Understanding Your System: Hardware + Biological Process
Important Notice for Owners: A composting toilet is not a "plug-and-forget" appliance; it is an on-site biological processor. While WCTNZ® provides the highest-quality hardware, the efficacy of the composting process depends entirely on user management.
User Responsibility: Successful, odour-free operation requires the owner to maintain the correct balance of moisture, carbon (bulking agents), and airflow.
Performance: Our warranties cover the mechanical and structural integrity of the hardware (fans, seals, and shells). They do not cover system failure caused by "biological overload," incorrect "feeding," or failure to follow the provided maintenance protocols and professional advice.
Expert Support: We provide the tech and the knowledge, but User Knowledge = System Success. By purchasing this system, you acknowledge that you are the operator of an on-site waste management facility and are responsible for its ongoing biological health.
Technical Classification
Fixture Type: This unit is legally classified as a Sanitary Fixture (Waterless Soil Fixture) under NZBC Clause G13 and AS/NZS 1546.2:2008. As a fixed component of a building's sanitation infrastructure, its performance is dependent on correct installation and ongoing biological management.
Electrical Safety: Integrated 230V-240V AC components are classified as Low Risk articles under the New Zealand Electricity (Safety) Regulations 2010.
Certification: This system complies with AS/NZS 3820 (Essential safety requirements) via recognized international standards (CE/UL).
Installation: As a fixed sanitary fixture, installation should be overseen by a qualified professional to ensure compliance with local building codes.

Full technical definitions and warranty terms can be found [here].

Need Help with Compliance or Technical Specifications?
WCTNZ® Technical Support: We understand that navigating the Building Code, RV Self-Containment regulations, or Commercial health and safety requirements can be complex. We are here to ensure your project is compliant and your system is set up for long-term success.
How we can assist your project:
  • Consent Documentation: Providing technical data sheets and compliance certificates for your Council Building Consent.
  • Custom Specification: Tailoring biological management plans for high-use commercial or public facilities.
  • Mobile Certification: Assisting with the technical requirements for RV and Tiny House Self-Containment (NZS 5465:2001).
Next Step: Would you like our technical team to provide a Documentation Pack or professional advice tailored to your specific installation? Contact us here.