@variablepulserate The previous owner installed a gas central under-floor heating system, but did it on the cheap. it was designed to heat a building in excess of 2000 square feet in area, mine is just 950.
As a consequence, I was never able to dial back the heat output to suit my space and it was too expensive to run. i have disconnected the power that drove the blower fan & shut off the gas. In fact, the power outlet previously used for the fan now provides the ignition circuit to an externally-mounted instantaneous gas hot water-on-demand system.