Serial Number Locator: Vitodens 100-W, B1HA / B1KA
Wall-mounted gas-fired condensing boiler with stainless steel cylinder burner and Inox-Radial heat exchanger surface.
Location #1 of serial number
The 16-digit serial number is located on the inner-left side of the boiler (front white cover removed).
Location #2 of serial number
The 16-digit serial number may also be located underneath the boiler along the bottom panel.