Wall heater replacement involves upgrading or installing a new wall heater to provide warmth and comfort in your home. It’s crucial to choose a qualified contractor considering factors like license, experience, and local knowledge. Before installation, review building codes and safety regulations imposed by gas, electric companies, and local building departments. Gather essential tools and materials, including the wall heater unit, mounting brackets, gas line (if applicable), thermostat, and vent pipe. Prepare the installation site by ensuring proper electrical connections, gas line installation, and adequate ventilation. Mount the wall heater securely, connect the thermostat for temperature control, and install the vent pipe for safe exhaust. Finalize the installation with inspections and safety checks, adhering to manufacturer’s guidelines and local regulations to ensure proper functionality and safety.