Contact Us

Our experienced team can help.

Eco-Friendly Ductless Heating & Cooling Solutions

Achieving the perfect temperature shouldn't require a major renovation or sky-high utility bills. At Hulse Heating & Air , we specialize in ductless mini-split technology—the most versatile, energy-efficient solution for modern home comfort.

Whether you're fixing a stubborn "hot room," finishing a basement, or transitioning your entire home to a carbon-neutral heat pump system, our certified technicians provide the precision engineering required for 2026's high-efficiency standards. Experience whisper-quiet performance and up to 30% energy savings without the hassle of traditional ductwork.

2026 Update Maximize Your Savings on Ductless Tech

While some federal tax credits ended in 2025, new State-Administered IRA Rebates are launching in 2026. Depending on your household income and system efficiency, you could qualify for up to $8,000 toward a new ductless heat pump system. Our team provides the Manual J Load Calculations required by most 2026 rebate programs to prove your system is sized for maximum efficiency.

A Manual J load calculation is a standard, in-depth calculation used by HVAC professionals to determine a home's precise heating and cooling needs (measured in BTUs or tons). Developed by the Air Conditioning Contractors of America (ACCA), it replaces old "rule-of-thumb" guessing by analyzing building materials, insulation, windows, climate, and orientation. This ensures properly sized equipment, boosting efficiency and comfort.

  • HEEHRA Rebates: Significant point-of-sale discounts for low-to-moderate income households.
  • Utility Rebates: Local providers in our area are offering up to $1,800 for high-efficiency mini-splits.
  • Zoning Savings: Lower your monthly bills by up to 30% instantly.
Contact Us About Your Rebate Eligibility

*Rebate availability varies by zip code and utility provider. Schedule a free consultation for a custom savings report.

What Makes Ductless the Modern Choice?

Choosing between a traditional central air setup and a modern ductless system is one of the most important decisions you'll make for your home's long-term comfort and value. To help you weigh your options, we've compared these two technologies across the factors that matter most to homeowners. Use the table below to see why ductless technology is becoming the preferred choice for eco-friendly home upgrades in 2026.

Performance Feature Ductless Mini-Splits Central Air (Ducted)
Energy Efficiency Maximum: Zero energy loss via ducts. Up to 30% more efficient. Standard: Significant heating/cooling loss through attic or crawlspace ducts.
Personalized Comfort Zoned: Each room has its own thermostat for precise control. Whole-Home: One sensor for the entire house leads to hot/cold spots.
Acoustics Whisper Quiet: Indoor units operate at decibels lower than a library. Audible: Significant noise from air moving through vents and metal vibration.
2026 Standards 20 – 30+ SEER2: Future-proof efficiency and low-GWP refrigerants. 14 – 18 SEER2: Standard compliance with modern regulations.
Installation Timeline Fast: Single-day installation with no major home demolition. Intrusive: Multi-day process involving bulky ductwork and drywall repairs.

How Does a Ductless System Work?

A ductless mini-split system provides high-efficiency heating and cooling without the need for bulky ductwork. It consists of two main components: an outdoor compressor/condenser and one or more indoor air-handling units. These are connected by a small conduit through a 3-inch wall opening, which houses the power cable, refrigerant lines, and a condensate drain.

Unlike central air, which forces air through leaky ducts, ductless systems deliver conditioned air directly into specific zones. Using advanced inverter technology, these systems modulate their speed to match the exact temperature demand of a room, achieving ultra-high efficiency ratings of 20 to 30+ SEER2. This zoned approach reduces energy waste by up to 30%, making it the premier choice for eco-friendly home upgrades and older home retrofits in 2026.

How ductless mini-split systems work

What is SEER2 and Why Does It Matter in 2026?

As of 2023, the Department of Energy shifted to SEER2 (Seasonal Energy Efficiency Ratio 2) to provide a more accurate reflection of how HVAC systems perform under real-world external static pressure. While older systems were rated under "perfect" laboratory conditions, SEER2 ensures that the efficiency on the box is the efficiency you actually get in your home. Our ductless systems reach up to 30+ SEER2, significantly exceeding the 2026 federal minimums and ensuring your home remains compliant with future energy regulations.

Remember, just like whole-home systems, the higher the SEER/SEER2 and HSPF/HSPF2 ratings, the more efficient they will be.

The DOE's regional breakdown by state is as follows:

  • North
    • 14.0 SEER / 13.4 SEER2
    • 8.8 HSPF / 7.5 HSPF2
  • Southeast
    • 15.0 SEER / 14.3 SEER2
    • 12.2 EER / 11.7 EER2
    • 8.8 HSPF / 7.5 HSPF2
  • Southwest
    • 15.0 SEER / 14.3 SEER2
    • 12.2 EER / 11.7 EER2
    • 8.8 HSPF / 7.5 HSPF2
DOE Regional SEER Breakdown Map

How Does HSPF/HSPF2 and EER/EER2 Factor Into Efficiency?

HSPF2 is the newest type of rating system that expands on the basic HSPF scale. Much like miles-per-gallon for a car, SEER/SEER2, EER/EER2 and HSPF/HSPF2 offer an easy way to compare efficiencies of different products – the higher the rating, the more efficient the unit. Just be sure you are comparing either SEER vs SEER or SEER2 vs SEER2 (same for EER/EER2 and HSPF/HSPF2).

EER2 and SEER2 both evaluate an air conditioner's energy efficiency, but they're concerned with two different types of temperature conditions:

  • EER2 measures an air conditioner's efficiency at the peak cooling temperature of 95°F.
  • SEER2 measures an air conditioner's efficiency throughout an entire cooling season, with temperatures ranging from 65°F to 104°F.

Protecting Your Investment: Professional Ductless Maintenance

While mini-split systems are incredibly durable, their high-efficiency components require specialized care to maintain their maximum 30+ SEER2 ratings. A neglected system can lose up to 15% efficiency in just one season.

Our Multi-Point Precision Tune-Up Includes:

  • Deep-Clean Indoor Coils: We use specialized microbial cleaners to prevent "dirty sock syndrome" and ensure pure indoor air quality.
  • Condensate Line Flush: Preventing the most common cause of indoor water leaks.
  • Inverter Diagnostics: Checking the electronic control board and sensors to ensure the system modulates correctly (saving you power).
  • Refrigerant Pressure Check: Ensuring your system is charged with the latest Low-GWP refrigerants (R-32/R-454B) for peak performance.
  • Outdoor Unit Debris Clear: Cleaning the condenser fins to prevent compressor strain during Mission Viejo's peak season.

Don't Void Your Warranty: Most major manufacturers (Mitsubishi, Daikin, Fujitsu) require documented annual professional maintenance to keep your 10-year parts warranty valid.

More About Our Annual Maintenance Plans

Our Professional Ductless Installation Process

While a DIY unit might seem tempting, a professional installation ensures your 10-year warranty remains valid and your system reaches its peak SEER2 efficiency. Here is how we transform your home comfort in a single day.

Typical Install Time: 4–8 Hours

Step 01

The Load Calculation

We don't guess—we calculate. Using Manual J protocols, we measure your insulation and square footage to ensure your mini-split is sized for 2026 climate extremes.

Step 02

Precision Placement

We mount the sleek indoor air handler and drill a single 3-inch hole for the conduit. No messy drywall repair or structural changes required for your ductless transition.

Step 03

Technical Commissioning

Our EPA-certified techs install the low-GWP refrigerant lines, perform a deep vacuum test, and sync the outdoor inverter to your home's power panel.

Step 04

Smart Sync & Handover

Final testing includes Wi-Fi setup and zoning calibration. We walk you through your new controls so you can manage your comfort from anywhere.

Other Questions About Ductless Mini-Split Systems

Modern ductless units are remarkably quiet. Indoor air handlers typically operate between 19 and 25 decibels—which is quieter than a whisper or a library. Outside, the inverter-driven compressors avoid the loud "clunk" of traditional AC units, ensuring neither you nor your neighbors are disturbed.

No. One of the primary benefits of a multi-zone ductless system is operational independence. If one air handler requires maintenance, the other units in your home will continue to function normally. This redundancy ensures you never lose climate control across your entire home simultaneously.

Yes. As your local dealer, we handle the entire permitting process with the building department to ensure your install is 100% compliant. We also provide the necessary documentation and Manual J load calculations required to claim your 2026 state and utility rebates.

We specifically install "Hyper-Heat" and extreme-climate models designed to provide 100% heating capacity even when outdoor temperatures drop to -13°F. These systems are engineered to handle local climate extremes without needing an expensive electric backup heater.

Most ductless systems require a dedicated 220V/240V circuit. During our site survey, we inspect your current panel to see if you have available space. If your panel is full, we can often install a sub-panel or recommend a smart-switch solution to ensure your new system runs safely.

Yes. This is known as a multi-zone system. A single high-capacity outdoor condenser can power up to eight indoor air handlers. This allows you to set different temperatures for bedrooms, home offices, and living areas simultaneously, providing ultimate control over your energy usage.

For optimal air quality and 2026 efficiency standards, we recommend homeowners rinse the reusable filters every 4 to 6 weeks. However, a professional deep clean should be performed annually to clean evaporator coils and condensate lines, which is often required to keep your manufacturer's warranty valid.

Still have questions? Hulse Heating & Air is available to answer any additional questions you might have about your home's comfort system choices. Give us a call today at (949) 803-5399

Ductless Outdoor Heat Pumps

MUZ-FX

M-Series outdoor model Deluxe Wall-mounted Single-zone Heat Pump

View Brochure
Model Family: MUZ-FX
Purpose: Heat and Cool
Zone Capability: Single zone
Efficiency SEER2: Up to 35 SEER2
Efficiency EER2: Up to 21.45 EER2
Efficiency HSPF2: Up to 13.3 HSPF2
Energy Star Certified: ENERGY STAR®
Refrigerant Type: R-454B
Sound Level: As low as 52 dB(A)
Compressor: Inverter Compressor
Factory Warranty Parts: 10-Year Parts Limited Warranty; 12-year limited warranty when installed by Diamond Contractor
Factory Warranty Compressor: 10 year compressor warranty; 12-year limited warranty when installed by Diamond Contractor
Manufacturer's Stated Benefits:
  • 100% heating performance down to 5° F with guaranteed heating down to -13° F.
MUZ-GX

M-Series outdoor model Premier Wall-mounted Single-zone Heat Pump

View Brochure
Model Family: MUZ-GX
Purpose: Heat and Cool
Zone Capability: Single Zone
Efficiency SEER2: Up to 28.4 SEER2
Efficiency EER2: Up to 15.4 EER2
Efficiency HSPF2: Up to 11 HSPF2
Energy Star Certified: ENERGY STAR
Refrigerant Type: R-454B
Sound Level: As low as 50 dB(A)
Compressor: Inverter Driven
Factory Warranty Parts: 10-year limited warranty; 12-year limited warranty When Installed by Diamond Contractor
Factory Warranty Compressor: 10-year limited warranty; 12-year limited warranty When installed by Diamond Contractor
Manufacturer's Stated Benefits:
  • Blue Fin anti-corrosion coating to the heat exchanger's aluminum fins for increased coil protection and longer life.
SUZ-AA

P-Series outdoor model Single-zone Universal Heat Pump

View Brochure
Model Family: SUZ-AA
Purpose: Heat and Cool
Zone Capability: Single Zone
Efficiency SEER2: Up to 21.7 SEER2
Efficiency EER2: Up to 12.8 EER2
Efficiency HSPF2: Up to 12.9 HSPF2
Energy Star Certified: ENERGY STAR
Refrigerant Type: R-454B
Sound Level: As low as 55 dB(A)
Compressor: DC INVERTER-driven Twin Rotary
Factory Warranty Parts: 10 year Limited Warranty to original owner if properly registered: 12-Year if installed by Diamond Contractor
Factory Warranty Compressor: 10-year compressor limited warranty to the original purchasing owner upon timely registration;12-Year if installed by Diamond Contractor
Manufacturer's Stated Benefits:
  • Hyperheating heat pump available on some models.
  • This model has a cooling mode, allowing you to achieve precise temperature control during warm periods.
MXZ

Multi-zone Heat Pump Outdoor Unit

View Brochure
Model Family: MXZ
Purpose: Heat/Cool
Zone Capability: Multi-Zone
Efficiency SEER2: Up to 20 SEER2
Efficiency EER2: Up to 13 EER2
Efficiency HSPF2: Up to 10 HSPF2
Energy Star Certified: Yes
Refrigerant Type: R-454B
Sound Level: As low as 56 dB(A)
Compressor: DC INVERTER-driven Twin Rotary
Factory Warranty Parts: 10 year Limited Warranty to original owner if properly registered; 12-Year is installed by Diamond Contractor
Factory Warranty Compressor: 10-year compressor limited warranty to the original purchasing owner upon timely registration; 12-Year is installed by Diamond Contractor
Manufacturer's Stated Benefits:
  • This model has a heating mode to ensure optimal comfort when your home isn't warm enough.
  • This model has a cooling mode, allowing you to achieve precise temperature control during warm periods.
  • Some units offer Hyper-Heating INVERTER™ technology
  • Up to 8 zone heating and cooling

Ductless High Wall Indoor Heat Pumps

MSZ-FX

FX Deluxe Wall-mounted Indoor Unit

View Brochure
Model Family: MSZ-FX
Purpose: Heat and Cool
Zone Capability: Single zone
Efficiency SEER2: Dependent on outdoor Unit
Efficiency EER2: Dependent on outdoor Unit
Efficiency HSPF2: Dependent on outdoor Unit
Matching Outdoor Unit: Single-Zone: MUZ-FX
Matching Outdoor Unit: Multi-Zone:
Energy Star Certified: ENERGY STAR®
Refrigerant Type: R-454B
Number of Fan Speeds: Multiple fan speed options: Quiet, Low, Medium, High, Super-high, Auto
Sound Level: As low as 27 dB(A)
Wireless Remote: Yes
Factory Warranty Parts: 10-year limited warranty: 12-year limited warranty if installed by Diamond Contractor
Manufacturer's Stated Benefits:
  • Triple-action Filtration: Nano Platinum Filter, Deodorizing Filter, & Electrostatic Anti-Allergy Enzyme Filter
  • Hot-Start Technology: no cold air rush at equipment startup or when restarting after Defrost Cycle
  • Absence Detection for energy-saving mode
MSZ-GX

GX Premier Wall-mounted Indoor Unit

View Brochure
Model Family: MSZ-GX
Purpose: Heat and Cool
Zone Capability: Single
Efficiency SEER2: Dependent on outdoor Unit
Efficiency EER2: Dependent on outdoor Unit
Efficiency HSPF2: Dependent on outdoor Unit
Matching Outdoor Unit: Single-Zone: MUZ-GX
Matching Outdoor Unit: Multi-Zone:
Energy Star Certified: ENERGY STAR®
Refrigerant Type: R-454B
Number of Fan Speeds:
Sound Level: As low as 34 dB(A)
Wireless Remote: Yes
Factory Warranty Parts: 10-year parts and compressor warranty with registration; 12-year limited warranty when installed by Diamond Contractor
Manufacturer's Stated Benefits:
  • Powerful Mode for rapidly cooling or heating a space to the desired temperature
  • Econo Cool is feature that temporarily adjusts the airflow to maintain comfort while using less energy.
  • An indoor unit with this capability can move air throughout the room like an oscillating fan.
MSZ-HX

Wall-mounted Indoor Unit

View Brochure
Model Family: MSZ-HX
Purpose: Heat and Cool
Zone Capability: Single Zone
Efficiency SEER2: Dependent on outdoor Unit
Efficiency EER2: Dependent on outdoor Unit
Efficiency HSPF2: Dependent on outdoor Unit
Matching Outdoor Unit: Single-Zone: MUZ-HX
Matching Outdoor Unit: Multi-Zone:
Energy Star Certified: ENERGY STAR
Refrigerant Type: R-454B
Number of Fan Speeds: 4 Fan Speeds
Sound Level: As low as 33 dB(A)
Wireless Remote: Yes
Factory Warranty Parts: 10-year limited warranty: 12-Years if installed by Diamond Installer
Manufacturer's Stated Benefits:
  • Econo Cool is feature that temporarily adjusts the airflow to maintain comfort while using less energy.
  • An indoor unit with this capability can move air throughout the room like an oscillating fan.
MSZ-WX

Wall-mounted Indoor Unit

View Brochure
Model Family: MSZ-WX
Purpose: Heat and Cool
Zone Capability: Single zone
Efficiency SEER2: Dependent on outdoor Unit
Efficiency EER2: Dependent on outdoor Unit
Efficiency HSPF2: Dependent on outdoor Unit
Matching Outdoor Unit: Single-Zone: MUZ-WX
Matching Outdoor Unit: Multi-Zone:
Energy Star Certified: No
Refrigerant Type: R-454B
Number of Fan Speeds: 4 Fan Speeds
Sound Level: As low as 33 dB(A)
Wireless Remote: Yes
Factory Warranty Parts: 10-year limited warranty;12-year limited warranty when installed by a Diamond Contractor
Manufacturer's Stated Benefits:
  • Econo Cool is feature that temporarily adjusts the airflow to maintain comfort while using less energy.
  • An indoor unit with this capability can move air throughout the room like an oscillating fan.

Ductless High Wall Indoor Air Conditioners

MSY-GX

Cooling Only Wall-mounted Indoor Unit

View Brochure
Model Family: MSY-GX
Purpose: Cool Only
Zone Capability: Single Zone
Efficiency SEER2: Dependent on outdoor Unit
Efficiency EER2: Dependent on outdoor Unit
Matching Outdoor Unit: Single-Zone: MUY-GX
Matching Outdoor Unit: Multi-Zone:
Energy Star Certified: ENERGY STAR
Refrigerant Type: R-454B
Number of Fan Speeds: N/A
Sound Level: As low as 34 dB(A)
Wireless Remote: Yes
Factory Warranty Parts: 10-year limited warranty; 12-year limited warranty Diamond Installer
Manufacturer's Stated Benefits:
  • Econo Cool is feature that temporarily adjusts the airflow to maintain comfort while using less energy
  • An indoor unit with this capability can move air throughout the room like an oscillating fan.
  • Powerful Mode temporarily drops or raises the set temperature in order to quickly bring your room to your desired temperature.
PKA

Wall Mounted Air Conditioner PKA Indoor Unit

View Brochure
Model Family: PKA
Purpose: Cool only
Zone Capability: Single zone
Efficiency SEER2: Dependent on outdoor Unit
Efficiency EER2: Dependent on outdoor Unit
Matching Outdoor Unit: Single-Zone: Puy-AH-AK
Matching Outdoor Unit: Multi-Zone: N/A
Energy Star Certified: ENERGY STAR®
Refrigerant Type: R-454B
Number of Fan Speeds: 5 Fan Speeds
Sound Level: As low as 19 DBA
Wireless Remote: Yes
Factory Warranty Parts: 10-year parts limited warranty upon timely registration: 12-year if installed by Diamond Contractor
Manufacturer's Stated Benefits:
  • This model has a cooling mode, allowing you to achieve precise temperature control during warm periods.
  • This model has multi-stage allergen filtration, removing particulates and contaminants from the air.

Ductless Outdoor Air Conditioners

MUY-GX

M-Series outdoor model-Cooling Only

View Brochure
Model Family: MUY-GX
Purpose: Cooling Only
Efficiency SEER2: Up to 28.4 SEER2
Efficiency EER2: Up to 15.4 EER2
Zone Capability: Single Zone
Energy Star Certified: ENERGY STAR
Refrigerant Type: R-454B
Sound Level: As low as 55 dB(A)
Compressor: Inverter Driven
Factory Warranty Parts: 10-year limited warranty;12-year limited warranty when Installed by Diamond Contractor
Factory Warranty Compressor: 10-year limited warranty;12-year limited warranty when Installed by Diamond Contractor
Manufacturer's Stated Benefits:
  • Blue Fin coating applied to heat exchanger for increased protection and longer life.
PUY

Single-zone Universal Air Conditioner Outdoor Model

View Brochure
Model Family: PUY
Purpose: Cooling
Efficiency SEER2: Up to 21.1 SEER2
Efficiency EER2: Up to 14.8 EER2
Zone Capability: Single zone
Energy Star Certified: ENERGY STAR
Refrigerant Type: R-454B
Sound Level: As low as 52 dB(A)
Compressor: Inverter Driven Compressor
Factory Warranty Parts: 10 year Limited Warranty to original owner if properly registered; 12-year limited warranty if installed by Diamond Contractor
Factory Warranty Compressor: 10 year Limited Warranty to original owner if properly registered; 12-year limited warranty if installed by Diamond Contractor
Manufacturer's Stated Benefits:

    American Standard Alternate Indoor Ductless Units

    NAXCKS

    NAXCKS Indoor Ductless Ceiling Cassette Heat Pump

    View Brochure
    Model Family: NAXCKS
    Purpose: Heat & Cool
    Zone Capability: Single & Multi Zone
    Efficiency SEER2: Up to 16 SEER2
    Efficiency EER2: N/A
    Efficiency HSPF2: Up to 9.6 HSPF2
    Matching Outdoor Unit: Single-Zone: NAXWST, NAXWPH,NAXWMT
    Matching Outdoor Unit: Multi-Zone: NAXWST, NAXWPH,NAXWMT
    Energy Star Certified: No
    Refrigerant Type: R-410A
    Number of Fan Speeds: N/A
    Sound Level: Quiet operation
    Wireless Remote: Yes
    Factory Warranty Parts: 10-year limited warranty on compressor and functional parts.
    Manufacturer's Stated Benefits:
    • INVERTER-driven compressor
    • Provides cooling and heating in a wide range of capacities
    • Ventilation air knockouts
    • Built-in condensate lift mechanism
    • Multiple airflow adjustments
    • Available capacities in kBtu/h: 09, 12, 15
    PEAD

    PEAD Indoor Horizontal-Ducted Heat Pump

    View Brochure
    Model Family: PEAD
    Purpose: Heat & Cool
    Zone Capability: Single & Multi Zone
    Efficiency SEER2: up to 21.1 SEER
    Efficiency EER2: N/A
    Efficiency HSPF2: up to 13.0 HSPF
    Matching Outdoor Unit: Single-Zone: NAXWST, NAXWPH,NAXWMT
    Matching Outdoor Unit: Multi-Zone: NAXMMX
    Energy Star Certified: No
    Refrigerant Type: R-410A
    Number of Fan Speeds: N/A
    Sound Level: Quiet operation
    Wireless Remote: Yes
    Factory Warranty Parts: 5-year limited warranty on compressor and functional parts.
    Manufacturer's Stated Benefits:
    • INVERTER-driven compressor
    • Built-in condensate lift mechanism (up to 27-9/16
    • Static capability up to 0.60 in. wg
    • Option filter box with MERV-13 filters
    • Interlock with Lossnay
    • 2-stages of supplemental heat control
    NAXFKS

    NAXFKS Indoor Ductless Floor-Mounted Heat Pump

    View Brochure
    Model Family: NAXFKS
    Purpose: Heat & Cool
    Zone Capability: Single & Multi Zone
    Efficiency SEER2: Up to 28.2 SEER2
    Efficiency EER2: N/A
    Efficiency HSPF2: Up to 13 HSPF2
    Matching Outdoor Unit: Single-Zone: NAXWST, NAXWPH,NAXWMT
    Matching Outdoor Unit: Multi-Zone: NAXWST, NAXWPH,NAXWMT
    Energy Star Certified: Energy Star Rated
    Refrigerant Type: R-410A
    Number of Fan Speeds: N/A
    Sound Level: Quiet operation
    Wireless Remote: Yes
    Factory Warranty Parts: 10-year limited warranty on compressor and functional parts.
    Manufacturer's Stated Benefits:
    • Rapid heating
    • Operates with 25% less power than competing models
    • Recessing is an option
    • Available capacities in kBtu/h: 09, 12, 15, 18