I recently bought a house built in 1983. The water heater is located in the garage on the south side of the house and is set at 150 degrees. The master bathroom and guest bathroom are both on the north side of the house. I noticed when I first moved in that the water in the master bathroom did not get hot. I thought this was an anti scald feature. However, since the weather has gotten cold the water from the shower and two sinks are not warm enough. This bathroom had been recently remodeled with all new Kohler sinks and a one handle shower fixture. Why is the enough hot water getting thru when these bathrooms are next to each other?