DELLA Sylro 15,500 BTU Inverter Portable AC Review: Dual Hose
A dual-hose inverter portable rated 15,500 BTU ASHRAE and 12,000 BTU SACC for up to 550 sq ft, with target humidity control, a CEER of 12.8 and app control.
By Daniel Brooks
Updated October 18, 2026
The DELLA Sylro 15,500 BTU portable is a dual-hose inverter unit with one feature most portables lack: you can set a target humidity. DELLA rates it at 15,500 BTU ASHRAE and 12,000 BTU SACC for rooms up to 550 square feet, lists a CEER of 12.8, and adds Wi-Fi, Alexa, Google Home and geo-location. It is newer than most units among the dual-hose portable air conditioners we cover, with a 4.0 out of 5 average from 5 ratings so far.
The model number is 048-C-DPACIN-12. It runs on 115 volts and lists 1700 watts.
Our Verdict
The Sylro is a strong pick for a bedroom, apartment or home office in a humid climate. The 12,000 BTU SACC rating gives it plenty of capacity for 550 square feet, the dual hoses keep hot air from re-entering, and the inverter and CEER of 12.8 point to low running costs. Being able to choose a humidity level from 30 to 70% is useful in muggy summers.
The caution is the noise figure. The title promises 38 dB, the spec sheet lists 42 dB, and DELLA’s own FAQ says as low as 49 dB in low-speed cooling. Expect quiet operation in sleep mode, but do not count on the lowest number in every setting. The rating count is also small so far.
DELLA Sylro 15,500 BTU Inverter Portable Air
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Key Specifications
| Feature | Specification |
|---|---|
| Brand | DELLA |
| Model | 048-C-DPACIN-12 |
| Type | Dual-hose inverter smart portable air conditioner |
| Cooling Capacity | 15,500 BTU ASHRAE / 12,000 BTU SACC |
| Room Size | Up to 550 sq ft |
| Power | 115 volts, 1700 watts |
| Efficiency | CEER 12.8 |
| Noise Level | 38 dB claimed, 42 dB listed, 49 dB low-speed cooling per FAQ |
| Humidity Control | Target 30 to 70% |
| Dehumidifying | Up to 116.5 pints per day |
| Dimensions | 14.02″W x 16.65″D x 27.13″H |
| Weight | 55.4 pounds |
| Smart Control | DELLA app, Alexa, Google Home, geo-location |
| Window Fit | 18.1 to 61.4 inches |
Cooling Capacity and Room Size
DELLA lists 15,500 BTU ASHRAE and 12,000 BTU SACC. The SACC number is the one to size against, and it is high enough for most living rooms and large bedrooms. DELLA matches it to rooms up to 550 square feet, which is a conservative figure for this capacity and suits bedrooms, apartments and home offices.
The inverter system adjusts power to hold a stable temperature, and with a CEER of 12.8 the unit should use less energy than conventional portables. Annual energy use is listed at 592 kilowatt hours.
Dual-Hose Design and Installation
The dual-hose design prevents hot air from re-entering the room, which DELLA says gives stronger, more consistent airflow and faster cooling than a single-hose unit.
The upgraded window kit includes five extended panels and fits single-hung, double-hung and sliding windows from 18.1 to 61.4 inches. That makes it a good option for large or modern windows that standard kits cannot fill. The unit is 14.02 inches wide and 27.13 inches tall, weighs 55.4 pounds, and rolls on 360 degree wheels.
Humidity Control and Dehumidifying
Most portables just dehumidify continuously. The Sylro lets you set a target humidity level between 30% and 70%, so it removes moisture only until the room reaches your setting. In dedicated dehumidifier mode, it can remove up to 116.5 pints per day. That is a real advantage in hot, humid or muggy climates. Auto evaporation means no daily draining in normal use.
Noise
Noise is the one area with mixed numbers. DELLA promotes enhanced noise dampening and 38 dB in the title, the specifications list 42 dB, and the brand’s FAQ says low-speed cooling can be as low as 49 dB, depending on mode, room conditions and installation. Sleep mode, auto swing and a 24-hour timer help at night, and the buzzer can be switched off.
Controls and Smart Features
The DELLA Wi-Fi app, the remote and voice commands through Alexa and Google Home all control the unit. Note that it supports the 2.4 GHz Wi-Fi band only. Geo-location technology adjusts cooling to save energy when you are away and brings the room back to comfort when you return.
On the unit you get a large LED display, Fahrenheit and Celsius switching, a clean filter reminder and an ambient light that shows the active mode. There are four modes, Cool, Fan, Dry and Auto, four fan speeds and a child lock. DELLA also offers 24/7 live chat support.
Who It Suits Best
The Sylro suits a humid home where you want both cooling and precise moisture control, plus app and voice control. It is also a good fit for large or modern windows. It is less suited to buyers who want a long track record, or to light sleepers who need a guaranteed noise figure.
Pros and Cons
| Pros | Cons |
|---|---|
| 12,000 BTU SACC with inverter | Noise figures differ in the listing |
| Target humidity from 30 to 70% | Only 5 ratings so far |
| CEER of 12.8 | 2.4 GHz Wi-Fi only |
| Alexa, Google Home and geo-location | No heat mode |
| Window kit fits 18.1 to 61.4 inches | 1700 watt draw at full power |
Who Should Buy It
| Who Should Buy It? | Who Should Look Elsewhere? |
|---|---|
| Humid and muggy climates | Buyers who want a long track record |
| Large or modern windows | Light sleepers who need guaranteed quiet |
| Smart home users | Buyers who need heat |
| Bedrooms and apartments | Very large open-plan spaces |
For more choices, see our picks for the best smart dual-hose portable air conditioners and the best inverter portable air conditioners.
Final Verdict
The DELLA Sylro 15,500 BTU combines dual-hose inverter cooling, a CEER of 12.8 and real humidity control with full smart features. It is an excellent match for humid homes and large windows. You can check the current price and details for the DELLA Sylro 15,500 BTU Inverter Portable Air Conditioner.
Frequently Asked Questions
What size room does the DELLA Sylro 15,500 BTU cool?
DELLA rates it for rooms up to 550 square feet, with 12,000 BTU SACC cooling.
Can I set a target humidity?
Yes. You can choose a level from 30% to 70%.
Which Wi-Fi band does it use?
It supports the 2.4 GHz band only.
How loud is it?
DELLA quotes as low as 38 dB, the specifications list 42 dB, and the FAQ says low-speed cooling can be as low as 49 dB.
About the author
Daniel Brooks is a home cooling editor at WikiCooling, covering window, portable, through-the-wall and mini-split air conditioners, fans, and dehumidifiers. He researches cooling capacity, energy efficiency, noise levels, installation requirements, and buyer feedback to help homeowners choose the right unit for their room size, climate, and budget.