Go Back

18,000 BTU Cooling + Heating - Wall Mounted Ductless Mini Split Air Conditioner Heat Pump – 21.7 SEER2 Energy-Efficient, Voltage 230V

COMFORTSTAR

18,000 BTU Cooling + Heating - Wall Mounted Ductless Mini Split Air Conditioner Heat Pump – 21.7 SEER2 Energy-Efficient, Voltage 230V

Model No. CHF3-18CD

SHIPS IN: 24 - 48 HOURS

Works in outdoor temperatures

as low as -22°F.

Specifications:

Type: Wall Mount

Operating Mode: Heating and Cooling

Refrigerant Type: R454B

Size (W x D x H): Indoor - 42.60"x9.21"x13.27"
Outdoor - 35.04"x13.46"x26.50"

Outdoor Ambient Temperature: -22°F

SEER2: 21.7

Average Coverage Area: Up to 600ft²

$1,803.42 USD

~~$2,140.00 USD~~ $1,803.42 USD

Shipping calculated at checkout.

Product variants

Quantity

Product Catalog Owners & Installation Manual Service Manual Indoor Spare Parts Outdoor Spare Parts Submittal AHRI Certificate Energy Guide

The ComfortStar CHF3-18CD is an 18,000 BTU ductless mini split heat pump that heats and cools larger spaces at a high 21.7 SEER2 — ENERGY STAR® certified for serious energy savings. Running on 230V, this single-zone wall-mounted system covers rooms up to roughly 600–800 sq ft, including light commercial spaces, and delivers exceptional cold-climate heating down to -22°F. Inverter operation keeps comfort quiet and steady year-round.

Key specifications

Capacity: 18,000 BTU cooling + heating (heat pump)
Efficiency: 21.7 SEER2 — ENERGY STAR® certified
Voltage: 230V
Configuration: Single-zone, wall-mounted
Coverage: Up to ~600–800 sq ft (light commercial capable)
Low-temp heating: Operates to -22°F
Model: CHF3-18CD

Backed by free shipping and genuine OEM parts support. High-efficiency systems like this may qualify for federal or local energy rebates.

❄️ Works Even in Extreme Cold: Stay warm even when it’s freezing outside — this unit heats and cools in temps as low as -22°F!
🔘 Manual ON/OFF Switch: No remote? No problem. Just press the power button on the indoor unit to turn it ON or OFF.
📊 Smart Display Features - The display shows: ✔️ Error codes if something's wrong ✔️ A clean filter alert ✔️ Leak detection alerts ✔️ When it’s in auto defrost mode
🧠 Self-Diagnosis = Protection: If it senses something unusual, the unit will pause to protect itself and display an error code.
🚨 Bypass Mode Keeps It Running: If a small part (like a sensor) has an issue, it keeps working so you stay comfortable.
💧 Flexible Drain Options: You can install the drain hose on the left or right side for easier setup.
🌬️ 3D Airflow Coverage: Air flows in three directions, reaching every corner of the room.
🔇 Quiet Mode: Turn on mute to silence beeps from the remote control.
📍 “Follow Me” Temperature Sensor: The remote senses the room temperature where you are, not just at the indoor unit — for more accurate comfort.
🕹️ Easy-to-Use Controls: - Wired control available (optional) - WiFi control with built-in Cool Link (optional)

📦 What’s Included in Your Complete Mini-Split Bundle:
1x Indoor High-Wall Air Handler – Sleek, modern design for quiet, efficient comfort.
1x Outdoor Condensing Unit – Durable and built for powerful performance.
📲 Remote Control – Convenient temperature control from anywhere in the room.
🎯 1 Roll of PVC Wrap (No Adhesive) – Cleanly conceals and protects your refrigerant lines.
🧱 8 oz. Sealing Clay – Creates an airtight, weather-resistant seal around the line set.
🛡️ 1 Wall Bushing Cover – Neatly finishes the wall penetration for a clean, professional look.
🦶 (4) Heavy-Duty Mounting Pads – Secures your outdoor unit with stability and vibration reduction.
✅ Everything you need for a smooth install—right in the box.

Products Related to this Item

Refrigerants, fuel gases, electricity and many more hazards are present when working on HVAC system installations and repairs. It is solely up to the individual viewing our products to determine if he/she has the proper safety training and extensive experience required to work on HVAC systems. Our recommendation is that you have a professional install new and repair HVAC Systems.