hydronic or forced air heat

pappa

HI first time here I built a 32x40 residential pole shed with 10/12 pitch ,vinyl siding and a steel roof  a living area above [man cave]. so I will also need a hot water  heater  and air cond.

I  haven't done concrete yet would you suggest hydronic infloor  or forced air house furnace 96% efficient . I have ten foot  ceilings  if I do infloor how do I get air cond for the upper level. which will be the cheapest to run on nat gas. also by code I believe if I went forced air I would need two furnaces. I live in minnnesota

Rich_49

Hydronic

Have a room by room heat loss done . Use the water heater as your source for space heating also  and put a properly sized ductless split for ac . More details would be good like is the upper level open to below ?  What are the R values of the walls , roof , how many , what type , what size windows and doors . Can you draw a floor plan showing these things for us ?

pappa

windows

it will have a separate entrance for up stairs I small window 10"x24" on the main level and upstairs 4 - 18x 30' windows . no insulation right now 

Snowmelt

Rich

Is right, radiant floor, ductless ac .