... 5 3.R410A refrigerant 4.EEV&PHE use 5.Flexible,floor,radiators,coil,water SAVE ENERGY, COMFORTABLE WARMTH IN YOUR ... offer the utmost in versatility in solving your cooling and heating needs. By utilizing environmentally friendly R-410a refrigerant and ... costs to gas fired boilers → Flexible, can be connected to underfloor heating,low temperature radiators or fan coils → Compresser-Rare earth permanent ...