HRV, ERV & Air Exchanger Installation in Halifax

Yes — around here they're the same thing. "Air exchanger" is what most Nova Scotia homeowners call it; HRV (heat recovery ventilator) is the trade name. An ERV is the close cousin that also moves moisture, not just heat. If someone told you that you need an air exchanger, they mean an HRV or an ERV.

It depends on your home, not a rule of thumb. An HRV recovers heat and helps dump excess winter moisture, so it suits homes that fog up windows or feel damp — often older or higher-occupancy ones. An ERV also moves some humidity, which keeps a tight, well-sealed home from getting too dry in winter and eases summer stickiness — which is why tightly built modern homes increasingly choose one. We size the choice to how your house actually behaves, not a brochure.

Check the cheap things first. Plenty of units that seem dead are a blocked filter, a dirty core, an iced-up intake, a seized damper motor, or controls that were never set up properly — service work, not a new machine. Replacement makes sense when the motor or core has actually failed on a unit that's already past its lifespan. We'll tell you which one you're looking at before quoting anything.

Commonly quoted at 10–15 years, and a good unit that's had its filters and core cleaned regularly can run 20. Ones that were never serviced tend to go early — usually the motor or the damper first. If yours is past 15 years and struggling, replacement is usually the honest answer.

As a planning figure, a straight swap where the existing ducting is sound is typically the cheapest path, while a first-time installation that needs new dedicated ducting runs considerably more — Canadian figures for a fully installed system generally land somewhere in the $2,500–$5,000 range, higher for large or complex homes. That's an estimate, not a quote: the unit, the state of the ducting and how much of it has to be rebuilt decide the real number. We price it after seeing what's there.

A properly ducted HRV/ERV pulls stale, damp air from bathrooms and the kitchen area and delivers fresh air to living spaces and bedrooms — balanced so it works, not just installed. A lot of the underperforming units we open up were ducted to the wrong rooms or never balanced at all.