A reheat furnace runs around the clock heating steel to rolling temperature, and every one of its major systems, burners, skid pipes, refractory, and recuperators, is working against constant thermal stress. A skid pipe that fails or a burner that drifts out of tune doesn't just cost efficiency, it can force an unplanned stop on the whole rolling line. This checklist covers what's worth checking on every daily round. Sign up to turn this checklist into a recurring digital inspection for your furnace.
5 Systems
Core furnace systems worth checking on every inspection round
1200°C+
Typical furnace zone temperature these components run against continuously
Daily
Minimum frequency recommended for a full walk-around inspection
Zero Skips
Tolerance for missed skid pipe checks, since leaks escalate fast under load
Why Reheat Furnaces Need Constant Watching
A reheat furnace rarely fails all at once. Burners drift out of tune gradually, skid pipes scale up slowly, and refractory thins one heat cycle at a time. A technician walking the same route daily is what catches these changes while they're still a quick fix instead of a rolling line stoppage.
Burner & Combustion Checks
Flame Pattern & Colour
Check each burner's flame shape and colour for signs of poor air-fuel ratio or a clogged nozzle
Fuel & Air Pressure
Confirm supply pressure at each zone matches setpoint, since drift here directly affects heating uniformity
Ignition & Flame Safeguard
Verify pilot ignition and flame detection are responding correctly, since this is a core safety system
Never Miss A Furnace Inspection Again
Oxmaint turns this checklist into a recurring digital route, capturing readings against each system so drift over time is easy to spot. Sign up for a free trial to build your furnace inspection route, or book a demo to see it in action.
Skid Pipe & Water System Checks
Skid Pipe Leak Check
Inspect for steam or water leaks at welds and fittings, which can quickly damage nearby refractory
Cooling Water Flow & Temperature
Confirm flow rate and return temperature at each skid to catch scaling before it restricts cooling
Skid Pipe Insulation Condition
Check refractory insulation on skid pipes for burn-through, since exposed pipe scales up much faster
Refractory, Recuperator & Door Seal Checks
Refractory Wall & Roof Condition
Look for spalling, cracking, or hot spots on the outer shell that point to lining wear inside
Recuperator Performance
Check combustion air preheat temperature against baseline to catch fouling or a developing leak early
Door & Charge End Seals
Inspect charge and discharge door seals for gaps that let heat escape and cold air in
What An Abnormal Reading Might Be Telling You
| What You Notice |
Possible Cause |
| Yellow, lazy burner flame |
Insufficient combustion air or a partially clogged fuel nozzle |
| Rising skid pipe return temperature |
Scale buildup inside the pipe restricting cooling water flow |
| Falling recuperator preheat temperature |
Fouling on the heat exchange surface or an air leak in the ductwork |
| Visible flame at a door seal |
Worn seal packing or a door that's no longer sitting flush against the frame |
Where A CMMS Fits Into Furnace Inspections
Oxmaint turns this checklist into a recurring digital route, capturing burner, skid pipe, and recuperator readings against the furnace asset so a slow drift shows up long before it forces a rolling line stoppage.
Frequently Asked Questions
Q
How often should a reheat furnace be inspected?
A daily walk-around covering burners, skid pipes, and seals is standard practice, with a closer refractory and recuperator check on a weekly basis.
Q
Why are skid pipe leaks considered urgent?
A leaking skid pipe can quickly damage the surrounding refractory and, in serious cases, lead to pipe failure under the furnace's continuous thermal load.
Q
Can a CMMS turn this checklist into a recurring digital inspection?
Yes, a CMMS can schedule the checklist as a recurring route, prompt the technician for each reading, and build a trend history against the furnace asset automatically.
Turn This Checklist Into A Route Your Team Follows Every Day
Oxmaint schedules this reheat furnace inspection as a recurring digital route, capturing readings and trends automatically. Sign up for a free trial to build your furnace inspection route, or book a demo to see it in action.
