DIY Mini Split Heat Pumps
Professional HVAC, DIY Prices

A DIY mini split consists of an outdoor unit and one or more indoor air handling units connected by refrigerant lines and a pre charged line set. Unlike traditional HVAC systems that rely on existing ductwork, a ductless mini split system delivers heating and cooling directly to each room through wall-mounted air handlers, ceiling cassette units, or concealed ducted indoor units. Zone mini split heat pumps use advanced DC inverter compressor speed technology with 24 SEER2 efficiency for year-round temperature control in heating mode and cooling mode.

Yes! DIY mini split installation is straightforward with Zone systems. Our pre charged line sets eliminate the need for expensive contractors and specialized vacuum equipment. A typical DIY install takes 2-4 hours using basic tools — no special tools required. You will need to run the electrical wiring (a standard 20A or 30A circuit) and mount the indoor and outdoor units, but our step-by-step guides walk you through easy installation from start to finish. The advantage of DIY mini splits is that you save $3,000-$5,000 on installation cost.

Zone customers typically save $3,000-$5,000 on the total cost compared to contractor installation. You save on labor cost, markup, and installation fees. When you purchase a Zone DIY mini split system, you pay a fraction of what MrCool DIY and Perfect Aire charge for comparable units. Plus, our energy efficient heat pump systems save you hundreds annually on energy bills — up to 60% less than traditional HVAC systems. Between the DIY install savings and lower energy cost, most homeowners save $5,000-$10,000 over the first 5 years.

Mini split sizing depends on room square footage, insulation quality, ceiling height, and climate zone. As a general guide: a single zone 9K BTU mini split covers up to 350 sq ft, 12K BTU covers 350-550 sq ft, and 18K BTU covers 550-1,000 sq ft. For larger spaces or multiple rooms, consider a multi zone system with multiple air handlers. For larger homes, use our free Manual J calculator to determine the right cooling and heating capacity. The cost typically ranges from $1,899-$4,499 depending on the system size you purchase.

Zone mini split systems achieve up to 24 SEER2 — the highest seer rating in the DIY mini split category. Our energy efficient ductless mini split heat pumps save up to 60% on energy compared to traditional HVAC systems by using inverter-driven compressor speed control. The heat pump works by transferring heat between indoor and outdoor units rather than generating it, which is why heat pumps are so efficient. In cooling mode, the system works as an air conditioner. In heating mode, including hyper heat mode, our units efficiently heat your space down to -13°F. This efficiency saves you hundreds per year on energy cost.

All Zone ductless mini split heat pumps come with a comprehensive 5-year warranty on parts and 5-year warranty on the compressor. We also offer a 45-day satisfaction guarantee so you can try your mini split system risk-free. With proper maintenance — including checking refrigerant levels and cleaning filters — your system will last 15-20 years. Free technical support is available via phone, email, and chat to help with installation questions or troubleshooting. Our warranty covers potential damage from manufacturing defects at no additional cost.

Zone Air DIY mini splits offer several advantages over MrCool DIY and Perfect Aire systems. Zone units feature 24 SEER2 efficiency (the highest seer rating available for DIY mini splits), hyper heat capability down to -13°F, and R454b eco-friendly refrigerant. When you shop and compare, Zone systems are priced competitively while including pre charged line sets, a wifi control module, and a full 5-year warranty. The advantage of choosing Zone over MrCool DIY or Perfect Aire is better efficiency, colder climate performance, and lower total cost of ownership. Plus, you save with our easy DIY install — no special tools required.

A single zone mini split system has one outdoor unit connected to one indoor unit — perfect for heating and cooling a single room or space up to 1,000 sq ft. A multi zone mini split system connects one outdoor unit to multiple indoor air handling units, allowing you to control the temperature in multiple rooms independently. For example, a dual-zone system can have two wall-mounted air handlers or a mix of wall mount and ceiling cassette indoor units. Multi zone systems are ideal for larger homes or when you want to heat and cool multiple rooms without existing ductwork. Single zone systems typically ranges from $1,899-$2,699, while multi zone systems start at $3,499.