Olympus ENERGY STAR 18,000 BTU 1.5 Ton Ductless Mini Split Air Conditioner and Heat Pump Condenser - 230V/60Hz
SKU O-ES-18-HP-230B
With Incentives
Save up to $1,04023.5 SEER2 meets CEE Tier 2 (≥16). Find your state's rebate
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Description
Olympus ENERGY STAR 18,000 BTU 1.5 Ton Ductless Mini Split Air Conditioner and Heat Pump Condenser - 230V/60Hz
What's in This System
The actual units this bundle ships with — pictured individually, priced as one system.
Outdoor Condenser — included
Olympus ENERGY STAR 18,000 BTU 1.5 Ton Ductless Mini Split Heat Pump Condenser - 230V/60Hz
Sold separately for $1,155
View this unit's full specsIndoor Air Handler — included
Olympus 18,000 BTU 1.5 Ton Ductless Mini-Split Wall Mounted Air Handler - 230V/60Hz
Sold separately for $578
View this unit's full specsWireless Remote
Handheld remote control
Heads up: a line set is not included with this system — add a compatible one from the add-ons above so it arrives install-ready.
Key Specifications
23.5
SEER2 Rating
18000BTU
Cooling Capacity
208-230V
Voltage
43dBA
Noise Level
1
Zone Capacity
Olympus ENERGY STAR 18,000 BTU 1.5 Ton Ductless Mini Split Air Conditioner and Heat Pump Condenser - 230V/60Hz — Model Details
What this specific model is sized for, how it installs, how it performs, and what it costs to run.
Room & Space Coverage — 18,000 BTU
The Olympus ENERGY STAR 18,000 BTU 1.5 Ton Ductless Mini Split Air Conditioner and Heat Pump Condenser - 230V/60Hz delivers 18,000 BTU of cooling and heating capacity, sized for spaces up to 900 sq ft in standard 8-ft ceiling rooms with average insulation. At this capacity the unit handles medium primary rooms, master suites with attached bath, converted garages, and workshops. If your space includes a sunny west-facing wall or a finished bonus room above it, lean toward the upper end of the coverage range.
Efficiency & Operating Cost
This unit is rated at 23.5 SEER2 and 12.5 EER2 at full load. SEER2 measures seasonal cooling efficiency — higher is better — and 23.5 puts this in the premium efficiency tier. For heating performance it carries a 10.8 HSPF2 rating, which translates to roughly 300–350% heating efficiency versus resistance electric — one kilowatt-hour of electricity moves three kWh of heat into the space at mild outdoor temperatures. Running the unit 8 hours a day at full load draws roughly 184 kWh/month — about $29/month at the US average $0.16/kWh residential rate. Real-world draw is usually 30–50% lower because inverter compressors modulate down most of the time. ENERGY STAR certification makes this SKU eligible for federal tax credits (25C in 2026, up to 30% / $2,000 for qualifying heat pumps) and most state/utility rebate programs — check your state page for specific amounts.
Power & Electrical Requirements
Power requirement: 208-230V 1-phase 60Hz (standard US residential 240V service). Minimum circuit ampacity is 3A with a maximum overcurrent protection of 30A. Wire the outdoor unit with 10 AWG copper on a dedicated 30A double-pole breaker (or single-pole at 120V), with a disconnect within sight of the condenser per NEC 440.14.
Install Difficulty — Professional Install
This is a professionally-installed condenser that requires a licensed HVAC technician with EPA 608 certification. The tech will pull a vacuum on the line set to 500 microns, pressure-test with nitrogen, release the factory charge, and commission per MrCool's startup procedure. Budget 1 full day for install on a single-zone system. Ships with R-410A refrigerant. R-410A is a mature, widely-serviced refrigerant; service technicians and parts are available at any HVAC supply house.
Sound Level & Comfort Features
Operating sound level ranges from 32.5 dB(A) on low to 46.5 dB(A) on high — the low end is whisper-quiet, below a normal conversation (60 dB) and comparable to a library reading room. Sleep mode automatically raises cooling setpoint 1–2°F over 7 hours to match the body's natural temperature drop and cut overnight energy use. Quiet mode caps fan speed and compressor rpm for an extra 2–3 dB drop in sound output.
Warranty & Certifications
When you register your unit within 60 days of purchase you get 5-year on parts and 7-year on the compressor through MrCool's registered warranty program. AHRI certified — required for most utility rebate and tax credit programs.
What's in the Box & Compatibility
Ships as a Mini-Split with remote control included.
Product Details
With an updated SEER of up to 22.6, the MrCool® Olympus Energy Star Series ductless mini-split heat pump and air handler system is an Energy Star certified heat and air solution. This system is designed to be installed by an HVAC professional, and will prove to be both effective and affordable. It is packed with features, modes, and functions, such as timer mode, auto swing, sleep mode, and auto restart. Combining efficiency and technology, this system features a WiFi control module that you can count on to provide easier setup, better functionality, and the ability to control the system with the SmartHVAC app, your Amazon Alexa, or Google Assistant.
Specifications
| Cooling Capacity | 18,000 BTU |
| Heating Capacity | 19,000 BTU |
| SEER2 Rating | 23.5 |
| HSPF2 | 10.8 |
| Voltage | 208-230 V |
| Refrigerant | R-410A |
| Noise Level | 43 dBA |
| Zone Capacity | 1 zones |
| SEER Rating | Up To 22.6 |
| EER2 | 12.5 |
| Phase | 1 |
| Refrigerant Type | R-410A |
| Refrigerant Charge | 56.44 oz |
| Liquid Line Size | 1/4 |
| Suction Line Size | 1/2 |
Features
- Installation by a licensed professional required where applicable
- 7-Year Compressor, 5-Year Parts and 1-Year Remote warranty when registered and when installed by a licensed professional
- R-410A environmentally friendly refrigerant
- Energy Star certified
Frequently Asked Questions
Everything you need to know about this product
What size room will the Olympus ENERGY STAR 18,000 BTU 1.5 Ton Ductless Mini Split Air Conditioner and Heat Pump Condenser - 230V/60Hz cool?
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Is this unit eligible for the federal 25C tax credit?
What electrical circuit do I need for installation?
What warranty do I get?
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What is the warranty on the Olympus ENERGY STAR 18,000 BTU 1.5 Ton Ductless Mini Split Air Conditioner and Heat Pump Condenser - 230V/60Hz?
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What size room does 18,000 BTU cover?
What is the efficiency rating?
Do you offer returns?
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Ships Nationwide — Shop by State
We deliver the Olympus ENERGY STAR 18,000 BTU 1.5 Ton Ductless Mini Split Air Conditioner and Heat Pump Condenser - 230V/60Hz to all 50 states via FedEx, UPS, and truck freight. Each state page lists local rebate programs and utility incentives.