Balanced Heat Recovery Ventilation

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Heat Recovery Ventilation systems are also referred to as Energy Recovery Systems and they aim to ventilate your home without undue loss of heat in winter or heat gain in summer.

They are also the best system for airtight homes. Most ventilation systems in New Zealand are positive pressure systems where the fresh air displaces the stale moisture laden air through gaps around windows, doors, light fittings etc.

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There are three main reasons why Balanced or Heat Recovery Ventilation (HRV) systems are of increasing relevance for New Zealand homes:

  1. Ventilation for airtight homes: New home construction methods have less gaps which is more thermally efficient. Unfortunately without gaps there is nowhere for damp, stale air to escape through either naturally or via conventional positive-pressure ventilation systems. The balanced approach to a Heat Recovery Ventilation is that air is simultaneously removed mechanically from the home to balance the air coming in.
  2. Energy efficiency of Balanced Ventilation systems: In winter we spend a high proportion of our power bills on staying warm through heat pumps and heaters. Traditional ventilation systems push out damp, warm air from the home and replace it with fresh but cold air which then has to be heated again. A heat recovery system uses the heat of the outgoing air to temper the fresh air coming in - it reuses the energy you've already paid for to warm the incoming cool air. While some positive-pressure systems fit a heater to warm the incoming air they are not as efficient as an energy recovery system.
  3. Improved comfort: Positive-pressure ventilation systems can create a noticeable draught in winter from the cold incoming air. With a balanced heat recovery system you won't notice the air temperature difference and can enjoy healthier air in comfort.

NOTE: Installed pricing offer of $6,499 is for the Mitsubishi Lossnay VL220, 2 outlets, based on standard installation.

Need home ventilation?

Our advice and quotes on home ventilation are free with no-obligation. Positive pressure, Balanced Pressure or Heat Recovery - we can help.

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Call us on 0800 888 766

Finance & Funding

We have financial support available to make installing ventilation systems in your home more affordable.

  • One Smart Energy 24 month instalment plan
  • Mortgage Top-Ups for energy efficiency products
  • Q Card Finance
  • Squirrel Money

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Need home ventilation?

Our advice and quotes on home ventilation are free with no-obligation. Positive pressure, Balanced Pressure or Heat Recovery - we can help.


Hate filling in forms? Call us direct 0800 888 766

We answer 24 hours, 7 days a week so call us anytime.

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