What we found for Nova Scotia ventilators
We re-read the Efficiency Nova Scotia assessment page on October 5, 2026. The $300 figure comes from the August 2026 rebate guide that page links to, which we last read in full on October 3.
HRV or ERV rebate
Paid through the Home Energy Assessment program after your final assessment. An earlier figure of $100 on other sites is out of date.
Air sealing
Listed in the same guide. Sealing leaks is often the reason a house needs a ventilator afterwards.
Home Energy Assessment
Every per-measure rebate, including the ventilator, counts toward one $5,000 maximum. The assessment costs $199, and the home must be at least six months old.
Moderate Income Rebate
For owners heating mainly with a non-electric fuel under the income limits. It also comes with a free assessment and needs approval before work.
HomeWarming
Lower-income homeowners get upgrades at no charge after a free assessment. What is installed is decided by the energy advisor.
We could not read the guide's fine print on ventilator models and installers when we checked, so ask your energy advisor for the exact rules before you buy one.
Why a ventilator comes up at all
Old Nova Scotia houses leak. That is wasteful, but it also means fresh air gets in by accident. When you add insulation and seal gaps, the house stops leaking and the accidental fresh air goes with it. Efficiency Nova Scotia says so on its own assessment page: upgrades such as insulation and air sealing may affect airflow in your home, and in some cases that can affect indoor radon levels.
A heat recovery ventilator, or HRV, brings fresh air in while a heat exchanger passes most of the warmth from the outgoing stale air to the incoming air. An energy recovery ventilator, or ERV, also handles moisture. Either one lets you tighten the house without giving up fresh air.
Test for radon first, whatever you do
Health Canada recommends that every homeowner test for radon, whether or not they have done any upgrades. Efficiency Nova Scotia points to Lung NS and PEI, which may offer a free test kit depending on your eligibility and program availability. A test costs far less than a ventilator, and the result tells you how urgently you need one. Test before the work and again after it.
How the $300 actually reaches you
You book an assessment with an Efficiency Nova Scotia delivery partner, and a registered energy advisor visits, checks insulation, air leakage and heating systems, and gives you a list of recommendations. You do the work within 12 months, then book a final assessment with the same partner. Only one final visit happens, so finish every upgrade you want counted first. The provincial rebates arrive about 90 days later.
Because everything is bundled, the ventilator rebate rarely makes sense alone. A $199 assessment fee to collect a $300 rebate leaves little. It works best when the same visit also covers insulation, air sealing or a heat pump.
Order of work in an old house
The 2021 Census shows why this matters. In the Halifax Regional Municipality, 45% of households live in homes built before 1981. In Cape Breton Regional Municipality it is 68%. Those are the houses most likely to have drafty walls and little insulation. Seal and insulate first, test radon, then decide with your advisor whether a ventilator belongs in the plan. If you do not touch the building envelope, you may not need one.
What does not qualify
The federal Canada Greener Homes Grant ended, with its last day for documents on December 31, 2025, and the loan cannot approve new applications, so there is no federal money on top. A ventilator is also not covered by an instant rebate at a store: the instant rebates cover thermostats, heat pump water heaters, dryers, pool pumps and clothesline kits.
How to claim the ventilator rebate
- Test your home for radon with a kit from Lung NS and PEI or a hardware store.
- If your income may qualify, apply to the Moderate Income Rebate or HomeWarming first and wait for approval.
- Book an assessment with an Efficiency Nova Scotia delivery partner ($199, free for moderate-income households).
- Ask the advisor whether your plan needs an HRV or ERV, and get the model eligibility rules in writing.
- Finish all upgrades within 12 months, then book the final assessment.
More for Nova Scotia homes
- Nova Scotia home rebates: every program in one place
- Nova Scotia insulation rebates: the rebate that often comes before a ventilator, with Halifax numbers
- Cape Breton insulation: the same program for older Cape Breton houses
- Nova Scotia appliance rebates: instant rebates at the till
Common questions
How much is the HRV rebate in Nova Scotia?
$300 through the Home Energy Assessment program, according to the August 2026 rebate guide. It counts toward the $5,000 maximum.
Can I get the HRV rebate without an assessment?
No. It is paid after a final assessment, so you need the initial assessment first.
Do I need an HRV if I only add a heat pump?
Not necessarily. The reason to ask is sealing and insulating the house. Ask your energy advisor.
Is there a free radon test?
Efficiency Nova Scotia points to Lung NS and PEI, where you may qualify for a free kit depending on availability and eligibility.
Is the old $100 HRV figure still right?
No. The current guide lists $300.
By Sam Menard. Sources, last read October 5, 2026: Efficiency Nova Scotia: Home Energy Assessment, Efficiency Nova Scotia: Home Energy Assessment Rebate Guide (Aug 2026), Health Canada: radon, Statistics Canada 2021 Census, table 98-10-0233-01.