Broan AI Series B230H75RT HRV
The HRV for a large home in a cold climate, with the most airflow here and easy commissioning. Smaller homes don’t need its capacity or its price.
Amazon $1,690$1,690
The Broan AI Series B230H75RT HRV is the better ERV or HRV overall, rated 3.8 to 3.1. The Broan AI Series B230H75RT HRV leads on heat recovery and value. The Fantech FLEX 100H costs $558.37 less ($1,131.63 vs $1,690).
Fantech FLEX 100H
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 $1,131.63$1,131.63
Prices 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.
Which should you buy?
- Choose the Broan AI Series B230H75RT HRV for heat recovery (78% sensible recovery vs 61% sensible recovery) and value ($7.51 per cfm ($1,690, 225 cfm) vs $10.68 per cfm ($1,131.63, 106 cfm)).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every whole-house HRV ERV or HRV; a clear win is highlighted. How we rank explains each one.
| Factor weight | Broan AI Series B230H75RT HRV | Fantech FLEX 100H |
|---|---|---|
| Overall rating | 3.8/5 | 3.1/5 |
| Heat recovery 25% | 77 78% sensible recovery | 20 61% sensible recovery |
| Efficiency 15% | 50 power draw not published (neutral score used) | 50 power draw not published (neutral score used) |
| Value 25% | 71 $7.51 per cfm ($1,690, 225 cfm) | 45 $10.68 per cfm ($1,131.63, 106 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 B230H75RT HRV | Fantech FLEX 100H | |
|---|---|---|
| Performance | ||
| Core | HRV (heat only) | HRV (heat only) |
| Install | Ducted, whole house | Ducted, whole house |
| Airflow | 225 cfm | 106 cfm |
| Sensible recovery | 78% | 61% |
| Build | ||
| Frost protection | Yes | Yes |
| Filter | MERV 8 | - |
| ENERGY STAR | No | - |
| HVI certified | Yes | Yes |
| Warranty | 5 years | 5 years |