For over 100 years, we've focused on what matters most: your comfort at home.
Since Dr. Theodor Stiebel invented the revolutionary immersion water heater in 1924, we've remained family-owned and committed to one principle: technology should enhance your wellbeing, not complicate it. Our products work quietly in the background—water heaters, heat pumps, heating systems—but their impact is anything but hidden. You feel it in endless hot water. In rooms that stay comfortably warm. In energy bills that drop. In systems that deliver reliable performance season after season.
We design for real homes and real lives. Each innovation combines German engineering precision with practical benefits that make your daily routine better. No shortcuts. No compromises. Just superior solutions that professionals recommend and homeowners trust.