Yes — we offer free curbside delivery on all MRCOOL® orders in the continental U.S.

Most products ship within 3–5 business days and arrive within 4–10 days depending on your location.

You will receive a tracking link as soon as your order ships. Freight carriers will contact you to schedule delivery.

Please inspect the shipment at delivery. If any visible damage exists, note it with the driver, take photos, and contact us within 48 hours so we can resolve it quickly.

Curbside delivery means the driver will deliver to the nearest accessible location — they cannot bring items indoors or upstairs.

Yes — MRCOOL® DIY® systems include pre-charged Quick Connect™ line sets, allowing homeowners to complete installation without an HVAC license. Just follow the included steps and video guides.

MRCOOL® Universal, EasyPro®, and Olympus® systems typically require a licensed HVAC technician to handle refrigerant lines and electrical connections. This helps maintain warranty protection.

Common household tools like a drill, level, screwdrivers, and wrenches are usually enough. A 2.5” hole saw is recommended for routing the line set through the wall.

DIY installations usually take 2–6 hours depending on layout and number of zones. Multi-zone or attic installations can take slightly longer.

We offer post-purchase technical support and can help troubleshoot common questions. If preferred, we can also assist with finding a certified installer in your area.

We accept all major debit and credit cards, PayPal, and secure financing. Every transaction is encrypted and processed securely for your protection.

Yes — flexible financing plans are available at checkout, with quick approval decisions. Credit requirements vary by provider, but many customers are approved even with fair credit.

Sales tax depends on the delivery address and local regulations. The exact amount will be shown before you complete checkout.

Most declines are due to bank authorization or card verification issues. Try another card or contact your bank, then complete checkout again.

Yes — we use industry-standard secure transaction technology, and we never store your full payment details. Your information is fully protected throughout checkout.

Returns are accepted within 30 days on new, unopened products in original packaging. This ensures every customer receives a brand-new, fully warrantable system.

Yes — HVAC equipment requires special handling, so a restocking fee of up to 35% may apply. We will always confirm the exact amount with you before issuing a return authorization to prevent any surprises.

If your order hasn’t shipped yet, we can usually cancel and refund it right away. Once an item is in transit, standard return conditions apply.

Just contact us with your order number and reason for return. We’ll confirm eligibility and provide clear next steps with your return authorization if approved.

Please inspect your shipment upon delivery and report any visible damage within 48 hours. We’ll handle the replacement process directly with the carrier and ensure you receive a fully functional unit.

MRCOOL® offers industry-leading warranty protection on major components such as the compressor and parts, typically ranging from 5–7 years depending on the model. Full details are provided on each product page.

Register your system on the MRCOOL® website using the model and serial number after installation. This ensures you receive full warranty benefits from the manufacturer.

Yes — using a certified HVAC installer for systems that require pro installation helps maintain full warranty coverage. DIY® systems remain covered when installed according to MRCOOL® guidelines.

Warranty does not cover issues caused by incorrect installation, misuse, or physical damage after delivery. Consumables like filters and routine maintenance are also not included.

Warranty service is provided directly by MRCOOL®. If you ever need support, we’ll assist you with documentation and contact details to make the process smooth.

Start with square footage:
• 100–250 sq ft → 6,000 BTU
• 250–400 sq ft → 9,000 BTU
• 400–600 sq ft → 12,000 BTU
• 600–900 sq ft → 18,000 BTU
• 900–1,200 sq ft → 24,000 BTU
Proper sizing ensures comfort, efficiency, and longer system life.

Yes — hot climates, high ceilings, older homes, or poor insulation may require 15–25% more BTU. Cooler climates or well-insulated rooms may need slightly less.

Bright, sunny rooms may need an extra 10–15% BTU. South- and west-facing spaces especially benefit from a stronger system.

Yes — multi-zone systems allow multiple indoor units to connect to a single outdoor condenser. They’re perfect for open layouts or whole-home comfort.

An undersized unit may struggle and increase energy costs. An oversized system may short-cycle and wear out sooner. We’re here to help ensure you select the perfect fit for your space.

Yes — MRCOOL® heat pumps use advanced inverter technology to maintain strong heating performance even in sub-zero temperatures. Hyper-Heat models are specifically engineered for cold climates.

Hyper-Heat units deliver more stable heating capacity in extreme cold, preventing drop-off in performance. They’re ideal for northern regions or homes that rely on heat pumps as the primary heat source.

In many homes — yes. A properly sized heat pump can provide full-time heating and cooling year-round. In extremely cold climates, homeowners sometimes keep a backup heat source for rare weather spikes.

Absolutely — inverter heat pumps adjust output based on demand, using significantly less energy than traditional systems. This can reduce heating bills by up to 30–50%.

Keep the outdoor unit free of snow and debris to maintain airflow. Regular filter cleaning and yearly check-ups ensure peak cold-weather performance.

Ensure the system is in the correct mode, clean the filters, and close windows/doors to maintain airflow. Clearing any obstructions around the outdoor unit can also instantly improve performance.

Condensation is normal during cooling mode and indicates the system is removing humidity. If water is leaking inside the home, the drain line may need clearing or adjustment.

Each code identifies a specific condition. Check your user manual or contact us — we can help interpret the code and guide you through the next steps.

Mini-splits adjust speed and temperature automatically. Short periods of cooler air or a brief “whoosh” sound can occur during defrost cycles and are normal.

First, check that the breaker is on and the remote has fresh batteries. If the problem continues, power-cycle both units by turning them off for a few minutes, then restart the system — and if needed, reach out to our support team for quick assistance.

Choose DIY® if you want easy installation with no HVAC license required. Choose Universal, EasyPro®, or Olympus® if you prefer pro installation, already have ductwork, or want a whole-home solution.

BTU depends on room size, insulation, and sun exposure. Check our BTU Sizing & Climate Guide above — and if you’re unsure, we’ll help match you with the perfect system.

Pick single-zone for heating/cooling one room or area. Choose multi-zone if you want comfort across multiple rooms using one outdoor unit.

Hyper-Heat and Universal Series units maintain strong heating performance even in sub-zero temperatures — ideal for northern regions.

Yes — many homeowners replace old HVAC with high-efficiency inverter heat pumps for year-round comfort. We can help you choose the right setup whether or not your home has ductwork.

You can reach our U.S. support team anytime at support@coolheatdirect.com. We respond quickly during normal business hours and always prioritize post-purchase assistance.

We’re here for the life of your system — from troubleshooting to warranty questions and replacement parts. You’re never left on your own after delivery.

Most inquiries receive a reply within 1 business day, often much faster. Urgent delivery or installation issues are handled with priority.

Yes — we can help locate compatible parts and upgrade accessories for your MRCOOL® system. Just tell us your model and serial number and we’ll take care of the rest.

Every product page includes downloadable manuals and official MRCOOL® video guides. We can also send documentation directly if needed — just ask.