Steam Pipe Heat Loss Calculator
Calculate heat loss from uninsulated steam pipes and potential energy and cost savings from adding pipe insulation.
Pipe Details
212°F (0 psig) to 400°F+ (high pressure)
8760 = continuous operation
$10-$25 typical
Insulation Options
Steam Pipe Heat Loss
Uninsulated steam pipes lose significant heat to the surrounding environment. Proper insulation can reduce heat loss by 90%+ and quickly pay for itself.
- • Bare pipe: 200-400 BTU/hr per linear foot
- • 1,000 BTU ≈ 1 lb of steam (at atmospheric)
- • Typical payback: 6-18 months
How to Use
- Enter pipe length, diameter, and steam temperature
- Set ambient temperature and annual operating hours
- Choose insulation type and thickness to compare
- Click Calculate to see heat loss analysis and savings
FAQ
How much can insulation save?
Properly installed insulation typically reduces heat loss by 85-95%. A 100-foot run of 4" bare pipe at 350°F can waste $3,000+ in steam annually—insulation usually pays for itself within 1-2 years.
Which insulation type should I use?
Fiberglass is most common and cost-effective for temperatures up to 450°F. Calcium silicate handles higher temps (up to 1200°F) and is more abuse-resistant. Mineral wool offers a good balance. Cellular glass is best for wet environments.
What thickness do I need?
Thickness depends on pipe size, temperature, and energy costs. For steam pipes, 1.5"-3" is typical. Higher temperatures and larger pipes benefit from thicker insulation. DOE recommends "economic thickness" analysis for optimal sizing.