Pipe Insulation Heat Loss Calculator

Calculate heat loss from hot water pipes and determine insulation thickness requirements.

Nominal pipe diameter.
inches
Hot water temperature.
°F
Surrounding air temperature.
°F
Thickness of pipe insulation.
inches
Total pipe length.
feet

Results

Heat Loss-BTU/hr
Temperature Drop-°F/100ft
Annual Energy Cost-$/yr
References: Based on ASHRAE insulation heat transfer equations and energy cost analysis