The answer to 'water heater installation frozen' is that a frozen water heater is a common problem, often caused by a power outage or extremely cold temperatures. Symptoms include no hot water, strange noises, and the tank feeling cold to the touch. Solutions may include turning up the thermostat, wrapping the tank in insulation, or using a space heater to thaw the unit.
In many cases, a frozen water heater can be fixed with some basic DIY troubleshooting and maintenance. However, if the problem persists or you're not comfortable working on the unit, it's best to call a professional plumber. They have the expertise to properly diagnose and repair a frozen water heater to get your hot water back up and running.