Protect your home from the risks caused by sudden power outages a generator from Generac, the industry leader, installed by the experts at Deiter Bros. Heating Cooling Energy. In the event of a power failure, these reliable systems automatically start up, supplying electricity to your home until the local power utility restores service. Permanent installation of a standby generator is not a do-it-yourself project. Deiter Bros. Heating Cooling Energy has factory-trained technicians who meet Generac's high standards for service and customer satisfaction. Our service professionals meet warranty conditions, ensure safe and proper operation, and are always here to provide Emergency Assistance, 7 days a week. We dispatch technicians quickly, and our team is equipped to resolve most repairs right then and there.