Vacuum hot water boiler brands are: A.O. Smith, Sundown Sunshine, Haier, Wanhe, Changhong.
1, A.O. Smith
It is one of the North American manufacturers of domestic and commercial hot water equipment, water purification and boilers, and has established a modern management system for the integration of research and development, production, sales and service.
2, Sundown Sunshine
is a manufacturing base specializing in the production of wall-hung boilers, air energy, and centralized water heating equipment.
3, Haier
It is a leading global provider of solutions for a better life. Its products include home appliances, home furnishings, smart home, biomedical, and industrial internet.
4, Wanhe
To "gas expert" as the brand positioning, the production of gas water heaters, gas wall-hung stoves, gas barbecue grills, gas air conditioning, gas heaters and other gas appliances, and matching electric water heaters.
5, Changhong
Its main color TV, air conditioning, water heaters, kitchen and bathroom, cell phones, small home appliances, new energy, Meiling refrigerator, Meiling washing machine and other products.
Reference: Baidu Encyclopedia - A.O. Smith