RT Journal Article T1 A comparison of heating terminal units: Fan-coil versus radiant floor, and the combination of both A1 Atienza-Márquez, Antonio A1 Fernández-Hernández, Francisco Ángel A1 Domínguez-Muñoz, Fernando A1 Carrillo-Andrés, Antonio A1 Cejudo-López, José Manuel K1 Calefacción por agua caliente AB Several control strategies are compared for a hydronic heating system that combines two different terminal units, radiant floor and fan-coil, in the same thermal zone. The performance of the combined system is evaluated in terms of energy consumption and comfort level. The production unit is an air-water heat pump. Four control strategies are defined and compared using a TRNSYS model: one strategy is applied when only the radiant floor operates, two strategies (simply and improved) are applied when only the fan-coil operates, and one strategy is applied when both terminal units operate simultaneously. Simulations are undertaken for three major cities with different heating requirements. In terms of comfort, the combined system achieves the higher scores, ensuring comfort conditions during most of the heating season. In terms of energy consumption, the worst option is the one that uses a fan-coil with fixed air velocity and fixed inlet water temperature. Nonetheless, there are not important differences between the analysed control options. The energy consumption of the system is mainly influenced by the part load performance of the heat pump, although the differences are small. PB Elsevier YR 2017 FD 2017 LK https://hdl.handle.net/10630/32970 UL https://hdl.handle.net/10630/32970 LA spa NO Antonio Atienza Márquez, José Manuel Cejudo López, Francisco Fernández Hernández, Fernando Domínguez Muñoz, Antonio Carrillo Andrés, A comparison of heating terminal units: Fan-coil versus radiant floor, and the combination of both, Energy and Buildings, Volume 138, 2017, Pages 621-629, ISSN 0378-7788, https://doi.org/10.1016/j.enbuild.2016.12.092. (https://www.sciencedirect.com/science/article/pii/S0378778816320849) DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 20 ene 2026