How energy-efficient is the MRCOOL DIY Easy Pro 5th Gen 9,000 BTU Ductless Mini Split Heat Pump?

Its efficiency rating is SEER2 20 for cooling and HSPF2 9.2 for heating, and it is ENERGY STAR certified.

Do I need a professional to install the MRCOOL DIY Easy Pro 5th Gen 9,000 BTU Ductless Mini Split Heat Pump?

Partly. MRCOOL sells it as a do-it-yourself kit: the line set comes pre-charged with quick-connect fittings, so there is no vacuum pump or refrigerant charging on site, and you can mount the units and route the lines yourself. But under EPA Section 608 connecting refrigerant lines is certified-technician work, so plan on a certified technician for that connection. Usually needs permission.

Single splitENERGY STAR Heats too

MRCOOL · Model EZPRO-09-HP-11516D-O

DIY Easy Pro 5th Gen 9,000 BTU Ductless Mini Split Heat Pump

Name: MRCOOL DIY Easy Pro 5th Gen 9,000 BTU Ductless Mini Split Heat Pump
Brand: MRCOOL
Price: 1388 USD
Availability: InStock

A wall-mounted split air conditioner rated at 9,000 BTU for rooms up to 350 sq ft. It heats in winter too.

$1,388

Live price at Sylvane

Price checked Oct 27, 2026

Buy at Sylvane In stock

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Price history at Sylvane

Lowest since Jul 25, 2026:$1,388on Aug 12, 2026

Currently the lowest price we have tracked at Sylvane since Jul 25, 2026down from $1,408 on Aug 11, 2026

Based on 80 prices we have recorded since Jul 25, 2026, not a market average.

Will it cool your room?

Room size 700 sq ft ≈ 65 m²

Undersized for 700 sq ft

This is undersized for your 700 sq ft room. It would run flat out and struggle to keep up.

Running cost

Mini-splits are rated on SEER2, a seasonal scale, not the ENERGY STAR annual-kWh figure this dollar estimate is built from, so there is no comparable figure to show here. A blank is missing data, not a worse result: a mini-split is often the more efficient choice.

Every mini-split side by side

At a glance

Best for buyers who want a high-efficiency model.

Cooling

9,000 BTU

Size

Slim

Noise

38 dB

Moderate

Install: DIY kit, certified refrigerant hookupPermission: Usually needs permission

Performance

Cooling capacity: 9,000 BTU · 2.6 kW
Power while cooling: About 783 W, about $0.14 an hour
Heating capacity: Yes
Heats down to: 5°F outdoors
Heat at 5°F (maximum): Up to 6,200 BTU at 5°F (62% of its rated 47°F output)ENERGY STAR record
Heat at 17°F (rated): 7,000 BTU
Efficiency at 5°F: COP 2.07 (a space heater is 1.0)
ENERGY STAR cold climate: No
Room coverage: up to 350 sq ft
Energy Star: Yes
SEER2: 20
HSPF2 (heating): 9.2
EER2: 11.5
Annual energy (cooling): Not published

Noise, size & features

Model number: EZPRO-09-HP-11516D-O
Indoor noise: 38 dB(A)about as loud as a quiet library
Outdoor noise: Not published
Indoor unit: 28.7 x 11.5 x 7.87 in
Outdoor unit: 28.35 x 19.49 x 10.63 in (W x H x D)
Refrigerant: R-454B
Wi-Fi / app: Not published
Outdoor unit needed: Yes
Power supply: 115 V
Warranty: 1-Year Limited Parts Warranty, 2-Year Limited Compressor Warranty

SEER2, EER2, heating limit, supply voltage, refrigerant, outdoor unit size and warranty are from Sylvane's published specifications for this exact configuration, checked Oct 2, 2026.

Power while cooling: From its rated cooling capacity divided by its EER2 rating, which is the draw at its rating point (95°F outside). An hour's cost is at that draw and the US average electricity price of 18.44¢/kWh (U.S. Energy Information Administration, Electric Power Monthly Table 5.6.A (residential average, May 2026)). The compressor cycles once the room is cool, so most hours cost less.

What is good

At 38 dB(A) it is quieter than 49 of the 58 other mini-splits we list that publish a noise figure.
Uses R-454B (GWP 466), the low-GWP class new US residential equipment moved to.

What to watch

At $1,388 it costs more than 13 of the 16 other 8,000-9,000 BTU mini-splits we list with a live price.

Installation & the rules that apply

This is a single split. This is where regulation bites. Under EPA Section 608 the refrigerant circuit may only be opened by a certified technician, and the EPA is explicit that this includes connecting or disconnecting the pre-charged line sets sold with "DIY" mini-split kits. No federal law stops you doing the mounting, bracketing and line routing yourself, but handling the refrigerant without certification voids the warranty and is a violation. Most US jurisdictions also require permits for a new outdoor unit: typically mechanical or building for the wall penetration and mount, plus electrical for the dedicated 240 V circuit and disconnect. An HOA nearly always has to approve exterior equipment in advance, and local noise ordinances can cap how loud the condenser may be at the property line. This varies by city and county, so confirm with your building department before buying hardware.

Installation

DIY kit, certified refrigerant hookup

Refrigerant

R-454B

GeneralRenters: get written landlord consent firstReviewed June 2026Often blocks install

United StatesUS: EPA Section 608 certified technician for refrigerantReviewed June 2026Often blocks install

ArizonaArizona: municipal mechanical permit for AC replacementReviewed June 2026Permit required

CaliforniaCalifornia: Title 24 permit and HERS verificationReviewed June 2026Permit required

FloridaFlorida: hurricane wind-load anchoring of outdoor unitsReviewed June 2026Permit required

See full rules by region

Common questions about the MRCOOL DIY Easy Pro 5th Gen 9,000 BTU Ductless Mini Split Heat Pump

How loud is the MRCOOL DIY Easy Pro 5th Gen 9,000 BTU Ductless Mini Split Heat Pump?: 38 dB(A) indoors, about as loud as a quiet library.
How energy-efficient is the MRCOOL DIY Easy Pro 5th Gen 9,000 BTU Ductless Mini Split Heat Pump?: Its efficiency rating is SEER2 20 for cooling and HSPF2 9.2 for heating, and it is ENERGY STAR certified.
How many watts does the MRCOOL DIY Easy Pro 5th Gen 9,000 BTU Ductless Mini Split Heat Pump use?: About 783 watts while cooling at full power: its rated 9,000 BTU divided by its EER2 of 11.5, the draw at its rating point (95°F outside). At the US average electricity price that is about $0.14 an hour; once the room is cool the compressor cycles, so most hours cost less.
What size room does the MRCOOL DIY Easy Pro 5th Gen 9,000 BTU Ductless Mini Split Heat Pump cool?: It is rated to cool a room up to 350 sq ft (9,000 BTU · 2.6 kW).
Do I need a professional to install the MRCOOL DIY Easy Pro 5th Gen 9,000 BTU Ductless Mini Split Heat Pump?: Partly. MRCOOL sells it as a do-it-yourself kit: the line set comes pre-charged with quick-connect fittings, so there is no vacuum pump or refrigerant charging on site, and you can mount the units and route the lines yourself. But under EPA Section 608 connecting refrigerant lines is certified-technician work, so plan on a certified technician for that connection. Usually needs permission.
Does the MRCOOL DIY Easy Pro 5th Gen 9,000 BTU Ductless Mini Split Heat Pump heat as well as cool?: Yes. It is a heat pump that also heats.
How cold can it get outside before the MRCOOL DIY Easy Pro 5th Gen 9,000 BTU Ductless Mini Split Heat Pump stops heating?: Its retailer's specification for this exact configuration rates it to keep heating down to 5°F outdoors. That is its operating limit, not its full output: a heat pump delivers less heat as it gets colder, so size it for your coldest days.
Does the MRCOOL DIY Easy Pro 5th Gen 9,000 BTU Ductless Mini Split Heat Pump work in cold weather?: Yes. The ENERGY STAR certification of its outdoor and indoor units lists up to 6,200 BTU of heat when it is 5°F outside, its maximum output there, 62% of its rated 10,000 BTU at 47°F. Its rated output at 17°F is 7,000 BTU. At 5°F it makes 2.07 times as much heat as a space heater from the same electricity (a COP of 2.07). It does not carry ENERGY STAR's cold-climate designation.