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Costway GreyVolt 12k BTU Mini Split Heat Pump (21 SEER2, 208-230V, Energy Star) - A1 SolarStore
Costway GreyVolt 12k BTU Mini Split Heat Pump (21 SEER2, 208-230V, Energy Star) - A1 SolarStore
Costway GreyVolt 12k BTU Mini Split Heat Pump (21 SEER2, 208-230V, Energy Star)
Costway GreyVolt 12k BTU Mini Split Heat Pump (21 SEER2, 208-230V, Energy Star)
Costway GreyVolt 12k BTU Mini Split Heat Pump (21 SEER2, 208-230V, Energy Star)
Costway GreyVolt 12k BTU Mini Split Heat Pump (21 SEER2, 208-230V, Energy Star)
Costway GreyVolt 12k BTU Mini Split Heat Pump (21 SEER2, 208-230V, Energy Star)
Costway GreyVolt 12k BTU Mini Split Heat Pump (21 SEER2, 208-230V, Energy Star)
Costway GreyVolt 12k BTU Mini Split Heat Pump (21 SEER2, 208-230V, Energy Star)
Costway GreyVolt 12k BTU Mini Split Heat Pump (21 SEER2, 208-230V, Energy Star)
Costway GreyVolt 12k BTU Mini Split Heat Pump (21 SEER2, 208-230V, Energy Star)
Costway GreyVolt 12k BTU Mini Split Heat Pump (21 SEER2, 208-230V, Energy Star)
Costway GreyVolt 12k BTU Mini Split Heat Pump (21 SEER2, 208-230V, Energy Star)
Costway GreyVolt 12k BTU Mini Split Heat Pump (21 SEER2, 208-230V, Energy Star)
Costway GreyVolt 12k BTU Mini Split Heat Pump (21 SEER2, 208-230V, Energy Star)
Costway GreyVolt 12k BTU Mini Split Heat Pump (21 SEER2, 208-230V, Energy Star)
Costway GreyVolt 12k BTU Mini Split Heat Pump (21 SEER2, 208-230V, Energy Star)
Costway GreyVolt 12k BTU Mini Split Heat Pump (21 SEER2, 208-230V, Energy Star)

Costway GreyVolt 12k BTU Mini Split Heat Pump (21 SEER2, 208-230V, Energy Star)

$529.01
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(16 ratings)
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Customer reviews & Questions

Verified buyer reviews
Customer Reviews A1 SolarStore on trustpilot
  • Reviews (16)
  • Questions
Jenny
02/03/2026
Costway 10k BTU 3-in-1 Portable Air Conditioner with Fan and...
I was skeptical about portable ACs but this one actually delivers. My room goes from stuffy to comfortable in under 15 minutes. Easy to move between rooms too.
Tom
10/22/2025
Costway 10k BTU 3-in-1 Portable Air Conditioner with Fan and...
Bought this for my basement and it handles it well. Installation was straightforward, the window kit fit my sliding window no problem. A little bulky but the wheels make it manageable.
Diane Kaufman
07/22/2025
Costway 10k BTU 3-in-1 Portable Air Conditioner with Fan and...
I've tried cheaper portable ACs before and they were disappointing. This one actually cools my 300 sq ft room efficiently. The timer function is something I use every single night.
Victor S.
07/05/2025
Costway Blast 12k BTU Mini Split Air Conditioner (20 SEER2, 115V)
Basement finished space comfortable. No more swamp cooler mess.
FRANK j.
04/21/2025
Costway GreyVolt 12k BTU Mini Split Heat Pump (21 SEER2,...
Kids bedroom approved no noise. Whisper quiet bedtime favorite.
Kevin Park
04/11/2025
Costway 10k BTU 4-in-1 Portable Air Conditioner with...
The child lock alone was worth it for me. I have a 4 year old who loves pressing buttons. Beyond that, cools my living room quickly and the sleep mode actually works well.
Kevin h.
04/02/2025
Costway GreyVolt 18k BTU Mini Split Heat Pump (21 SEER2,...
Garage man cave dry cool. Dehumidify mode basement killer
GEORGE P.
03/15/2025
Costway Airtural 12k BTU Mini Split Heat Pump (21 SEER2,...
Home office zone perfect. Remote scheduling matches work hours exactly.
ahmed S.
02/28/2025
Costway Blast 9k BTU Mini Split Heat Pump (17 SEER2, 208-230V)
blast 9k value king. 17 seer2 savings good price
miguel R.
02/22/2025
Costway Airtural 24k BTU Mini Split Heat Pump (21 SEER2,...
costway airtural beast. 24k btu handles open floor plan no sweat.
rajesh patel
01/20/2025
Costway Airtural 18k BTU Mini Split Heat Pump (21 SEER2,...
18k btu perfect 900 sq ft addition. Cools evenly no hot spots.
Isaac G.
01/20/2025
Costway SEERXtreme 18k BTU Mini Split Heat Pump (25 SEER2,...
25 SEER2 efficiency real deal. Electric bill dropped 60% first month
James
05/29/2024
Costway 10k BTU 4-in-1 Portable Air Conditioner with...
Does what it says. I have it in a 300 sq ft room and it handles it easily. The continuous drain option is great, I just ran a hose to a floor drain and forget about it.
Marcus T.
03/21/2024
Costway 10k BTU 3-in-1 Portable Air Conditioner with Fan and...
Got this for my home office and it's been a lifesaver. Cools down the room fast and the remote makes it super easy to adjust without getting up. Setup took maybe 20 minutes.
Nadia R
08/16/2023
Costway 10k BTU 4-in-1 Portable Air Conditioner with...
Love the look of this one. The black finish is sleek and it fits perfectly in my modern living room. Cools fast and the sleep mode is genuinely quiet.
Have a question about Costway GreyVolt 12k BTU Mini Split Heat Pump (21 SEER2, 208-230V, Energy Star)? Feel free to ask!

Specification

Zones1-zone
ManufacturerCostway
Manufacturer Part #FP10791US-HS+
TypeMini-Splits
BTU Capacity12000 BTU
Max. Coverage Area750 sq.ft.
Tonnage1 Ton
Refrigerant CompatibilityR32
Number of speeds3-speed
Phase1-phase
Voltage208-230 V
Decibel Rating23 dBA
Mount typeWall Mount
Filter TypeReusable Filter
ColorGray
Features
  • Dehumidifier
  • Heat pump
  • High efficiency
  • Inverter technology
  • Quiet
  • Timer
Air Handler Dimensions LxWxH30 x 8 x 11.5 in
Condenser Dimensions L x W x H28 x 11 x 21 in
SEER221.0 SEER2
Warranty8 Years

More Costway products

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Attachments

User's Manual

About product

The GreyVolt Series 12,000 BTU Mini Split AC is ideal for bedrooms, living rooms, and home offices up to 750 sq. ft., where its stylish gray indoor unit complements modern decor while providing targeted ductless cooling and heating.

This Energy Star-certified unit offers 4 modes (cool, heat, dry, fan) with inverter technology for 21 SEER2/10 HSPF2 efficiency, ECO mode, and up to 60% energy savings over electric resistance heating. A 24-hour timer, ≤23 dB quiet operation, and 51 pints/day dehumidification ensure peaceful rest and humidity control, while auto defrost extends reliability.

The sleek gray design pairs with R32 refrigerant for eco-friendly performance and lower greenhouse gas emissions. Self-cleaning at 134.6°F, washable filters, and voice/remote control simplify maintenance. Pre-charged condenser, full installation kit on 208-230V power, ETL certification, plus 8-year compressor/5-year parts warranty deliver hassle-free, high-efficiency comfort.

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