Is it more economical to leave underfloor heating on all the time?
Correspondingly, should I leave underfloor heating on all the time?
It is advised that in the depths of winter, an underfloor heating system should be kept on at all times. Although it should be at different temperatures depending on usage and activity in the house. This is because underfloor heating can take two to three hours to warm up, so it is best to not completely turn it off.
In this manner, what's the most efficient way to run underfloor heating?
Underfloor heating runs at a lower temperature than radiators, so your builder's suggestion to run the underfloor heating all the time, controlled by the thermostat makes sense. You use your thermostat to set the temperature you want. It is an efficient way of running the system.
In general, electric systems are cheaper to install, and cause less disruption to existing floor structure. They also allow the room to reach the required temperature faster than the wet varieties because they are direct heat sources.