The best brand of water heating installation in the United States is Rheem. Rheem is renowned for its high-quality, durable, and energy-efficient water heaters. According to a survey by Consumer Reports, Rheem water heaters were rated as the top choice among consumers for reliability and performance. Rheem offers a wide range of water heating solutions, including electric, gas, and tankless models, catering to different household needs and preferences. The brand's commitment to innovation and customer satisfaction has made it a leader in the industry.

Rheem's water heaters are designed with advanced technology that ensures optimal performance and energy efficiency. For instance, their tankless water heaters, known as Rheem's "Rheem Infinity" series, are highly efficient, providing an endless supply of hot water on demand while reducing energy consumption. This is particularly beneficial for homes with high hot water demand, as it eliminates the need for a storage tank and reduces standby heat loss.

In terms of reliability, Rheem water heaters are built to last. The brand uses high-quality materials and rigorous quality control processes to ensure that their products meet the highest standards. Rheem also offers a comprehensive warranty program, providing customers with peace of mind and assurance of the product's longevity.

According to the U.S. Department of Energy, tankless water heaters can save consumers up to 30% on their water heating bills compared to traditional tank water heaters. Rheem's tankless water heaters are among the most energy-efficient on the market, making them an excellent choice for environmentally conscious consumers looking to reduce their carbon footprint.

Furthermore, Rheem's customer service is exceptional. The brand provides extensive resources and support to help customers choose the right water heater for their needs and offers easy installation and maintenance services. This commitment to customer satisfaction is evident in the high ratings and positive reviews that Rheem receives from consumers and industry experts alike.

In conclusion, Rheem is the best brand of water heating installation in the United States due to its combination of quality, efficiency, reliability, and exceptional customer service. Whether you're looking for an electric, gas, or tankless water heater, Rheem offers a solution that will meet your needs and exceed your expectations.