Built new building 48X36 in middle of 22 acres of woods have 5 300ft runs total 1500ft of 5/8 pex in concrete slab I also have 80 gal electric hotwater tank in bldg. Would like some input on best wood boiler. I am open for indoor or outside boiler. would like input from others. I have burned wood in longwood for 20yrs they can handle wood 5ft long 12 inchs dia. but wanted to go with radiant Thanks