I have a 4 zone recirulating hot water heat system run off Propane. One zone running the hot water unit.

A few years ago I replaced all I replaced the three Thermostats with programable ones. However after a couple years they don't work the way they should or trying to reprogram them sometimes dosen't work. Maybe its maybe , maybe not. Any way my wife wants me to install just the round type standard Honeywell themmostats.

The problem is all of the stores, Home Depot, Sears, etc only have ones that say if you have a three or four wire system then this may not be the one for your system.

Mine is a four wire type comming out of the wall along with the white wire.

Does Honeywell make one for this type and where can I buy it and what is the model no?

Thank you for any help you can give me.