QuietCool Energy Saver ES-5400 RF
The efficient version of QuietCool’s ducted fan for a typical home, with a very low-power low speed for running all night.
Amazon $1,499$1,499
The QuietCool Energy Saver ES-5400 RF and the Solatube EPS Ultra are evenly matched, rated 3.8 and 3.7. The QuietCool Energy Saver ES-5400 RF leads on warranty. The Solatube EPS Ultra wins on value and efficiency. The Solatube EPS Ultra costs $614 less ($885 vs $1,499).
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
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 QuietCool Energy Saver ES-5400 RF for warranty (10-year warranty on the motor vs 5-year warranty on the motor).
- Choose the Solatube EPS Ultra for value ($250.57 per 1,000 CFM ($885, 3,532 CFM) vs $393.44 per 1,000 CFM ($1,499, 3,810 CFM)) and efficiency (9.2 CFM per watt vs 7.7 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 | QuietCool Energy Saver ES-5400 RF | Solatube EPS Ultra |
|---|---|---|
| Overall rating | 3.8/5 | 3.7/5 |
| Value 30% | 59 $393.44 per 1,000 CFM ($1,499, 3,810 CFM) | 91 $250.57 per 1,000 CFM ($885, 3,532 CFM) |
| Efficiency 20% | 45 7.7 CFM per watt | 70 9.2 CFM per watt |
| Noise 15% | 64 50.7 dBA at high speed | 50 noise rating not published (neutral score used) |
| Damper 10% | 33 R-5 insulated damper | 40 R-6 insulated damper |
| Warranty 25% | 100 10-year warranty on the motor | 44 5-year warranty on the motor |
Specifications
| QuietCool Energy Saver ES-5400 RF | Solatube EPS Ultra | |
|---|---|---|
| Airflow | ||
| Airflow, high speed | 3,810 CFM | 3,532 CFM |
| Power, high speed | 497 W | 383 W |
| Efficiency | 7.7 CFM/W | 9.2 CFM/W |
| Speeds | 2 | 7 |
| Noise | 50.7 dBA | - |
| Install | ||
| Mount | Ducted | Ducted |
| Damper | R-5 insulated | R-6 insulated |
| Ceiling opening | 14.25 x 30.25 in | - |
| Attic vent area needed | 6.7 sq ft | 6 sq ft |
| Voltage | 120 V | 120 V |
| Remote or wall control | Yes | Yes |
| App or remote monitoring | No | - |
| Warranty | ||
| Warranty | 10 years | 5 years |
| Released | - | 2023-06 |