AboutLeo Luczak Expertise I am a Certified Building Official, and I am certified by the International Conference of of Building Officials as a plans examiner and as a commercial and residential building and plumbing inspector.
Experience I have been the Building Official for a small town in Alaska for the last 14 years. I also spent 20 years working in construction. I don't know that much about wells and septic systems.
Question QUESTION: I have a rinnai tankless water heater in a house that was built in 1970, it is hooked up with a 3/4" gas line. I beieve teh pressure comming into the house is at 2.5psi. The issues I am having is the unit will only heat the water to 90 degrees and but is set at 140.
ANSWER: If you mean that your water heater is 38 is 38 y/o then I suggest you replace it. If it is 10 y/o or so then you could try repairing it. Look for dust clogged combustion air passages.
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QUESTION: The problem I am having with my new Rinnai tankless water heater is it only heats to 90 degrees. Do you have any suggestions?
Answer If this is a brand new water heater I wouldn't do anything until you contact the place you bought the water heater from and informed them of the problem. If you do anything prior to that you might void out the warranty and you surely do not want to do that!
