from circulating 24/7 and loosing heat to the ground. i used the triple wrap pex for tubing after reading some of the threads here probably not the best decision wish i would have found this site sooner. any info would be appreciated.