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New Navian and Faucet Hot Water Temps
We just converted to gas. Our only use of gas is hot water for baseboard heat fins and faucet water. We had a navian combi boiler 240E installed. Since the install our hot water at the shower just does not last. With our oil heat boiler, I had the output temp set to 155 which kept the entire 2200 sq ft house satisfied. The two settings I see in the menu are heat at 171 and faucet at 120. I've had the plumber that installed it come back to check it out and I'm not confident he knows anything about setting these up. Now I know 155 is supposed to be scalding but the output temp and/or flow as it is does not support the house like we were told.
What are some things we can look at and/or do to help this problem? We have low flow shower heads.