thermostats

This is a new one on me. Hopefully someone else has some thoughts what to look for. In the recent freeze, we lost hot water. It froze so fast didn't even get a chance to do all the prevention steps. But when it thawed, there seem to be no busted or cracked pipes. Yet there is no hot water. We've...

I'd like to change the thermostat that controls an Amana heat pump because it's incredibly unintuitive. I often see the following warning on the back of many thermostat packages: For use on heat pumps without aux heat. Sometimes instead of the term 'aux heat' I see 'emergency heat' or 'backup...

Has anyone every heard of these or used one. I bought on about 2 months ago from HD when I set up my hot water floor heat. i use it to turn on a TACO F9 pump that circulates the hot water through the floor. It has a second sensor that I put in the floor with a maximum temp of 85 degrees so...