redbirds09 posted an answer for this Bosch PowerStar AE125 AE125 Whole House Electric Tankless Water Heater...:
"If on a well, you can install a regulating valve in the line to help with this problem...."
redbirds09 posted an answer for this Bosch PowerStar AE125 AE125 Whole House Electric Tankless Water Heater...:
"I have had a PowerStar A125 for about a year and now the water is hot in the beginning and..."