Type the model number from your existing air exchanger’s label. We will tell you whether it is an HRV or ERV, how many CFM it moves, the duct size, and the right way to clean its core. Add the serial number to estimate its age.
Building code sets the whole-house ventilation rate with a simple formula: CFM = (0.01 × square feet) + 7.5 × (bedrooms + 1). Enter your house below. If you looked up a model above, we will compare it.
Every airflow, duct size and cleaning rule in this tool comes from the manufacturer’s own manual, product page or catalog, and each result links to its source. We would rather say “not in our table yet” than guess. Rated airflow is measured at low duct resistance, so a real installation with long duct runs or dirty filters delivers less.
| Brand | Models covered |
|---|---|
| RenewAire | EV130, EV200, EV240, EV300 |
| Venmar / Broan | HRV110, ERV130 and the HRV/ERV 70-250 series from the Broan fresh air catalog |
| Lifebreath | 155 MAX, 205 MAX, 267 MAX, 195 DCS, MAX XTR |
| Panasonic | Intelli-Balance FV-10VEC2, FV-10VE2, FV-20VEC1 |
| Lennox | Healthy Climate HRV3, HRV5, HRV6 and ERV5 models |
| Carrier | HRVCR / ERVCR small, large and vertical models |
| Honeywell | HR150, HR200, ER150, ER200 |
| Aprilaire | Model 8100 |
| Fantech | SHR 1504 |
Serial-number dating currently works for Lifebreath (two formats) and RenewAire. For other brands, the tool shows what it can and tells you plainly when it cannot.
Not on the list? Email us the model and a photo of the label or call (888) 762-1334.
Once you know what you have, see how it suits your climate.
