Free Hot Water Radiant Floor and Heat Loss Calculator

Radiant Floor and Heat Loss Calculator

Outside Design Temperature			Average winter temperature
Soil Temperature
Heated Building Envelope	Value	Length	Width	Height	BTU hour	BTU sq. ft.
Perimeter Walls - R=19 insulation
Doors & Windows U=.5
Ceiling Area - R=38 insulation
Desired Inside Temperature
Basement Envelope	Value	Length	Width	Height	BTU hour	BTU sq. ft.
Basement Walls - R=4 insulation
Basement Floor - R=5 insulation
Windows Basement U=1.2
Desired Basement Temperature
Garage Envelope	Value	Length	Width	Height	BTU hour	BTU sq. ft.
Garage Walls - R=19 Insulation
Garage Ceiling - R=38 insulation
Garage Floor - R=5
Garage Doors & Windows R=.5
Desired Garage Temperature
BTU Requirements
Daily BTU's Required

Solar Collector BTU (if known)
Number of Solar Thermal Collectors Required