The Viessmann PlusBus Spacing Frame for Combi Boilers is a stand‑off mounting frame designed to create 90mm rear clearance behind Vitodens 100‑W and Vitodens 200‑W PlusBus combi boilers. This allows all pipework—heating, gas, cold water, and DHW—to run neatly behind the appliance, hiding all connections for a clean, modern installation. It is supplied complete with system‑matched valves, ensuring a fast, consistent, and compliant installation.

This spacing frame is ideal for installers who require rear pipe routing without compromising boiler access or serviceability.

• Suitable for Vitodens 100 & 200 PlusBus combi boilers.

• Provides 90mm wall clearance, allowing pipework to run behind the boiler and remain concealed.

• Includes valves and fittings required for combi boiler connections.

• Comes with a gas shut‑off valve (R 3/4") with a thermally activated safety shut‑off.

• Includes heating flow and return connections (R 3/4") and cold water/DHW connections (R 1/2").

• Designed for rear pipework routing, helping hide pipework and deliver a clean, professional installation.

• Supplied with fixings and mounting hardware for straightforward fitting.

• Gas shut‑off valve: R 3/4" (male thread)

• Heating flow/return: R 3/4" (male thread)

• Cold water/DHW: R 1/2" (male thread)

• PlusBus spacing frame (rear pipework version, 90mm clearance)

• Gas shut‑off valve with integral thermal safety mechanism

• Heating flow & return valves

• Cold water and DHW valves

• Fixings and mounting hardware

• Concealed rear‑pipe installations for Vitodens 100 & 200 combi boilers

• Domestic and commercial installations demanding a clean, minimalist boiler appearance

• Installations where front‑visible pipework is not acceptable

• Consistent multi‑property installation standards for housing associations or developers