Open question. Dear & I are designing our final house. We have lived in 6 houses now three with forced air one with electric baseboard and two with hydronic baseboard. We know we want hydronic for level temp and better humidity. Builder is pushing radiant in-floor - PEX in gyp-crete. I've done some reading but would like your thoughts. It's the house at issue not the garage, barn, aprons, shop areas with concrete foors, those will be PEX radiant plus forced air supplement. The house issues are the relative efficiecy of floor heat transfer through carpet/wood/vinyl/tile vs baseboard radiators. Cost is part of the equation. Boiler is to be biomass with LP start and backup; no vendor decided. Other HVAC is forced air A/C w LP burner sections, to satisfy code these are nominated to be the primary heat but will in usage be supplement for shoulder season and boost when desired. Zoning in house will be each bed and full bath separate zones, living/dining separate, one zone for remaining spaces (kitchen, halls, lavs, laundry, and family room). Currently we do not actively heat a full basement which is insulated but used as additional living space, sufficient heat is supplied by the 3 circulator mains (there is a 4th main to supply 4 radiators in the basement) and we are considering the same for the new build, I haven't discussed this specifically with the builder yet so not sure about code issues.