The Warmup VLo Nexxa-12 Castellated System is a low-profile, screeded hydronic heating system developed for use with insulated subfloors. The VLo Nexxa-12 Castellated System is a low-profile castellated water underfloor heating system and is a great choice for refurbishment projects with insulated floors. The system incorporates the 12mm PERT pipe with an innovative castellated membrane which facilitates an optimal heating layout and allows a clear and repeatable installation method for larger p
