Introducing the C&H 6K-BTU Split AC, your ultimate solution for year-round comfort! This HYPER Heat Pump system boasts an impressive 26.5 SEER rating, ensuring energy efficiency while keeping your space cozy. With a powerful 6000 BTU capacity, it heats and cools effectively, even in extreme temperatures down to -22 F. Enjoy the convenience of remote control and WiFi connectivity, allowing you to adjust settings from anywhere. The unit features ECO Mode, Follow Me technology, and nine different modes to suit your needs. Plus, with fully modulating fan speeds and louver control, you can customize your comfort. The gold-coated coils and carbon filter ensure durability and clean air. Backed by a 7-year compressor and 5-year parts warranty, this AC is built to last. Say goodbye to backup heat sources and hello to efficient heating and cooling with the C&H Split AC!
C&H Astoria 6K Wall Mount Mini Split — 230V, -22°F Heat Pump + AC
Astoria, the premium single and multi zone wall mounted series, introduces Cooper & Hunter's first 6K Btu/h unit. This package includes one Astoria wall mount indoor unit with remote and Wi-Fi, and one -22°F-rated heat pump outdoor unit. Extra low temperature heating delivers up to 69% of rated capacity down to -22°F, making it a viable primary heat source without backup heat.
Revolutionary design offers the most convenient disassembly on the market — easy-to-remove fan blower, front E-Box and PCB, and a kickstand on the front cover panel. Airflow is vastly improved by a larger inlet and outlet design plus auto-swinging vertical and horizontal louvers. 26.5 SEER efficiency. Free nationwide shipping included.
✅ This Cooper & Hunter Astoria Package Includes
(1) Astoria Wall Mount Indoor Unit — with Remote & Wi-Fi
Astoria Series wall mount indoor unit — revolutionary design with easy-to-remove fan blower, front E-Box, and kickstand on the front cover panel. Available in 6K, 9K, 12K, 18K, 24K, 30K, and 36K BTU models.
★ Product Features
Extra Low Temperature Heating
Delivers up to 69% of rated heating capacity down to -22°F — viable as a primary heat source without backup heat in most U.S. climates.
Stepless Frequency Adjustment
Precise inverter control maintains stable room temperature while reducing sound level and saving energy.
Basepan & Crankcase Heater
Built-in outdoor unit heater prevents ice accumulation and protects the compressor in freezing weather.
Gold Coated Coils
Aluminum golden hydrophilic pre-coated fins on both indoor and outdoor coils resist corrosion and inhibit microbial growth.
Refrigerant Leak Detection
Built-in sensor monitors refrigerant levels and alerts you to potential leaks before performance drops.
Easy-Access Service Design
Revolutionary layout with easy-to-remove fan blower, front E-Box and PCB, and a kickstand on the front cover panel — the most convenient disassembly on the market.
Dual Auto-Swing Louvers
Vertical and horizontal auto-swing louvers eliminate hot or cold spots by circulating air into every corner of the room.
Wi-Fi + Remote Included
Includes a remote control and Wi-Fi kit for smart control via the C&H app. Also compatible with 3rd party 24V thermostats.
Auto Restart Function
Resumes the last settings after a power outage — no need to reprogram after storms or grid interruptions.
Condenser High-Temp Protection
Built-in protection shuts the system down if the condenser overheats, extending the life of the compressor.
ECO Mode & Follow Me
ECO mode optimizes efficiency during extended operation. Follow Me uses the remote's sensor to regulate comfort based on where you are.
Quiet Outdoor Operation
Engineered to produce very little noise while maintaining significant BTU output — good neighbor approved.
Why Buy From Mini Split Warehouse
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Free Nationwide Shipping
No weight limits. No dimensional charges. Free freight delivery on every order.
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Factory Warranty Included
Every unit ships with the full manufacturer warranty — no third-party coverage needed.
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Lowest Prices Online
We cut out the middleman. Compare us against any competitor — we back our pricing.
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Shop Pioneer, Daikin, Midea, MRCOOL, Cooper & Hunter, and more in one place.
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Real Technical Support
Call or email our team. We answer specs, sizing, and installation questions — not scripts.
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3% Cash Back Offer
Pay by check or bank transfer and get 3% back — one of the easiest savings available.
✅ Factory Warranty Coverage
7
Year Compressor
5
Year Parts
*Warranty registration required at cooperandhunter.us/warranty
❓ Frequently Asked Questions
What makes the Astoria series different?
Astoria is Cooper & Hunter's premium wall-mount series with a revolutionary service design — easy-to-remove fan blower, front-accessible E-Box and PCB, and a kickstand on the front cover panel. It's the most convenient disassembly on the market for installers and technicians.
Is this a 115V or 230V system?
This 6K Astoria model is 208/230V single phase — it requires a dedicated 230V circuit. A licensed HVAC installer will wire this into your panel.
Can I use a 3rd party thermostat?
Yes. The Astoria is compatible with 3rd party 24V thermostats, in addition to the included IR remote and Wi-Fi control via the C&H app.
Will my warranty be valid if I don't use a licensed installer?
No. To maintain the manufacturer warranty, this system must be installed by a licensed HVAC technician. DIY installation voids the warranty. Registration is also required at cooperandhunter.us/warranty.
I installed tha systme in my legal office, and it has completely changed the comfort level of the space. As someone who works long hours reviewing documents and meeting with clients, I needed an HVAC solution that was powerful, quiet, and efficient—and this unit nailed all three. Our office isn’t very large, but it’s filled with books, files, and tech equipment that tend to trap heat. This mini split cools the room down within minutes without ever being intrusive. What really stood out to me was how silent it is. Whether I’m on a client call or recording a deposition, I don’t have to worry about any distracting noise in the background. The Wi-Fi control makes it effortless to manage the climate, even when I’m out for court appointments.
Thanks, little mini-split, you're the real MVP
Kay Seay · March 2025
My old space heater sounded like a dying lawnmower. Well, let's just say it was more 'window' than 'AC'. I'm a light sleeper, and even at night, it's just a soft, almost imperceptible hum. It's not just a mini-split, it's a lifestyle upgrade. It's the difference between "I hate this space" and "I never want to leave." If you're dealing with a weird, temperature-challenged room, do yourself a favor and get this. Your sanity will thank you."
I genuinely can’t recommend this unit enough.
H. Robinson · June 2025
I was blown away by how much power this unit packs into such a compact form. In my small office, it didn’t just handle the heat and cold—it dominated it. The unit includes handy features like Wi‑Fi control and auto‑restart after power outages. The “follow-me” or occupancy sensor learns where I am and adjusts accordingly—helpful for both comfort and efficiency. Installation required a pro—especially for the refrigerant lines. It delivers premium-level comfort—quiet cooling and heating with smart functionality and top-tier SEER efficiency.
Did It Meet Expectations?
Fred C. Ott · September 2025
If you have a small to medium room, want a unit that works year-round (not just for summer), and are willing to invest a bit up front, this CH 6,000 BTU Hyper Heat pump is a great buy. For someone who uses AC & heating regularly, it offers strong value: comfort, efficiency, and decent features.
if you need to heat or cool a small space efficiently, it's a solid choice
Theo G. · February 2025
So, I needed something for my tiny office. You know, the one that's basically a converted closet? I saw the CH 6000 BTU 27 SEER Mini-Split online and thought, "Alright, let's give this a shot."
Yeah, it cools. And it heats. Like, surprisingly well. My office was actually cozy when it was freezing outside. I was shocked. And in the summer, it's like a little ice cave in there. Perfect for focusing
it runs quietly, and it looks great on the wall.
Mr Banks · April 2025
I had it professionally installed (because refrigerant lines DIY = no thanks), and the tech told me it was one of the easier setups he’d done. The indoor unit is slim and clean-looking — it doesn’t scream "appliance" on the wall, which I appreciate.
Built-in Wi-Fi control. I’ve adjusted the temp from bed more times than I care to admit. It remembers your settings after a power outage (very underrated feature). the noise level is barely noticeable.
It’s a "buy once, cry once" kind of product that delivers premium comfort.
Louie D. Humbert · April 2026
It’s much more compact than the 9k or 12k units. It doesn't dominate the wall or look like an industrial eyesore. Setting up the app was straightforward. I love being able to turn the heat up from my phone 15 minutes before I walk into the office in the morning.
Home Gym Climate Upgrade
Donald Zook · August 2026
Transforming my 140-square-foot garage-nook home gym from a sweltering summer sauna and winter icebox into a year-round training sanctuary, the Cooper&Hunter Astoria 6,000 BTU Hyper Heat mini-split turned out to be the ultimate fitness upgrade. Because rubber floor mats and heavy iron trap ambient heat, standard fan setups always failed mid-set, but this ultra-compact head unit mounts unobtrusively above my power rack without crowding the wall space. Operating at a whisper-quiet hum that never drowns out my workout playlists or podcasts, its "Follow Me" remote sensor tracks temperature right at the weight bench rather than up at the ceiling, delivering precise 65°F crisp air during high-intensity intervals and rapid warmth during early-morning winter mobility routines. Even when outside temps dropped into single digits, the Hyper Heat pump kicked in instantly without hesitation, making the professional 230V wiring hassle completely worth it for a zero-excuse, climate-controlled workout space.
Quiet climate control for our Babies’ Room
Oscar Bellamy · November 2025
I installed the C&H 6,000 BTU Hyper-Heat unit in my newborn twin daughters’ bedroom, and honestly, it’s been one of the best decisions I’ve made as a new parent. I needed something small, quiet, and reliable — and this little system has delivered from day one. The installation went smoothly, and once it powered on, the difference was immediate. The room now keeps a steady temperature without the usual hot or cold pockets, which is a huge relief when I’m trying to keep two babies comfortable at the same time. What surprised me most is how whisper-quiet it is; even during late-night feedings, I barely hear a thing. The high efficiency is another big plus. I can run it for hours without worrying about spiking my energy bill, and the hyper-heat feature gives me peace of mind knowing it can handle colder nights without struggling.
It completely fixed my problem.
Phillip White · June 2026
Where I live, winters get freezing. Most heat pumps stop working when it gets super cold, but this one has "Hyper Heat." It kept me warm during a major freeze last winter without struggling once. I hate loud fans. This thing just breathes out air with a tiny whisper. I sleep right under it and don't hear a thing. Get a pro to install it. It makes sure the warranty stays good, and they have the right tools to vacuum the lines properly. Also, remember it's meant for smaller rooms.
it has been the best investment I’ve made for my inventory
Arnold Tucker · February 2026
Opening a boutique candy store comes with a unique set of challenges—mostly that sugar and chocolate are incredibly sensitive to heat and humidity. I installed the 6,000 BTU system in my shop’s "chocolate nook" a few months ago, and it has been the best investment I’ve made for my inventory. My shop isn't huge, but I have a specific area where I keep the high-end truffles and delicate gummies. I needed a unit that could maintain a strict, steady temperature without creating a massive draft that would blow sugar dust everywhere.
Easy install. Nice unit.
J Preston · January 2025
It has made my Bedroom a meat locker. Such a nice addition to the house.
Surprisingly Powerful and Efficient
Frederick Barnes · May 2025
I picked up the C&H 6000 BTU Hyper Heat Mini Split for a small office space I use at home, and I honestly wasn’t expecting to be as impressed as I am. This little unit punches way above its weight in terms of performance and efficiency. If you’ve got a small room, office, or studio that needs its own climate control, I’d absolutely recommend this unit. It’s powerful, quiet, energy-efficient, and packed with features you’ll actually use. I genuinely feel like I got high-end performance for a mid-range price. No regrets at all with this purchase.
I installed tha systme in my legal office, and it has completely changed the comfort level of the space. As someone who works long hours reviewing documents and meeting with clients, I needed an HVAC solution that was powerful, quiet, and efficient—and this unit nailed all three. Our office isn’t very large, but it’s filled with books, files, and tech equipment that tend to trap heat. This mini split cools the room down within minutes without ever being intrusive. What really stood out to me was how silent it is. Whether I’m on a client call or recording a deposition, I don’t have to worry about any distracting noise in the background. The Wi-Fi control makes it effortless to manage the climate, even when I’m out for court appointments.
C. Nelson · 2025-07-29
Thanks, little mini-split, you're the real MVP
My old space heater sounded like a dying lawnmower. Well, let's just say it was more 'window' than 'AC'. I'm a light sleeper, and even at night, it's just a soft, almost imperceptible hum. It's not just a mini-split, it's a lifestyle upgrade. It's the difference between "I hate this space" and "I never want to leave." If you're dealing with a weird, temperature-challenged room, do yourself a favor and get this. Your sanity will thank you."
Kay Seay · 2025-03-27
I genuinely can’t recommend this unit enough.
I was blown away by how much power this unit packs into such a compact form. In my small office, it didn’t just handle the heat and cold—it dominated it. The unit includes handy features like Wi‑Fi control and auto‑restart after power outages. The “follow-me” or occupancy sensor learns where I am and adjusts accordingly—helpful for both comfort and efficiency. Installation required a pro—especially for the refrigerant lines. It delivers premium-level comfort—quiet cooling and heating with smart functionality and top-tier SEER efficiency.
H. Robinson · 2025-06-20
Did It Meet Expectations?
If you have a small to medium room, want a unit that works year-round (not just for summer), and are willing to invest a bit up front, this CH 6,000 BTU Hyper Heat pump is a great buy. For someone who uses AC & heating regularly, it offers strong value: comfort, efficiency, and decent features.
Fred C. Ott · 2025-09-18
if you need to heat or cool a small space efficiently, it's a solid choice
So, I needed something for my tiny office. You know, the one that's basically a converted closet? I saw the CH 6000 BTU 27 SEER Mini-Split online and thought, "Alright, let's give this a shot."
Yeah, it cools. And it heats. Like, surprisingly well. My office was actually cozy when it was freezing outside. I was shocked. And in the summer, it's like a little ice cave in there. Perfect for focusing
Theo G. · 2025-02-28
it runs quietly, and it looks great on the wall.
I had it professionally installed (because refrigerant lines DIY = no thanks), and the tech told me it was one of the easier setups he’d done. The indoor unit is slim and clean-looking — it doesn’t scream "appliance" on the wall, which I appreciate.
Built-in Wi-Fi control. I’ve adjusted the temp from bed more times than I care to admit. It remembers your settings after a power outage (very underrated feature). the noise level is barely noticeable.
Mr Banks · 2025-04-09
It’s a "buy once, cry once" kind of product that delivers premium comfort.
It’s much more compact than the 9k or 12k units. It doesn't dominate the wall or look like an industrial eyesore. Setting up the app was straightforward. I love being able to turn the heat up from my phone 15 minutes before I walk into the office in the morning.
Louie D. Humbert · 2026-04-14
Home Gym Climate Upgrade
Transforming my 140-square-foot garage-nook home gym from a sweltering summer sauna and winter icebox into a year-round training sanctuary, the Cooper&Hunter Astoria 6,000 BTU Hyper Heat mini-split turned out to be the ultimate fitness upgrade. Because rubber floor mats and heavy iron trap ambient heat, standard fan setups always failed mid-set, but this ultra-compact head unit mounts unobtrusively above my power rack without crowding the wall space. Operating at a whisper-quiet hum that never drowns out my workout playlists or podcasts, its "Follow Me" remote sensor tracks temperature right at the weight bench rather than up at the ceiling, delivering precise 65°F crisp air during high-intensity intervals and rapid warmth during early-morning winter mobility routines. Even when outside temps dropped into single digits, the Hyper Heat pump kicked in instantly without hesitation, making the professional 230V wiring hassle completely worth it for a zero-excuse, climate-controlled workout space.
Donald Zook · 2026-08-19
Quiet climate control for our Babies’ Room
I installed the C&H 6,000 BTU Hyper-Heat unit in my newborn twin daughters’ bedroom, and honestly, it’s been one of the best decisions I’ve made as a new parent. I needed something small, quiet, and reliable — and this little system has delivered from day one. The installation went smoothly, and once it powered on, the difference was immediate. The room now keeps a steady temperature without the usual hot or cold pockets, which is a huge relief when I’m trying to keep two babies comfortable at the same time. What surprised me most is how whisper-quiet it is; even during late-night feedings, I barely hear a thing. The high efficiency is another big plus. I can run it for hours without worrying about spiking my energy bill, and the hyper-heat feature gives me peace of mind knowing it can handle colder nights without struggling.
Oscar Bellamy · 2025-11-22
It completely fixed my problem.
Where I live, winters get freezing. Most heat pumps stop working when it gets super cold, but this one has "Hyper Heat." It kept me warm during a major freeze last winter without struggling once. I hate loud fans. This thing just breathes out air with a tiny whisper. I sleep right under it and don't hear a thing. Get a pro to install it. It makes sure the warranty stays good, and they have the right tools to vacuum the lines properly. Also, remember it's meant for smaller rooms.
Phillip White · 2026-06-02
it has been the best investment I’ve made for my inventory
Opening a boutique candy store comes with a unique set of challenges—mostly that sugar and chocolate are incredibly sensitive to heat and humidity. I installed the 6,000 BTU system in my shop’s "chocolate nook" a few months ago, and it has been the best investment I’ve made for my inventory. My shop isn't huge, but I have a specific area where I keep the high-end truffles and delicate gummies. I needed a unit that could maintain a strict, steady temperature without creating a massive draft that would blow sugar dust everywhere.
Arnold Tucker · 2026-02-03
Easy install. Nice unit.
It has made my Bedroom a meat locker. Such a nice addition to the house.
J Preston · 2025-01-02
Surprisingly Powerful and Efficient
I picked up the C&H 6000 BTU Hyper Heat Mini Split for a small office space I use at home, and I honestly wasn’t expecting to be as impressed as I am. This little unit punches way above its weight in terms of performance and efficiency. If you’ve got a small room, office, or studio that needs its own climate control, I’d absolutely recommend this unit. It’s powerful, quiet, energy-efficient, and packed with features you’ll actually use. I genuinely feel like I got high-end performance for a mid-range price. No regrets at all with this purchase.
Frederick Barnes · 2025-05-20
Why Ductless Mini Splits
Experience superior comfort and energy savings with ductless mini splits, featuring industry-leading technology. These AHRI-certified mini splits use inverter technology and variable-speed DC inverter operation for optimal efficiency and quiet operation, with exceptional SEER2 performance that exceeds standard SEER ratings. Whether you prefer a wall mount, ducted, floor or ceiling-cassette design, these split air conditioner units give you zone control for precise heating and cooling in your home.
Key features:
Single or multi-zone capability for customized comfort
High-efficiency ductless design minimizes energy loss
Quiet operation for a peaceful living environment
Improved air quality with advanced filtration options
Flexible installation for any home layout
Manufacturer warranty included
Works With Alexa▾
Control your mini split with Alexa or Google Assistant, or remotely with an Android or iOS phone via Wi-Fi. Set schedules and control multiple rooms from anywhere — change your temperature settings from the office or while traveling, as long as you have an internet connection.
Energy-Star Certified▾
Our efficient mini splits are Energy-Star certified. With ultra-efficient ductless air conditioners you can expect to save upwards of 50–60% on your energy bills yearly — a great system for heating and cooling a home or business while minimizing long-term energy costs.
Heating and Cooling (to -13F/-22F)▾
Our Ultra-DC-Inverter technology lets these systems provide cooling and heating at up to −13°F/−22°F with up to 100% efficiency, so hyper-rated models can serve as your primary heat source all year round — even in the coldest climates. The hyper feature is available on most of our mini splits.
Auto Leak Detection and Diagnosis▾
Our ductless mini splits include self-cleaning, leak detection and self-diagnostics — all there to keep the system running properly for years. Enjoy peace of mind knowing your mini split will warn you of any equipment problems.
DC ULTRA Inverter Technology▾
The DC Ultra inverter compressor delivers a superb reduction in energy consumption, making these some of the most efficient systems with DC-inverter technology — it's what pushes mini splits to high SEER2 certifications while minimizing your energy costs.
Air Conditioner Size Chart▾
What BTU/ton for your area?
Square footage
BTU (ton)
100–200 sq ft
6,000 BTU | ½ ton
150–400 sq ft
9,000 BTU | ¾ ton
400–600 sq ft
12,000 BTU | 1 ton
600–800 sq ft
18,000 BTU | 1.5 ton
800–1,200 sq ft
24,000 BTU | 2 ton
1,200–1,500 sq ft
30,000 BTU | 2.5 ton
1,500–1,800 sq ft
36,000 BTU | 3 ton
1,800–2,000 sq ft
48,000 BTU | 4 ton
2,000–2,500 sq ft
60,000 BTU | 5 ton
Use this BTU/ton size chart to size your mini split indoor or outdoor unit.
What Nobody Tells You Before You Buy▾
If you are looking for mini splits, most sellers cover the basics: an outdoor compressor connected to indoor units via small refrigerant lines, high energy efficiency without duct loss, and separate room temperatures — plus the simple setup needing just a small 3-inch wall opening. All true, but there are critical technical details and long-term ownership realities almost nobody tells you before you buy.
Beyond washing your mesh air filters every few weeks, mini splits need a deep chemical cleaning of the internal blower wheel and evaporator coil every 1–2 years. Because the heads recirculate the air in your living space, neglected moisture can breed toxic black mold inside the barrel fan. And while most guides cover summer condensation draining from the indoor head, heat pumps reverse in winter: during freezing weather the outdoor unit sheds gallons of water in defrost cycles — without a base pan heater or proper drainage that runoff freezes solid, destroying fan blades and icing the compressor base.
Finally, budget for electrical and warranty requirements upfront. A multi-zone system frequently requires upgrading your home's main electrical panel — often from 100-amp to 200-amp service — plus dedicated 208/230V double-pole breakers. Most importantly, beware of online DIY claims: almost every major manufacturer explicitly voids your multi-year parts and compressor warranty unless a licensed HVAC technician performs the final nitrogen pressure test, line evacuation, and refrigerant commissioning.
Mini Split Warehouse offers a wide selection of ductless air conditioners and split heat pumps, providing free shipping nationwide.