Rental properties
Electrical preparation for heat pumps in NZ rentals
Electrical preparation starts after the landlord has identified the heating capacity required for the rental's main living room and selected a candidate heat pump. Keep two records: the Healthy Homes capacity result for the room, and the electrician's assessment of how the selected unit will be supplied, protected and isolated. One cannot replace the other.
Confirm the Healthy Homes heating requirement
Tenancy Services says a rental must have one or more fixed heaters that directly heat the main living room, meet the required heating capacity and satisfy the rules for acceptable heaters. An electric heater or heat pump used for the standard must have a thermostat. Landlords can use the official heating assessment tool, the regulatory formula or an eligible professional pathway where applicable.
If an existing heat pump is being replaced because of wear and tear, Tenancy Services says the replacement must be qualifying heating that meets the required capacity. Keep the assessment result and the assumptions used for the room. Do not choose a unit from the old nameplate alone without confirming the current requirement.
Give the electrician the selected model
The heating installer or supplier should provide exact indoor and outdoor model numbers and the proposed locations. The electrician uses the manufacturer's electrical data, not only the heating output, to assess input, wiring, protection and isolation. A provisional electrical allowance should be reviewed if the model or position changes.
Send photographs of the intended indoor and outdoor locations, the current isolator if one exists, the cable route where visible and the switchboard with all covers in place. Include the property address and whether the job is a new installation or a replacement. Photographs support planning but do not establish spare circuit capacity.
Assess the circuit, switchboard and isolator
EECA says an existing circuit may be used where it has sufficient spare capacity, or the heat pump may need a separate circuit back to the switchboard. The assessment should cover connected loads, cable and connection condition, relevant test results, protective devices, switchboard condition and available space. There is no single circuit answer for every model and property.
The outdoor unit also needs suitable means of isolation. EECA's guide calls for an accessible, lockable isolating switch attached to the house rather than the outdoor unit. The final design should follow the manufacturer's information, the installation and the applicable electrical requirements.
Use licensed workers and arrange tenant access
Tenancy Services states that landlords must not carry out fixed-wiring work at a property they rent out, including fitting power points. Use licensed practitioners for the parts of the job that require them. The heat pump installer and electrical worker should agree who supplies equipment, runs the circuit, installs the isolator, connects the unit, tests the work and provides each record.
For an occupied rental, the property manager should arrange lawful access before contractors attend. Provide the authorised contact, agreed time, parking or gate information, pets and any restricted area. Tenancy Services publishes the current notice and entry requirements, with different treatment for emergencies.
Keep heating and electrical records together
The property file should show the heating-capacity basis, selected model, installation date, work order, owner approval, invoices, operating instructions and warranty information. Add the electrician's work description and any applicable Certificate of Compliance, Electrical Safety Certificate or Record of Inspection. Not every job produces the same electrical document, so ask what applies to the completed scope.
UBL Electrical can assess and complete the approved electrical portion of Auckland rental heat pump work within its licensed scope. Send the model details, property information and safe photographs for a free quote, or call 021 0284 3210 to coordinate the electrical work with the wider installation.
- Official heating-capacity result for the main living room
- Exact heat pump model and proposed positions
- Circuit, switchboard, protection and isolation assessment
- Licensed responsibilities and tenant access plan
- Heating records and applicable electrical certificates