Service and emergencies · calls accepted from 7 AM to 11 PM
R.B.Q. 5840-4443-01 · CMMTQ Member · 514 917-5525
Service and emergencies · calls accepted from 7 AM to 11 PM
R.B.Q. 5840-4443-01 · CMMTQ Member · 514 917-5525
A heat pump recycles the air in the room. It doesn’t bring in fresh air. That’s a distinction that matters in a well-insulated home.
Relative humidity recommended by Health Canada
The only wall-mounted unit in the range to offer a fresh air kit
Between two filter cleanings for a wall-mounted unit
The more airtight a building envelope is, the less the air renews itself. Humidity and CO₂ levels rise, leading to foggy windows and stuffy mornings. Health Canada recommends maintaining indoor relative humidity between 30 and 50%.
A heat pump dehumidifies slightly in cooling mode, but it doesn’t handle air renewal. These are two different functions.
The Clivia series is the only wall-mounted unit in the lineup to offer an optional fresh air kit. It introduces a portion of outdoor air into the room where it’s located.
It treats the room, not the building. It doesn’t replace an air exchanger. An HRV serves the entire home, recovers heat from the exhausted air, and operates independently of the heating system. If the need is for the whole house, that’s the direction to look in.
In an older home, air passes through leaks in the envelope. In a newer home, it doesn’t. Humidity and CO₂ levels rise, and the heat pump doesn’t change that.
A heat pump’s filter protects the device before it purifies the air: that’s its primary function. Finer filtration happens in the central system, if there is one, and is chosen based on the available airflow. A filter that’s too restrictive chokes the blower and does more harm than good.
No, except with the Clivia series fresh air kit, and then only in the room where the unit is installed. To renew the air throughout the entire home, you need an air exchanger.
Between 30 and 50% relative humidity, according to Health Canada. Above that, condensation appears on cold surfaces. Below that, the air becomes uncomfortably dry.
It’s a sign of excessive humidity combined with cold surfaces. We first look at the sources of humidity and air renewal before talking about equipment.
Contact us with the details of your setup: we’ll evaluate what’s right for the building and its ductwork.
We’ll come to you, take measurements, and explain what works best and why. Then, you decide.
