J johnnguyen20032000 New member Sep 27, 2009 #1 I HAVE A TWO ZONE HEAT VALVE FOR THE GAS BOILER TO CONNECT TO THE THEMOSTAT TO RUN THE HEAT, PLEASE SHOW ME HOW TO TEST THE VALVE, IF IT IS STILL GOOD OR BAD CONDITION. THANK YOU VERY MUCH.
I HAVE A TWO ZONE HEAT VALVE FOR THE GAS BOILER TO CONNECT TO THE THEMOSTAT TO RUN THE HEAT, PLEASE SHOW ME HOW TO TEST THE VALVE, IF IT IS STILL GOOD OR BAD CONDITION. THANK YOU VERY MUCH.