Both intermittent and continuous heating are widely used for radiant floor
heating systems in Korea, Intermittent heating circulates hot water accordi
ng to a predefined schedule while the continuous heating controls water fla
w using thermostat control units. The standard version of SERI-RES has been
modified for the numerical simulation of the problem. Results show relativ
ely large temperature swings in the case of intermittent heating with solar
availability, although it costs less to implement due to its simplicity in
design. On the other hand, the case of continuous heating would avoid such
undesirable temperature fluctuations. These results are also verified by e
xperimental evaluations. Copyright (C) 1999 John Wiley & Sons, Ltd.