Hot Water Runs Out
I recently had my boiler and indirect water heater replaced.
The old boiler was a Weil-McLain WGO-6 with 212 MBH and the old indirect water heater was a 41 gallon Amtrol BoilerMate.
The new boiler is a Utica Trifire TRB5100 with 123 MBH and the new indirect water heater is a 45 gallon Superstor.
The other day we had 2 showers running at the same time and the hot water ran out after 8 minutes. We never ran out of hot water with the old equipment.
I reported this issue to the installer and they came to turn on DHW zone priority but that still hasn’t solved the problem. They are coming back to troubleshoot further and I was hoping to educate myself a bit before they do so I can better evaluate any potential solutions they recommend.
What are the first things you would check if you were diagnosing an issue like this?
Here is some more information about the system.
The system has one zone piped to an air handler located next to the boiler, one zone piped to the water heater also located next to the boiler, and one zone piped to an 18’ fin tube baseboard at the opposite end of the house that we don’t normally use.
The installer replaced all piping from the boiler to the air handler and water heater. There’s 1” piping for the water heater with a Taco 0015 circulator for the zone. The boiler high limit is set to 180 and the water heater aquastat is set to 130.
Here are some pictures of the equipment.
Thanks in advance!
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