Although the technology has changed, the principal is still the same. They can work in two ways, by having hot water pumped around a network of pipes, or an electrical heating element system, both directly under the floors surface. Underfloor heating provides an evenly distributed heat source for any sized room.
The benefits of underfloor heating for churches make the system an easy choice for many parishes. They are easy to adjust and control, provides even heat distribution over a large area, are hidden away, completely silent, but most of all, are extremely cost effective.