An HRV for a condo or apartment where space is the main constraint. Anyone with room for a full size unit gets far better recovery for the money from the Broan or HERO.
Amazon $1,131.63The Fantech FLEX 100H rates 3.1 among whole-house HRV ERV or HRVs; the Pioneer ECOasis 150 rates 2.8 among single room ones. The Pioneer ECOasis 150 costs $43.63 less ($1,088 vs $1,131.63).

A wall mounted ERV and air purifier in one for a single large room or small apartment. Buyers who want maximum fresh air per dollar will do better with a ducted unit.
Amazon $1,088Prices 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 HRV and single room), 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 | Fantech FLEX 100H | Pioneer ECOasis 150 |
|---|---|---|
| Overall rating | 3.1/5 | 2.8/5 |
| Heat recovery 25% | 20 61% sensible recovery | 50 recovery efficiency not published (neutral score used) |
| Efficiency 15% | 50 power draw not published (neutral score used) | 34 2 cfm per watt (88 cfm, 43.8 W) |
| Value 25% | 45 $10.68 per cfm ($1,131.63, 106 cfm) | 62 $12.36 per cfm ($1,088, 88 cfm) |
| Quiet 10% | 50 noise not published (neutral score used) | 50 noise not published (neutral score used) |
| Warranty 25% | 67 5-year warranty | 0 warranty not published, scored as none |
Specifications
| Fantech FLEX 100H | Pioneer ECOasis 150 | |
|---|---|---|
| Performance | ||
| Core | HRV (heat only) | ERV (heat and moisture) |
| Install | Ducted, whole house | Ductless, single room |
| Airflow | 106 cfm | 88 cfm |
| Sensible recovery | 61% | - |
| Power draw | - | 43.8 W |
| Build | ||
| Frost protection | Yes | - |
| HVI certified | Yes | No |
| Warranty | 5 years | - |