ACiQ Extreme 18,000 BTU (Low Ambient) vs Senville AURA 18,000 BTU (Cold Climate)
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Quick take: The Senville AURA 18,000 BTU (Cold Climate) costs $207 less.
| Spec | ACiQ Extreme 18,000 BTU (Low Ambient) | Senville AURA 18,000 BTU (Cold Climate) |
|---|---|---|
| Price | ~$2,297 | ~$2,090 |
| Type | Single-Zone | Single-Zone |
| Capacity | 18k BTU | 18k BTU |
| Coverage | ~1,000 sq ft | ~1,000 sq ft |
| SEER2 (cooling) | 21.4 | 21.4 |
| HSPF2 (heating) | 11 | 11 |
| Low-Ambient Heating | to -22°F | to -22°F |
| Max heat at 5°F (NEEP) | 18,000 BTU | not listed |
| Heat kept at 5°F | 100% of rated | — |
| Refrigerant | R-454B | R-454B |
| Zones | Single zone | Single zone |
| Voltage | 230V | 230V |
| WiFi Control | Built-in | Built-in |
| Install | ACiQ is Ferguson's house brand and is sold as a professional-install system: the flare lineset is sold separately and the unit needs refrigerant charging and evacuation, so it is not a DIY kit. The 12-year compressor and 7-year parts terms depend on online registration, and R-454B calls for an installer comfortable with A2L refrigerant. A 20 to 25 A breaker and 1/4 in. by 1/2 in. lines are listed. | Professional installation is required for the 10-year compressor / 5-year parts warranty, which also needs online registration. The system runs on a 16 to 20 A breaker with a 1/4 in. liquid and 1/2 in. gas lineset sold separately, and an Alexa USB Wi-Fi kit is included. |
| Warranty | 12 years compressor / 7 years parts with online registration. | 10 years compressor / 5 years parts with online registration; professional installation is required for the warranty to be valid. |
Pros & cons
ACiQ Extreme 18,000 BTU (Low Ambient)
- ✓11.0 HSPF2 matches the Senville Aura 18k
- ✓12-year compressor / 7-year parts with registration
- ✓AHRI certificate number published
- ✗About $680 more than the ACiQ Standard 18k
- ✗Pro install and registration are required for the long warranty
- ✗Sold through dealers rather than a maker store, so price varies by seller
Senville AURA 18,000 BTU (Cold Climate)
- ✓11.0 HSPF2 and heating to -22°F for a retailer-sold 18k
- ✓10-year compressor warranty with registration and pro install
- ✓Alexa USB kit included for Wi-Fi
- ✓Energy Star listed by the retailer
- ✗Lineset is sold separately
- ✗About $1,120 more than the Senville Leto 18k
- ✗No certified capacity at 5°F is published, since it has no NEEP listing
- ✗Warranty requires pro install plus online registration

