Apr 17, 2025 · When sizing an ERV or HRV, should you undersize, size at design, or oversize for the ventilation rate? The answer might surprise you.

Mar 26, 2017 · Is anyone able to rank or provide insights into the following units? Or add one I’m missing? 1. Zehnder ComfoAir 350 2. UltimateAir 200DX 3. Fantech 4. RenewAire EV200 5. …

Dec 27, 2020 · Combining the ducts only works if the two units are in a parallel. With two distinct ERV serving different parts of the house, you want dedicated ducting for each.

Apr 7, 2022 · An ERV and an HRV look the same but treat humidity differently. One of the most frequently asked questions regarding the type of balanced ventilation devices known as the …

Jun 13, 2024 · Learn some of the key steps in the installation of a Zehnder ERV including hanging the unit and ducting for air distribution.

May 31, 2023 · Rather than running an ERV or HRV indiscriminately, it can be designed to operate on a sensor or timer switch. In either case, the ERV could be called into action when …

Mar 27, 2025 · Building Science Ventilating With a Super-Efficient ERV How a Zehnder ERV works to improve the quality of the indoor environment

Oct 8, 2018 · All HRV/ERV units require routine filter changes, usually two or three times per year, as well as regular cleaning of exterior exhaust and intake vents. Building maintenance must be …

Jul 28, 2010 · Sheri, Either an ERV or an HRV will work to ventilate your home; I wouldn't get too caught up in the differences between ERVs and HRVs if I were you. The UltimateAir …

Jun 26, 2020 · I’m finally done with the insulation project and trying to move on ERV project. I have bought Panasonic FV-10VE1, have some questions regarding ERV and unvented attic. …