Chris M and Ryan H arrived onsite, spoke with homeowner. We began the boiler safety and inspection checking all operations of Hydronic system. While running the boiler we noticed the Temperature pressure valve on the boiler was leaking and recommend replaced. Secondarily we discovered the expansion tank on the domestic water side is ruptured and full of water and is recommended to be replaced. Also the domestic water side is at 80psig ,maxing out the allowable press rating for the expansion tank, this is a indication of a failed pressure reducer or backflow preventer. We will advise a plumber inspect the system to determine the extent of the issue. Outside of the temperature pressure valve leaking the unit is operational at this time according to manufacture specifications. All components are operating like normal and all the safeties are working normally, the circulator is maintaining the delta t and all other operations are normal. Providing customer with option to repair pressure re