MRCOOL® leads the market in DIY-ready mini splits and inverter heat pump technology. Their Quick Connect® pre-charged line sets allow for fast installation without special tools, while SmartHVAC® app control, quiet operation, and strong warranties make ownership simple and reliable.

Start with your room’s square footage, then factor in ceiling height, insulation, windows, and your local climate. Use our online Sizing Guide or contact us for tailored recommendations.

Single-Zone systems are designed to heat and cool one room with one air handler. Multi-Zone systems connect multiple indoor air handlers to one condenser, giving each room independent temperature control.

Yes. Many models offer efficient heating even in sub-zero temperatures and reliable cooling during intense summer heat. Check your model’s operating range in the specifications section.

Yes. MRCOOL® DIY® Multi-Zone systems allow you to connect several indoor air handlers to one outdoor condenser. Choose the right handler size for each room to ensure optimal comfort.

Most MRCOOL® models integrate with the SmartHVAC® app and support popular smart home assistants. Check each product’s “Features” section for compatibility.

Typical accessories include the correct line set lengths, a wall sleeve, drain line extensions, electrical disconnect box, and mounting hardware (wall bracket or pad). Product pages list what’s included and what’s recommended.

 Yes. Mini splits work well for spot conditioning in these spaces. Poor insulation may require a higher BTU rating to maintain comfort.

Indoor air handlers typically operate in the low-30s decibel range. Outdoor inverter condensers modulate their speed and run significantly quieter than traditional systems.

Inverter technology delivers high SEER2/HSPF2 ratings, resulting in lower utility bills compared to fixed-speed systems. Check each model’s specifications for exact ratings.

No. Many are true DIY (MRCOOL® DIY® series), but some—like Universal, Central Ducted, and Olympus—require professional installation. Each product page specifies whether the system is DIY or Pro.

The MRCOOL® DIY® series comes with pre-charged Quick Connect® line sets that require no vacuum pump or gauges. Most homeowners complete these installations in a few hours.

MRCOOL® Universal, Central Ducted, and Olympus systems generally require professional installation for refrigerant line connections, electrical work, and commissioning to maintain warranty coverage.

Basic tools: drill, level, stud finder, hole saw for wall sleeve, and a helper for lifting. No refrigerant tools are needed for DIY® systems.

Single-zone DIY systems typically take a few hours. First-time installers may need a day. Multi-zone or non-DIY systems take longer and should be scheduled with a licensed HVAC professional.

Yes. Each unit ships with a printed manual, and we host detailed installation guides and video tutorials on our website.

We don’t provide installation directly, but many customers find licensed professionals through platforms like Angi or HomeAdvisor. We provide the necessary documentation to support installers.

For systems that require professional installation, hiring a licensed HVAC technician is typically required to maintain MRCOOL®’s warranty.

You can contact us via our support page. For technical matters, we coordinate with MRCOOL®’s technical support to resolve issues.

Yes. We assist with troubleshooting and liaise with MRCOOL® support where necessary for warranty or technical concerns.

We ship within the continental United States only. We do not currently ship to Alaska, Hawaii, or U.S. territories.

Most products are shipped directly from MRCOOL®’s U.S. warehouses. Some accessories may ship from our partner facilities.

Orders typically process within 1–3 business days and arrive within 5–10 business days depending on your location. Freight carriers will call to schedule delivery.

Shipping is free on all orders within the continental U.S.

You’ll receive tracking information by email once your order ships. Freight tracking may take 24–48 hours to update.

For freight deliveries, an adult must be present to inspect and sign for the shipment. Smaller parcel deliveries may not require a signature.

Inspect the shipment before signing. Note any packaging damage on the delivery receipt. If the unit is damaged, refuse delivery and contact us immediately.

Note visible damage at delivery or refuse the shipment. For concealed damage found after delivery, contact us within 48 hours with photos.

Once processing begins, changes can’t be guaranteed. Contact us immediately—if it hasn’t shipped, we’ll try to update the address.

Due to the size and freight nature of HVAC products, we don’t currently offer expedited shipping.

Returns are accepted within 30 days for new, unused items in original packaging. Return shipping costs may apply unless the item is defective or damaged.

Contact us with your order number and reason for return. We’ll issue a return authorization and instructions.

Depending on the item and warehouse policies, restocking fees may apply. We’ll disclose these during the authorization process.

Most systems include 5-year parts and 7-year compressor warranties, with optional Lifetime Compressor coverage on eligible models upon proper registration.

Follow the instructions in your manual to register your product using the model and serial numbers. Keep your proof of purchase and installer details if applicable.

Claims are processed through MRCOOL®. We’ll help gather information and connect you with MRCOOL® support to handle the claim.

Manufacturing defects are covered. Damage due to improper installation, misuse, or lack of maintenance is typically not covered.

Document the issue and contact us immediately. We’ll coordinate with MRCOOL® to resolve it according to their policy.

Once the return is received and inspected, refunds are usually processed within 5–10 business days, depending on your bank.

We accept major credit/debit cards and popular digital wallets. Options such as PayPal and Shop Pay are available at checkout.

Not at the moment. We’re exploring trusted financing options for future upgrades — but currently, all purchases are paid in full at checkout.

Sales tax is calculated at checkout based on your shipping address.

Occasionally. Enter valid promo codes at checkout. Many products follow MRCOOL®’s MAP pricing guidelines.

Typically, only one promotion per order applies. Bundled systems or discounted items may not be eligible for additional codes.

Yes. Contact us with your project details for trade pricing or bulk orders.

Use our Sizing Guide or message us with room size, insulation, climate, and installation preferences. We’ll recommend the right system.

Visit our Contact page for email and phone support. Have your order number and model/serial numbers ready.

Visit our Installation Guides & FAQs page for downloadable manuals and detailed tutorial videos.