Water HeaterManufacturer & OEM Supplier

OTOL is a premier OEM/ODM manufacturer of water heater for global hotels, distributors, and large-scale projects. Every item is engineered to international standards — ISO 9001, cUPC, and WaterMark certified — with low minimum order quantities, custom branding (private label), and reliable 30–45 day lead times. Browse the water heater range below, or request a quote for project pricing and certification documents.