The ERV to pick for a large or tight home that needs more than 150 cfm, with easy self balancing setup. Smaller homes will be oversized by it.
Amazon $1,519The Broan AI Series B210E75RS ERV rates 3.9 among whole-house ERV ERV or HRVs; the Fantech HERO 150H rates 3.7 among whole-house HRV ones. The Fantech HERO 150H costs $344 less ($1,175 vs $1,519).

The heat recovery pick for a mid size home in a cold climate, backed by long core and motor warranties. It draws more power at full airflow than the Broan and ACiQ units.
Amazon $1,175Prices were last checked November 2, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Scores side by side
These two sit in different type classes (whole-house ERV and whole-house HRV), and each is scored against the reference points for its own class, so a rating says how well each does among its own type peers. How we rank explains each factor.
| Factor weight | Broan AI Series B210E75RS ERV | Fantech HERO 150H |
|---|---|---|
| Overall rating | 3.9/5 | 3.7/5 |
| Heat recovery 25% | 87 81% sensible recovery | 83 80% sensible recovery |
| Efficiency 15% | 50 power draw not published (neutral score used) | 28 1 cfm per watt (150 cfm, 150 W) |
| Value 25% | 72 $7.37 per cfm ($1,519, 206 cfm) | 68 $7.83 per cfm ($1,175, 150 cfm) |
| Quiet 10% | 50 noise not published (neutral score used) | 50 noise not published (neutral score used) |
| Warranty 25% | 67 5-year warranty | 67 5-year warranty |
Specifications
| Broan AI Series B210E75RS ERV | Fantech HERO 150H | |
|---|---|---|
| Performance | ||
| Core | ERV (heat and moisture) | HRV (heat only) |
| Install | Ducted, whole house | Ducted, whole house |
| Airflow | 206 cfm | 150 cfm |
| Sensible recovery | 81% | 80% |
| Power draw | - | 150 W |
| Build | ||
| Frost protection | Yes | Yes |
| Filter | MERV 8 | - |
| ENERGY STAR | No | Yes |
| HVI certified | Yes | Yes |
| Warranty | 5 years | 5 years |