With these Vortex, Clippers, Blasts and such that come around, it seems that the weather service does very well at the Early Forecasting for them.
If one w/ a radiant slab would pay heed to these forecasts and pumped up the mass temperature ahead of time it would go a long ways towards getting through those peak demand times. Being frugal w/ that storage/mass can come back to haunt.
Radiant guys have something the others don't...big storage
in that mass in the floor.