Electrical costs for a mini-split heat pump?

Installing a mini-split heat pump typically requires a dedicated 240V circuit, which costs $400-$800 in New Brunswick depending on the distance from your panel and the amp requirements of your specific unit.

The electrical requirements for mini-splits vary significantly based on the system size and configuration. Most single-zone units need a dedicated 15-20 amp, 240V circuit, while larger multi-zone systems may require 30-40 amp circuits. Your electrician will need to install a disconnect switch near the outdoor unit (required by TSANB) and run appropriate wiring from your electrical panel.

Circuit Installation Costs in New Brunswick:

• Simple 20-amp circuit (panel nearby): $400-$600


• Longer runs or difficult access: $600-$800


• 30-40 amp circuit for larger systems: $700-$1,000


• Panel upgrade if no capacity available: Add $2,000-$3,500

The electrical work must be done by a TSANB-licensed electrician and requires an electrical permit. This is separate from any HVAC permits needed for the refrigerant lines. Many homeowners forget about the electrical requirements when budgeting for mini-splits, but it's essential for safe operation and to maintain your home insurance coverage.

Important considerations for New Brunswick installations: The outdoor unit needs proper electrical protection for our harsh winters, including ice storms. Your electrician should ensure the disconnect switch is accessible but protected from ice buildup. Some units also include electric backup heat strips that require additional electrical capacity.

If your electrical panel is already at capacity, you might need a panel upgrade before installing the mini-split circuit. Federal Pacific or older panels are particularly problematic and should be replaced before adding new high-draw appliances like heat pumps.

Safety note: Never attempt to install the electrical circuit yourself. Mini-split electrical work involves 240V power, which can be lethal, and improper installation can cause fires or damage the expensive heat pump equipment.

Need help finding a licensed electrician for your mini-split installation? New Brunswick Electrical can match you with local professionals who specialize in heat pump electrical work for a free estimate.