The original warmup controller (aka Honeywell TH-132) stopped working. So replaced with this Minco one during renovation. It does what it says on the box. Two minor issues: one is the room/floor temperature is fluctuating a little bit (within ±1℃); another is that no led light to indicate if its on (before I order, I thought it does have a LED light, next to the buttons). Hope it will keep working for many years to come.
not tested