Air Exchanger VENMAR AVS® S SERIES 41702 Greater Montreal
Is it the right size for your home?
It delivers 106 cfm net, enough to ventilate 1,200 to 2,000 sq ft. Choose your home's living area.
It's the right size.
For a 900 to 1,500 sq ft home, about 63 cfm of air needs to be renewed continuously. This unit delivers 106 cfm net — enough for the house, with extra capacity to boost ventilation for the bathroom and kitchen.
Calculation: 0.35 air changes per hour over the living volume, with 9 ft ceilings. Our estimator sets the exact airflow room by room, following CSA F326.
What it does, in numbers
$39.04
Electricity per year
Less than a 60 W light bulb
Bulbs left on day and night. Same calculation for every line: wattage × 8,760 h × 11.142 ¢/kWh.
Meets the Québec Construction Code for Greater Montréal. The Code requires 54% at −25 °C below 6,000 degree-days (Montréal, Laval, Longueuil and both shores) and 60% above that. This unit is rated at 56% at 66 cfm.
Airflow and efficiency at 0 °C and −25 °C: HVI directory, Section III. Cost: 40 W over 8,760 h at Hydro-Québec's Rate D second tier (11.142 ¢/kWh).
What you should know about this one
Published, verifiable facts, not brochure claims.
ControlMain wall control required, not included
This model is operated from a main wall control sold separately. The switch on the unit instead selects the defrost mode: Standard (factory), Plus for colder areas, or Discretion, which keeps the same speed.
ReturnReturn-to-return furnace hookup allowed
The sheet allows a simplified return-to-return installation: fresh and stale air both tie into the furnace return, at least 3 ft apart and 10 ft from the furnace. The furnace blower must then run together with the ERV.
56%What it still recovers at −25 °C
The only efficiency figure that matters for a Québec winter, and the one the Code uses. An efficiency quoted without its temperature means nothing; this one is measured at a test airflow of 66 cfm.
DamperIt defrosts without depressurizing the house
In cold weather, a motorized damper closes the outdoor air intake and recirculates indoor air through the core to thaw it. The house doesn't go into negative pressure during the cycle: no cold air drawn in through leaks, and none of the imbalance manufacturers warn about when there's a fireplace or a combustion appliance.
ERVIt moves moisture too, not just heat
An ERV transfers some moisture between the two airstreams. Useful in a house that gets too dry in winter or takes on a lot of humidity in summer. The trade-off: it generally recovers less heat than a comparable HRV.
2004998Its HVI certification number
Listed in Section III of the Home Ventilating Institute's certified products directory. Anyone can check it, and it's the first condition for the Rénoclimat grant.
−11 cfmWhat the ducts cost it
Between a nearly unrestricted test bench (0.2 in) and a real duct system (0.4 in), it drops from 117 to 106 cfm. Most spec sheets show only the first number, precisely because it looks better.
40 WMeasured at the airflow it actually runs at
Its 67% at 0 °C is certified at 49 cfm, the continuous airflow of a typical home. At that setting it draws 40 W, or about 350 kWh a year.
5 yearsThe core warranty
The core does the work and is the most expensive part to replace. Motors and parts: 5 years. We register the warranty in your name at commissioning.
5 inWhat it needs on site
5 in ducts, side connection. It weighs 35 lb, and it needs enough clearance to slide the core out once a year.
Rénoclimat: $500 to install or replace an HRV or ERV
First condition met: HVI Section III certified, No. 2004998. Second: your EnerGuide rating must improve between the two evaluations. Québec warns that an air exchanger installed on its own can increase a home's energy use; that's why we balance it to the calculated airflow rather than running it at full speed.
What it needs on site
In a condo with no floor drain, or with little ceiling clearance, we usually look at a side-port model instead. Our estimator checks the location, the drain and the duct route before ordering.
Complete spec sheetData and cited sources
- Net airflow at 0.2 in. w.g.
- 117 cfm
- Net airflow at 0.4 in. w.g.
- 106 cfm
- SRE at 0 °C (49 cfm)
- 67%
- SRE at −25 °C (66 cfm)
- 56%
- ASE at 0 °C
- 75%
- Power draw
- 40 W
- Efficacy
- 1.1 cfm/W
- Type
- ERV
- Connection
- Side ports
- Duct collars
- 5 in
- Defrost cycle
- Recirculation (motorized damper)
- Filters
- 2 washable 20 ppi reticulated polyurethane foam filters; optional MERV 8 kit no. 21030
- Dimensions (L × D × H)
- 27.13 × 20 × 9 in
- Weight
- 35 lb
- Power supply
- 120 V
- HVI certification (Section III)
- 2004998
- Warranty — core
- 5 years
- Warranty — motors
- 5 years
- Warranty — parts
- 5 years
Net airflow, efficiency at 0 °C and −25 °C, and power draw: Home Ventilating Institute certified products directory, Section III (HVID 2004998). Annual consumption calculated at 40 W running continuously for 8,760 h, at Hydro-Québec's Rate D second tier (11.142 ¢/kWh), in effect since April 1, 2026.
The next model down and up
Talk to an HVAC technician before you choose
We calculate the airflow room by room, check the location and the drain, and give you an installed price. Balancing is measured at commissioning, not estimated.
VENMAR AVS® S SERIES™ ERV 114 CFM 65% SRE SIDE PORTS 41702: Unmatched Efficiency, Superior Air Quality
Welcome to AirGreen, a leading HVAC company based in Montreal, serving Greater Montreal, Laval, Longueuil, South Shore, and North Shore. We pride ourselves on offering HVAC sales and installation services of the highest caliber, ensuring that our customers benefit from the latest technologies in air quality improvement.
We're pleased to highlight one of our top offerings in the Air Exchanger section on our website: the VENMAR AVS® S SERIES™ ERV 114 CFM 65% SRE SIDE PORTS 41702, an exceptional product providing unparalleled energy efficiency and air quality in a compact, easy-to-install package.
The VENMAR AVS® S SERIES™ ERV 114 CFM 65% SRE SIDE PORTS 41702, also known as the S10 ERVplus, offers remarkable airflow and efficiency, making it an ideal choice for condominiums. With a delivery rate of up to 114 CFM and a compact design that fits easily into any living unit's ceiling, this unit is a cost-effective solution for superior air quality.
Key Features
- Exceptional Airflow: The S10 ERVplus delivers a maximum airflow rate of 114 CFM, ensuring a fresh and clean indoor atmosphere.
- Advanced Blower Design: The unit's innovative blower design dramatically reduces noise from air displacement, ensuring quiet operation.
- Easy, Fast Installation: The S10 ERVplus is designed with snap-fit brackets and a snap-in hooking system for quick and hassle-free installation. The system's robust 100% metal components withstand jobsite conditions, ensuring longevity and reliability.
- Optional MERV 8 Filtration: For those seeking an even higher level of air purity, the S10 ERVplus offers an optional MERV 8 filter kit.
- ColdShield™ Protection: This ERV unit is equipped with ColdShield™, a proprietary system that ensures the supplied air is tempered even under extremely cold conditions, safeguarding the equipment and maintaining comfortable indoor air temperature.
- Homeshield™ Protection: The S10 ERVplus also features the Homeshield™ protection system, which prevents ice build-up on the recovery module without creating negative indoor air pressure.
- No Drain Required: Another advantage of the S10 ERVplus is its design, which requires no drain, facilitating installation.
- Five-Year Warranty: Enjoy peace of mind with a five-year warranty on parts, with the original proof of purchase.
Exemplary Construction and Operation
The S10 ERVplus embodies superior construction and performance:
- Superior Construction: The housing and door are made of galvanized steel, ensuring durability. The one-piece molded insulation shell, made from expanded polystyrene (UL 94 HF-1 certified), guarantees superior insulation. The 5" diameter ports are made of galvanized steel, and the unit includes steel door hinges and latches for longevity.
- High-Reliability Motors: The S10 ERVplus features two high-reliability, external rotor PSC motors that are completely enclosed and thermally protected. These backward blowers can withstand high static pressure environments.
- ERV Core: At the heart of the S10 ERVplus lies the ERV core—a crossflow aluminum-polymerized paper core certified by UL723. This core utilizes a hydroscopic polymer to exchange water by direct vapor transfer using molecular transport, eliminating the need for condensation.
- Controls: The S10 ERVplus features an integrated control system for low or high-speed operation. A LED indicator shows the selected defrost mode and error codes for easy troubleshooting.
Quality Assurance and Certification
AirGreen is committed to delivering superior products, and the S10 ERVplus is no exception. This unit is HVI certified, certified to UL 1812 for ducted heat recovery ventilators, certified to CSA C22.2 No. 113 for fans and ventilators, and complies with CSA F326 requirements for the installation of Energy Recovery Ventilators.
At AirGreen, we believe that better air leads to a better life. With the VENMAR AVS® S SERIES™ ERV 114 CFM 65% SRE SIDE PORTS 41702, we offer a high-end ERV designed to meet your HVAC needs. Trust us for the best HVAC solutions—because we don't just promise quality, we deliver it.