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VHR70 Fresh Air Appliance

Top duct connection HRV, 57 cfm

Item Number: 463264

• Airflow up to 57 cfm @ 0.4" PS serves 1 to 3 bedroom homes
• Top port design fits in tight spaces
• Three speed ventilation control
• Compatible with Fantech's low-voltage controls

As Fantech's most compact, full-featured HRV, the VHR 70 unit brings a continuous supply of fresh air into a home while exhausting an equal amount of contaminated air. During winter, fresh incoming air is tempered by the heat that is transferred from the outgoing air so you save on energy costs, while during summer, the incoming air is pre-cooled if the house is equipped with an air cooling system. The VHR 70 is equipped with automatic defrost mechanisms so you can use your HRV all year long.

Technical parameters

Voltage (nominal) 120 V
Frequency 60 Hz
Phase(s) 1~
Input power 48 W
Input current 0.4 A
Static pressure 0.4 in.wg
Certificate CSA, HVI
Exchanger type Heat recovery (aluminium)
Dimensions and weights
Weight 30.9 lb
Used for
Installation placement Vertical
Images Wiring - VHR70 Fresh Air Appliance - Fantech
Supply temperature Net airflow Consumed power Sensible recovery efficiency Apparent sensible effectiveness Latente recovery/ Moisture transfer

°F (°C)

cfm (L/s)






32 (0)

42 (20)





32 (0)

64 (30)





-13 (-25)

46 (22)





Images Dimensions - VHR70 Fresh Air Appliance - Fantech
Model​ A B C D


20 1/2 (564)

10 1/4 (261)

17 1/8 (435)

15 5/8 (387)

Dimensional information is in inches (mm).


Two (2) factory-balanced fans with backward curved blades. Motors come with permanently lubricated, sealed ball-bearings to guarantee long life and maintenance-free operation.

Heat Recovery Core

Aluminum heat recovery core covered by a limited lifetime warranty. Core dimensions are 8.5” x 8.5” (216 x 216 mm) with a 8” (203 mm) depth. Our heat exchangers are designed and manufactured to withstand extreme temperature variations.


A preset defrost sequence is activated at an outdoor air temperature of 23°F (-5°C) and lower. During the defrost sequence, the supply blower shuts down & the exhaust blower switches into high speed to maximize the effectiveness of the defrost strategy. The unit then returns to normal operation, and continues cycle.


Core, filters, fans, drain pan and electrical panel can be accessed easily from the access panel. Core conveniently slides out with only 10” (250 mm) clearance.

Duct Connections

4" (100mm) steel duct connections with rubber gasket for easy sealing.


24 gauge galvanized pre-painted steel corrosion resistant


Cabinet is fully insulated with 1” (25 mm) high density expanded polystyrene.


Two (2) washable electrostatic panel type air filters 8.5” (216mm) x 8” 203mm) x 0.125” (3mm).


External three (3) position (Low/Stand By/Medium) rocker switch that will offer continuous ventilation. Fantech offers a variety of external controls. (see optional controls)


1/2” (13mm) OD (outside diameter) drain spout provided, entire bottom of unit covered by drain pan.


Limited lifetime on aluminum core, 7 year on motors, and 5 year on parts.

Requirements and standards
• Complies with the UL 1812 requirements regulating the construction and installation of Heat Recovery Ventilators
• Complies with the CSA C22.2 no. 113 Standard applicable to ventilators
• Complies with the CSA F326 requirements regulating the installation of Heat Recovery Ventilators
• Technical data was obtained from published results of test relating to CSA C439 Standards
• HVI certified
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