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HRVs


Heat Recovery Ventilator

What is an HRV?

A heat-recovery ventilator (HRV) is important in a tight, well insulated, and energy efficient home as it provides a constant supply of fresh air without losing much of the heat. It uses the heat in the outgoing stale air to warm up the fresh air coming in.

How does an HRV work?

A typical unit features two fans–one to take out household air and the other to bring in fresh air. What makes an HRV unique is the heat-exchange core. The core transfers heat from the outgoing stream to the incoming stream in the same way that the radiator in your car transfers heat from the engine’s coolant to the outside air. It’s composed of a series of narrow alternating passages through which incoming and outgoing airstreams flow. As the streams move through, heat is transferred from the warm side of each passage to the cold, while the airstreams never mix

HRV

HRVs can recover up to 85 percent of the heat in the outgoing airstream, making these ventilators a lot easier on your budget than opening a few windows. And, an HRV contains filters that keep particulates such as pollen or dust from entering the house.

In a fully ducted HRV system you will see duct grilles in each of the bedrooms, all bathrooms, near the kitchen, and near the living room. These are the supply and exhaust ducts for the HRV. They take stale, moisture-laden air from the bathrooms and kitchen and supply fresh air to the bedrooms and living area. This is a great way to maintain good indoor air quality in the house, not only by supplying fresh air but by removing moisture that could promote mold growth as well as cooking and bathroom odors.

There are also Energy Recovery Ventilators (ERV’s) that can recover both heating and humidity which makes them even more efficient. CLICK HERE to learn more.

Energetechs can help you decide whether you need an HRV or an ERV for your project. We are authorized dealers for:

CONTACT US – Energetechs, Inc., – ph.