I have a new heat only thermostat with the terminals G Rh and W. How do I tie that to an old furnace with the terminals Y W H R and Gh? Thanks You

Just use R and W terminals this will work for heat only. If you want to add the G terminal then the thermostat will turn on the blower manually.

Thanks so MUCH hvac1000. The garage is warmin up now! Thanks Again!

No problem glad you got it going.