I'm looking at buying a house with oil boiler, hydro-air and several air handlers, and with BoilerMate indirect-fired water heater, as well as a swimming pool with attached hot tub. Is it possible to get and setup an outdoor wood boiler that can heat the system but keep the regular oil-fired boiler ready to go when the OWB was going to be left off? For example, if I was going to be traveling, or sick, or injured and unable to load the OWB, or just ran out of wood, whatever, would like to heave peace of mind to know that the system would switch back to oil. Also wondering if I can set up OWB in that or another scenario to also heat a swimming pool and attached hot tub instead of using an old broken pool heat pump. IF so, how do central OWBs do with pools compared to heat pump or propane pool heater? Thanks!