Hello:

Have a very old Honeywell thermostat for our forced gas hot water heating
system which I need to
probably replace. Heating only.

Questions.

a. Do they still come typically with that Heat-Anticipator function ?

If so, how do I adjust it correctly ?

I seem to remember that you have to measure the current draw with a
milli-ohmmeter, which shouldn't present any problem for me if required.

If someone could please tell me the exact steps to go thru to set it
correctly, would be most appreciative.

b. Are the thermostats on the market now that do-Not use the mercury switch
type "just" as good, or,... ?

Any brands or types to avoid, etc.
Honeywell units still considered the best ?

Thanks,
Bob