HRV & ERV Ventilation
Installation in Southern NH

Both systems bring in outdoor air while exhausting stale indoor air and recovering heat between the two air streams. An HRV transfers heat. An ERV transfers heat and some moisture, which can reduce winter drying and limit how much outdoor moisture enters with summer ventilation. An ERV does not dehumidify the home, and the better choice depends on the home's construction, occupancy, HVAC system, and ventilation design.

Newer or recently air-sealed homes may benefit from mechanical ventilation when natural leakage no longer provides enough air exchange. Stuffy rooms, recurring window condensation, and lingering cooking or bathroom odors are reasons to evaluate the home. We determine whether an HRV, ERV, or another ventilation approach fits the house.

We install Lifebreath and other HRV and ERV systems and help select equipment for the home's ventilation load and layout. Recovery performance varies by model, so the proposal identifies the rating of the equipment being quoted.

The unit is usually placed in a basement, mechanical room, or attic. We plan the outdoor intake and exhaust terminations, route the required ducts, connect the controls, and balance the airflow at commissioning. The exact duct layout depends on the home and selected system.