Key takeaways
- Ducted heat pumps are one of the most efficient ways to heat and cool an entire home, but they still rely on good airflow, correct sizing and regular servicing to perform at their best. If your electricity...
- Dirty Return-Air Filter
- Heating Too Many Rooms
Ducted heat pumps are one of the most efficient ways to heat and cool an entire home, but they still rely on good airflow, correct sizing and regular servicing to perform at their best. If your electricity bill has climbed unexpectedly, your system may be working harder than it should.
Dirty Return-Air Filter
A blocked return-air filter is one of the most common causes of reduced efficiency.
Restricted airflow forces the system to run for longer while delivering less heating or cooling.
Heating Too Many Rooms
Heating unused rooms naturally increases electricity consumption.
If your system includes zoning, make sure you're only conditioning the areas that actually need heating or cooling.
Poor Insulation
Even an efficient ducted system struggles if large amounts of heat are escaping through ceilings, walls, windows or draughts.
Improving insulation often reduces running costs as well as improving comfort.
System Needs Servicing
Dust buildup, worn components or declining refrigeration performance can all reduce efficiency over time.
Annual servicing helps keep the system operating as efficiently as possible.
When Should You Contact Holmes Services?
Arrange a service if:
- Electricity bills have increased noticeably.
- The system runs almost constantly.
- Heating or cooling performance has declined.
- The return-air filter is clean but performance hasn't improved.
- Annual servicing is overdue.
Frequently asked questions
Does a dirty filter increase electricity use?
Yes. Reduced airflow forces the system to work harder.
Will zoning reduce running costs?
Heating only occupied areas can improve efficiency in many homes.
How often should a ducted system be serviced?
Professional servicing every 12 months is recommended for most homes.
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Holmes Services helps Auckland homeowners and businesses with heat pumps, ventilation, refrigeration and indoor comfort issues.