OK narrowing it down, (boiler choice) however, the table EKO provides for sizing may as well be written in Latvian. What size EKO ? 2000 sq Log home built 2005. No great rooms or high ceilings. baseboard. Boiler will be 80' from house plans for 1000 gal storage (not sure pressurized or not) Another question is series or parallel ? I want simple operation, oil backup, Thanks in advance for input.