Request a bid for electric radiant heat Electric cable radiant heat systems are ideal for small areas and small renovations where floor height cannot be raised.  The cables can be embedded in a mortar bed with tile or stone laid directly over them. Request a bid for hydronic radiant heat Hydronic radiant heat systems are beneficial in large projects or when flooring other than tile and stone will be used.  It can also be used when an existing radiator or baseboard system is in place.  There are more options with hydronic systems than with electric systems and they are more effective as primary heating systems for larger areas.