Posted by Dave on March 07, 2001 at 07:42:58:
I have a phase III (Weil McClean) indirect hot water heater powered by my boiler. It is the 60 gallon model(TR60). The water coming out of our hot water taps is so hot (170 degrees) despite turning down the thermostat all the way on the phase III. Also, the boiler makes a terrible moaning sound when it is operating. I was told by the boiler rep that he thinks this is a low flow state and he thinks it is due to the fact that the piping between the phase III and the boiler is 3/4" and needs to be 1 1/4" per the phase III installation instructions. Would this decreased piping diameter also cause my domestic hot water to be so hot and the inability to decrease it's temperature? Thanks.
Dave