Solatube EPS Ultra
A ducted EC fan for homes of 2,000 to 3,200 sq ft at a low price from Solatube’s own store; the 5-year motor warranty is the trade-off.
Amazon $985 Solatube $885$885
The Solatube EPS Ultra is the better whole house fan overall, rated 3.7 to 3.5. The Solatube EPS Ultra leads on efficiency. The Solatube EPS Ultra costs $145 less ($885 vs $1,030).
Solatube EPS Extreme
A ducted EC fan for homes of 3,000 sq ft and up at a low price from Solatube’s own store; the 5-year motor warranty is the trade-off.
Amazon $1,130 Solatube $1,030$1,030
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 Solatube EPS Ultra for efficiency (9.2 CFM per watt vs 7.1 CFM per watt).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 3,001 to 5,000 CFM whole house fan; a clear win is highlighted. How we rank explains each one.
| Factor weight | Solatube EPS Ultra | Solatube EPS Extreme |
|---|---|---|
| Overall rating | 3.7/5 | 3.5/5 |
| Value 30% | 91 $250.57 per 1,000 CFM ($885, 3,532 CFM) | 93 $241.39 per 1,000 CFM ($1,030, 4,267 CFM) |
| Efficiency 20% | 70 9.2 CFM per watt | 35 7.1 CFM per watt |
| Noise 15% | 50 noise rating not published (neutral score used) | 50 noise rating not published (neutral score used) |
| Damper 10% | 40 R-6 insulated damper | 40 R-6 insulated damper |
| Warranty 25% | 44 5-year warranty on the motor | 44 5-year warranty on the motor |
Specifications
| Solatube EPS Ultra | Solatube EPS Extreme | |
|---|---|---|
| Airflow | ||
| Airflow, high speed | 3,532 CFM | 4,267 CFM |
| Power, high speed | 383 W | 597 W |
| Efficiency | 9.2 CFM/W | 7.1 CFM/W |
| Speeds | 7 | 7 |
| Install | ||
| Mount | Ducted | Ducted |
| Damper | R-6 insulated | R-6 insulated |
| Attic vent area needed | 6 sq ft | 8 sq ft |
| Voltage | 120 V | 120 V |
| Remote or wall control | Yes | Yes |
| Warranty | ||
| Warranty | 5 years | 5 years |
| Released | 2023-06 | 2023-06 |