Thanks DG-man....That pretty much answers my question on the st2 and, the hr2, now, if I can get fuel consumption on a roid 8/1,.....pretty sure we can get by with 4.5 kw (peak)and, maybe 3 kw (continuous) approx. 6 hrs a day...would have to get rid of storage electric waterheater and, install on demand lp water heat......still looking into storage of lp (how long will it last) and, storage homebrewed biodiesel......is bio even cost effective?(labor and materials)....want stay with-in the KISS category....Thanks for responding.....helps guide me in the right direction......."Stay Safe"........................Mark