A heating method that relies on infrared radiation to warm surfaces, objects, and occupants directly. In HVAC, this is typically achieved through hydronic tubes embedded in concrete floors or high-intensity infrared panels mounted in ceilings. Because it does not rely on blowing hot air, it eliminates drafts and stratification, making it highly efficient for high-bay warehouses and residential floors.
Heard on the job
The shop feels comfortable at 60 degrees because the radiant heat in the slab keeps our feet warm.
Also heard as
- radiant heating
Do not mix it up with
- Sensible heat: Sensible heat is the measurable thermal energy in the air itself, whereas radiant heat travels through the air to warm objects directly.