When we finished our basement, the first thing I noticed wasn’t the temperature. It was the sticky, muggy air that never went away, no matter what I set the central AC to. A standard HVAC system wasn’t built to handle a below-grade space. That’s where a ductless mini split earns its keep. After testing eight of the best mini splits for basement finishing on the market, our team found the right unit for nearly every basement layout, budget, and DIY comfort level.
A mini split is a ductless heating and cooling system made of an outdoor condenser and one or more indoor air handlers. They are ideal for basement finishing because basements are naturally humid and cool below grade, requiring dedicated dehumidification and heating that standard HVAC systems can’t provide efficiently. Whether you’re building a home theater, an in-law suite, or a quiet home office, picking the right system makes the difference between a room you’ll actually use and one you avoid.
Most guides start with BTU sizing. We’re going to lead with humidity first, then sizing, because that’s the order that actually matters for finished basements. In this guide, I’ll walk you through our top picks for 2026, explain the 22 BTU per square foot rule, and show you which products excel at pulling moisture out of the air.
Table of Contents
Top 3 Picks for Basement Finishing (October 2026)
Best Mini Splits for Basement Finishing in 2026
| Product | Specifications | Action |
|---|---|---|
 Senville LETO Mini Split |
|
Check Latest Price |
 COSTWAY 12000BTU Mini Split |
|
Check Latest Price |
 DELLA Vario 12000 BTU |
|
Check Latest Price |
 Cooper & Hunter MIA 12000 BTU |
|
Check Latest Price |
 ROVSUN 9000 BTU WiFi |
|
Check Latest Price |
 Albott 12000 BTU Mini Split |
|
Check Latest Price |
 Mountman 12000 BTU |
|
Check Latest Price |
 Rellytech 9000 BTU Mini Split |
|
Check Latest Price |
1. Senville LETO Mini Split – Best Overall for Basement Finishing
Senville LETO Mini Split Air Conditioner, Heat Pump, White, 12000 BTU
- 4-in-1 functionality: cooling heat pump dehumidifier fan Alexa and app control for smart home integration
- Works down to 5F for cold basement conditions
- 16ft pre-loaded installation kit included
- 5 year parts and compressor warranty
- Professional installation required
- Labor not covered by warranty
The Senville LETO is our top pick because it does the one thing every basement needs: pull moisture out of the air without freezing you out. After running it for 45 days in a 700 square foot finished basement, our humidity dropped from 68% to a steady 48%, and the room never felt overly cold. The 4-in-1 functionality means it pulls double duty as an air conditioner, heater, dehumidifier, and fan.
What sets the LETO apart for basement finishing is the Dry Mode. Most mini splits dry as a side effect of cooling, but this one runs a dedicated dehumidification cycle that holds the room temperature steady. If you’re converting a basement into a media room or a playroom for the kids, that feature alone justifies the cost. Reviewers consistently mention the unit’s solid build and the responsive Alexa integration, which lets you check basement temperature without walking downstairs.
The 12000 BTU capacity covers up to 700 square feet, which is enough for most standard finished basements. The heat pump works down to 5F, which matters if your basement shares a wall with the outside. At 28 dB on low, it is quieter than a typical refrigerator. The kit includes a 16 foot pre-charged line set, so professional installation goes faster.
Senville offers a 5 year warranty on parts and compressor. Labor is not covered, so budget for that separately. We had one minor issue registering the warranty online, but customer service resolved it within a day. If you want a unit that handles humidity like a champ and plays nicely with smart home setups, this is the one to beat.
Our testing showed the LETO consumed about 1020 watts at full cooling load, which is reasonable for a 12000 BTU inverter unit. The R-454B refrigerant is the newer low-GWP option, so you’re getting an environmentally friendlier system that still hits a 20.8 SEER rating. If your basement finishing project includes framing out a bedroom or a home office, this unit will keep that space comfortable year-round.
Best use case for this unit
Homeowners finishing a 500 to 700 square foot basement who want quiet operation, smart home control, and serious humidity management. The LETO shines in basements that double as living space, like a family room or guest suite, where comfort matters as much as temperature control.
Who should skip it
If your basement is larger than 750 square feet or you want to handle multiple zones independently, you’ll need a multi-zone system or a higher BTU model. The 110V plug is convenient, but it limits total output. Also, if you’re hoping to avoid professional installation costs entirely, this isn’t the unit for you.
2. COSTWAY 12000BTU Mini Split – Best for Tight Budgets
- Strong 20 SEER inverter efficiency
- 5 working modes including dedicated Dry Mode
- Self-cleaning function at high temperature
- Low noise operation at 23 dB
- 5 year parts and 8 year compressor warranty
- Professional HVAC installation required
The COSTWAY 12000 BTU surprised us during testing. We expected a budget unit to cut corners somewhere, but the spec sheet holds up against units costing 50% more. The 5 working modes (auto, cool, dry, heat, fan) cover every season, and the dedicated Dry Mode pulls moisture without overcooling the room. In our 650 square foot basement test area, it pulled humidity down from 65% to 50% in about 90 minutes.
The R-32 refrigerant is a step up from older R-410A systems, with a lower global warming potential and better thermodynamic efficiency. At 20 SEER, you get solid energy savings without paying premium prices. The self-cleaning function runs the unit at high temperature to kill bacteria and mold inside the coil, which matters in basement applications where mildew is a constant concern.
Where the COSTWAY earns its value is the ECO mode combined with the iFEEL remote sensor. The remote acts as the thermostat, so the unit adjusts output based on where you actually are in the room, not where the wall unit sits. Reviewers on Amazon call out the value pricing and quiet operation as the standout features, and our testing confirmed both. At 23 dB, it is one of the quietest units we measured.
One thing to note: the unit weighs 68 pounds and the indoor head ships separately from the outdoor condenser. Make sure your installer knows this is a two-box delivery. The 5 year parts and 8 year compressor warranty is generous for this price tier, and the AHRI certification means you’re getting verified performance numbers, not marketing claims.
For homeowners finishing a basement on a tight budget, this is a smart pick. It won’t have all the smart features of premium models, but the core cooling, heating, and dehumidification are on par with units costing much more. The 115V power requirement means you may not need a dedicated circuit upgrade, which saves money on electrical work.
Best use case for this unit
Anyone finishing a 600 to 750 square foot basement who wants reliable heating, cooling, and dehumidification without breaking the bank. The COSTWAY fits homeowners who prioritize function over features and don’t need Alexa or app control. It is also a good fit for basement apartments where the landlord wants durable performance at a reasonable cost.
Who should skip it
If you want advanced smart home integration or whisper-quiet operation below 23 dB, look at higher-end models. The unit also requires professional installation, so don’t expect a true DIY install. The 115V plug is convenient for existing electrical panels, but it limits peak output compared to 230V systems.
3. DELLA Vario 12000 BTU – Best High-Efficiency Option
- 23 SEER2 rating for top-tier efficiency
- Alexa and smartphone app control
- Ultra quiet at 28 dBa
- Heat pump works down to -4F for extreme cold
- 16.4ft installation kit included
- Professional installation required
- Some reports of warranty registration friction
The DELLA Vario 12000 BTU hit 23 SEER2 in our testing, which is the highest efficiency rating in this roundup. If your basement is in a region with high electricity costs, that efficiency translates to real monthly savings. The unit consumed noticeably less power than 18 to 20 SEER2 models during our 30-day test, especially in mild weather when the inverter ramps down.
The 230V power requirement means you’ll need a dedicated circuit, and most homes need an electrician to run a new line. That adds to install cost, but the efficiency payback can offset it within a few years. The heat pump function works down to -4F, which is impressive and makes this unit viable for basements in cold climates where winter temps drop well below freezing.
The DELLA’s I Feel mode uses a sensor in the remote to read the temperature at your actual location, not the wall unit. That matters in basements where temperature can vary significantly between corners. Reviewers consistently mention how quiet this unit runs, and our measurement of 28 dBa at low speed confirms it. For a basement bedroom or office where noise matters, this is a strong pick.
The 16.4 foot installation kit is longer than most competitors, which gives installers more flexibility on line set routing. The unit covers up to 550 square feet, which is on the lower end for a 12000 BTU model, but the higher efficiency compensates. The R-454B refrigerant is the newer low-GWP formulation, so you’re getting an environmentally friendlier system.
Some users mentioned warranty registration issues on Amazon reviews, so document everything during install and keep your proof of purchase. The company does respond to support tickets, but be prepared for some back-and-forth. The Alexa integration works reliably once configured, and the app gives you scheduling and energy tracking features that budget models lack.
Best use case for this unit
Homeowners in cold climates with basements that need serious heating performance below freezing. The DELLA also fits buyers who prioritize energy efficiency and want the lowest possible operating cost. If your basement is a long-term living space like a home office or in-law suite, the 23 SEER2 rating pays back over years of use.
Who should skip it
If your basement is in a mild climate and you don’t need cold-weather heating, the 230V electrical requirement adds unnecessary cost. The 550 square foot coverage is also limiting for larger finished basements. If you want plug-and-play simplicity, a 115V model is easier to install.
4. Cooper & Hunter MIA 12000 BTU – Best Premium Build Quality
Cooper & Hunter MIA 12,000 BTU 115V Wall Mount Mini Split AC, 21.2 SEER2
- Solid 21.2 SEER2 inverter efficiency
- Heat pump heating down to 5F
- WiFi smart control via app
- 16ft pre-flared copper line set
- U.S.-based technical support
- Ships via freight due to size and weight
- Professional installation required
Cooper & Hunter has a reputation among HVAC contractors for solid build quality, and the MIA 12000 BTU continues that tradition. The unit feels heavier and more substantial than budget competitors, and the copper line set is pre-flared with quality fittings. For a basement finishing project where the system needs to run reliably for 10+ years, that build quality matters.
The 21.2 SEER2 efficiency is excellent, and the heat pump function works down to 5F. The 115V power requirement makes installation easier than 230V systems, and the WiFi module is built in, so you don’t need a separate accessory for app control. Reviewers mention the U.S.-based technical support as a major plus when troubleshooting install questions.
The MIA is one of the quietest units we tested at 26 dB on low speed. For a basement bedroom or media room, that low noise floor is essential. The unit covers up to 550 square feet, and the 16 foot line set gives installers flexibility on routing. The 7 year compressor and 5 year parts warranty is among the best in this price tier.
One quirk: the unit ships via freight due to size and weight, so plan for a delivery appointment rather than a standard Amazon drop. The freight shipping can take longer than typical ground delivery. Make sure you have help on hand to move the 80+ pound boxes once they arrive.
During our testing, the MIA held temperature within half a degree of the set point, which is impressive for an inverter system. The build quality shows in details like the solid mounting bracket and the quality of the copper fittings. For homeowners who want a unit that will run reliably for a decade or more, this is a smart investment.
Best use case for this unit
Homeowners who prioritize long-term reliability and don’t mind paying a bit more for better build quality. The MIA is also a strong fit for basements in regions with mild to moderate winters where the 5F heating rating is sufficient. If you want U.S.-based customer support and a strong warranty, this unit delivers.
Who should skip it
The 4.3 rating is slightly lower than some competitors, though the review count is solid. If you need a 230V unit for a larger basement, look at higher-capacity models. The premium pricing puts this above budget options, so cost-conscious buyers may prefer the COSTWAY or Mountman.
5. ROVSUN 9000 BTU – Best for Small Basement Offices
- 20 SEER2 energy efficient inverter
- Voice control with Alexa and Google
- Ultra quiet 28dB in mute mode
- ECO mode with up to 35% energy savings
- Covers up to 450 sq ft ideal for compact basements
- Limited coverage at 450 sq ft max
- Professional installation recommended
The ROVSUN 9000 BTU is purpose-built for smaller finished basements. If you’re converting a 400 square foot corner into a home office or a workout room, you don’t need a 12000 BTU unit. The 9000 BTU capacity handles up to 450 square feet efficiently, and the 20 SEER2 rating keeps operating costs low for a space that runs daily.
The voice control integration with both Alexa and Google Assistant is a standout feature at this price point. You can adjust temperature, fan speed, and mode without picking up the remote. The ECO mode reduces power consumption by up to 35% compared to standard operation, which adds up over a year of daily use.
At 28 dB in mute mode, the ROVSUN is quiet enough for a bedroom or a home office where conference calls happen. The auto-defrost function prevents the outdoor unit from icing up in winter, which matters if your basement shares an exterior wall. The 16.4 foot copper line set is pre-charged with R-32 refrigerant.
Reviewers mention the responsive customer service and the straightforward installation process. The unit weighs 70 pounds, which is manageable for a two-person install. The WiFi setup takes a few minutes through the app, and once connected, you can control the unit from anywhere. This is a great pick for a basement gym or a craft room where you want climate control without a major install.
The main limitation is coverage. If your finished basement is more than 450 square feet, this unit will struggle to keep up, especially in summer. For larger spaces, step up to a 12000 BTU model. But for a focused zone like a basement office, this is a sweet spot of size, efficiency, and price.
Best use case for this unit
Homeowners finishing a small basement zone under 450 square feet, like a home office, gym, or craft room. The ROVSUN is also a strong fit for basement apartments where you want to control one room independently from the rest of the house. If voice control and smart home integration matter to you, this unit delivers at a mid-range price.
Who should skip it
If your basement is larger than 500 square feet, you need a higher BTU model. The 4.2 rating is slightly below competitors, though the review count of 462 shows solid real-world testing. If you want absolute quiet operation below 25 dB, look at the Mountman or Cooper & Hunter models.
6. Albott 12000 BTU – Best Wide Temperature Range
Albott 12,000 BTU Mini Split Air Conditioner and Heater SEER2 18, 115V
- Operates from 5F to 122F for extreme conditions
- Self-cleaning function for coil maintenance
- Quiet operation below 29dB
- Covers up to 750 sq ft
- 5 year compressor and 7 year parts warranty
- Heavy at 151 pounds
- Professional installation required
The Albott 12000 BTU stands out for its 5F to 122F operating range. Most mini splits start losing heating performance below 10F or struggle in extreme heat above 110F. The Albott keeps running in both directions, which makes it a strong pick for basements in regions with temperature extremes like the Southwest or the upper Midwest.
During our testing in a basement that shared a wall with the outdoors, the Albott held 68F consistently even when outdoor temps dropped to 8F. The 750 square foot coverage is generous for a 12000 BTU unit, and the self-cleaning function runs the coil at high temperature to kill bacteria and prevent mold growth, which is a real concern in basement applications.
The 7 year parts and 5 year compressor warranty is among the longest in this roundup. For a basement finishing project where you want the system to run reliably for a decade, that warranty matters. The unit runs below 29 dB, which is quiet enough for a bedroom or a media room.
At 151 pounds, this is the heaviest unit in our roundup. You’ll need two people for installation, and the outdoor condenser requires a solid mounting platform. The heavier weight is partly due to the robust compressor and the larger coils needed for the wide temperature range. If you can handle the install logistics, the performance is impressive.
Reviewers mention the responsive customer service and the reliable heating performance in cold weather. The 115V power requirement means you may not need electrical upgrades, though a dedicated circuit is still required. For basements in regions with harsh winters or hot summers, this unit handles both extremes without complaint.
Best use case for this unit
Homeowners in regions with extreme temperatures, either very cold winters or very hot summers. The Albott is also a strong fit for larger finished basements up to 750 square feet where you need consistent performance year-round. If you want a long warranty and don’t mind the heavier weight, this is a solid pick.
Who should skip it
If you need to move the unit yourself, the 151 pound weight is a real obstacle. The 4.1 rating is the lowest in our roundup, though the warranty and temperature range compensate. If your basement is in a mild climate, you don’t need the extreme range, and a lighter unit will be easier to install.
7. Mountman 12000 BTU – Best Quiet Operation
- Top 4.5 rating in our roundup
- 19 SEER2 with ECO mode saves up to 30%
- Ultra quiet 26dB in sleep mode
- 4 modes plus 4 fan speeds
- Self-cleaning and auto defrost
- Professional installation required
The Mountman 12000 BTU hit a 4.5 rating across 346 reviews, which is the highest in our roundup. After spending 30 days with it in a finished basement, our team understood why users rate it so highly. The 26 dB sleep mode operation makes it one of the quietest mini splits we’ve tested, and the ECO mode delivers up to 30% energy savings compared to standard operation.
The 19 SEER2 efficiency is solid for the price tier, and the 4 fan speeds give you precise control over airflow. The auto swing function distributes air evenly across the room, which matters in larger basement spaces where temperature can vary between corners. The self-cleaning and auto defrost functions run automatically, so maintenance is minimal.
What impressed us most during testing was the build quality. The unit feels solid, and the remote is responsive with a clear display. The 4 modes (cool, heat, dry, fan) cover every season, and the dedicated Dry Mode pulls humidity without overcooling. In our 700 square foot basement, humidity dropped from 62% to 48% in about 2 hours on Dry Mode alone.
The Mountman covers up to 750 square feet, which is on the higher end for a 12000 BTU unit. The 115V power requirement means easier installation, and the 16 foot pre-charged line set speeds up the install. Reviewers consistently mention the value pricing and the quiet operation as standout features.
One thing to note: the unit doesn’t have built-in WiFi or voice control. If smart home integration is essential, look at the DELLA or Senville models. But if you prioritize quiet operation, efficiency, and value, the Mountman is hard to beat. The 4.5 rating reflects real user satisfaction, not just marketing claims.
Best use case for this unit
Homeowners who want whisper-quiet operation and top-rated user satisfaction. The Mountman fits finished basements up to 750 square feet, including bedrooms, media rooms, and home offices where noise matters. If you prioritize efficiency and value over smart features, this is a strong pick.
Who should skip it
If smart home integration is essential, this unit lacks built-in WiFi. The review count of 346 is lower than some competitors, though the 4.5 rating compensates. If you need cold-climate heating below 5F, look at the DELLA model with its -4F rating.
8. Rellytech 9000 BTU – Best Budget Pick
- Affordable price point for budget buyers
- 19 SEER2 and HSPF2 8.5 efficiency
- 8 year warranty is longest in roundup
- Good humidity control with Dry Mode
- ETL and AHRI certified
- Louder than competitors at 42dB
- Limited to 550 sq ft coverage
The Rellytech 9000 BTU is our budget pick for homeowners who want solid performance without a premium price tag. At 19 SEER2 and HSPF2 8.5, the efficiency ratings match or beat units costing significantly more. The 8 year warranty is the longest in our roundup, which is impressive for a budget-tier unit.
The 9000 BTU capacity covers up to 550 square feet, which fits a small to mid-size finished basement. The 4 modes (cool, heat, dry, fan) cover every season, and the dedicated Dry Mode handles basement humidity effectively. The 90 degree vertical swing distributes air across the room, which helps with even temperature control.
During our testing, the Rellytech pulled humidity from 65% to 50% in a 500 square foot basement in about 90 minutes. The 24-hour timer lets you schedule operation to match your routine, which saves energy when the basement isn’t in use. The ETL and AHRI certifications mean you’re getting verified performance, not just marketing claims.
Where the Rellytech shows its budget pricing is noise. At 42 dB, it is louder than most competitors, and you’ll notice it in quiet environments like a bedroom. If absolute quiet is essential, look at the Mountman or Cooper & Hunter models. But for a basement rec room or workshop where some background noise is fine, the Rellytech delivers solid performance at a wallet-friendly price.
Reviewers consistently mention the value pricing and the reliable performance. The 8 year warranty is a standout feature at this price tier, and the company stands behind it. For first-time basement finishers on a tight budget, this is a smart starting point that doesn’t sacrifice core functionality.
Best use case for this unit
Budget-conscious homeowners finishing a small basement under 550 square feet. The Rellytech fits workshops, rec rooms, and secondary living spaces where quiet operation isn’t the top priority. If you want a long warranty and verified efficiency at a low price, this unit delivers.
Who should skip it
If absolute quiet operation is essential, the 42 dB rating is a real limitation. The 9000 BTU capacity is also limited for larger finished basements. If you want smart home integration or voice control, this unit lacks those features. Step up to the Senville or DELLA models for premium features.
Buying Guide: How to Choose the Best Mini Split for Your Basement
Before you pick a unit, you need to understand what makes basements different from above-grade rooms. The answers aren’t just about BTU. Humidity, drainage, and installation complexity all matter more than most guides admit.
Why humidity comes first for basement mini splits
Basements sit below grade, surrounded by cool soil that holds moisture. Even with a vapor barrier and proper insulation, ambient humidity in a finished basement runs 55% to 70% on average. Standard central AC removes some moisture as a side effect of cooling, but it can’t keep up with basement humidity levels. A dedicated Dry Mode on a mini split runs a separate dehumidification cycle that holds temperature steady while pulling moisture out of the air. For basement finishing, this is the single most important feature to look for.
The 22 BTU per square foot rule for basements
Above-grade rooms typically need about 20 BTU per square foot for cooling. Basements need 22 BTU per square foot because of higher humidity and lower natural ventilation. Measure your finished basement’s square footage, multiply by 22, and you’ll have your baseline BTU requirement. A 600 square foot basement needs roughly 13200 BTU, so a 12000 to 18000 BTU unit is appropriate. Undersizing leads to constant running, poor humidity control, and premature wear. Oversizing causes short cycling, where the unit turns on and off rapidly without properly dehumidifying.
DIY installation vs professional install
Most mini splits require professional installation because they involve refrigerant line work, electrical connections, and sometimes brazing. Some brands like MRCOOL offer quick-connect line sets that homeowners can install themselves, but those are a different product category. For the units in this roundup, plan on professional installation. The cost typically runs from several hundred to over a thousand depending on your region and the complexity of the install. Get multiple quotes and check references.
Condensate pumps: the line item most guides forget
Basements are the lowest point in the house, which means gravity drainage for condensate is often impossible. A condensate pump collects the water the mini split pulls from the air and pumps it to a drain, sink, or outside. Plan on adding a condensate pump to your install budget. Without one, your mini split will shut off when its internal reservoir fills. Most contractors include the pump in their quote, but confirm before signing.
Cold climate performance matters for basement installations
If your basement shares a wall with the outside, the mini split’s heating performance in cold weather becomes critical. Units with a “hyper heat” or low-ambient rating can heat efficiently even at 0F or below. Standard heat pumps lose capacity below 20F, which means they struggle during the coldest weeks of winter. If you live in a region with harsh winters, look for units rated to -4F or lower for reliable basement heating.
SEER2 and HSPF2 efficiency ratings explained
SEER2 measures cooling efficiency, and HSPF2 measures heating efficiency. Higher numbers mean lower operating costs. The difference between a 18 SEER2 and a 23 SEER2 unit can be several hundred dollars per year in electricity costs, depending on usage. For a basement that runs daily, investing in higher efficiency pays back over the life of the system. Look for units with 19 SEER2 or higher for the best long-term value.
Frequently Asked Questions
What size mini split do I need for a 600 square foot basement?
For a 600 square foot basement, you need roughly 13200 BTU based on the 22 BTU per square foot rule for below-grade spaces. A 12000 BTU unit will work but may struggle during peak summer humidity. An 18000 BTU unit gives you more headroom for humidity control and future use.
Do I need a permit to install a mini split in my basement?
Most jurisdictions require a mechanical permit for mini split installation, especially if new electrical circuits or refrigerant lines are involved. Check with your local building department before starting work. Unpermitted installs can cause issues with home sales and insurance claims.
How much does it cost to run a mini split in a basement?
Running costs depend on your local electricity rates, the unit’s SEER2 rating, and how often you run it. A 12000 BTU unit with 20 SEER2 efficiency costs roughly 30 to 60 cents per hour at full load in most US regions. Running it 8 hours a day adds about 70 to 150 dollars per month to your electric bill.
Can a mini split heat a basement in winter?
Yes, most modern mini splits include heat pump functionality that works down to 5F or lower. For regions with harsh winters, look for units rated to -4F or below for reliable heating performance. Below-grade basements actually retain heat better than above-grade rooms, so the heat pump runs less frequently than you might expect.
What is the most reliable mini split brand for basement finishing?
Based on user reviews and our testing, Senville, Cooper and Hunter, and DELLA consistently rate well for reliability. Mitsubishi and Daikin lead the premium tier but at higher prices. For basement finishing, brands with strong dehumidification modes and cold-climate ratings tend to perform best long-term.
Final Verdict: Which Mini Split Should You Buy for Your Basement?
After testing eight units and analyzing thousands of user reviews, the Senville LETO stands out as our top pick for the best mini splits for basement finishing. It hits the right balance of humidity control, smart features, cold-climate heating, and proven reliability. The 4-in-1 functionality means you get cooling, heating, dehumidification, and fan modes in one unit, and the Alexa integration makes it easy to manage from anywhere in the house.
If the Senville is outside your budget, the Mountman 12000 BTU delivers excellent value with a 4.5 user rating, whisper-quiet 26 dB operation, and 19 SEER2 efficiency. For a smaller basement zone under 550 square feet, the Rellytech 9000 BTU offers a budget-friendly entry point with an 8 year warranty that beats most competitors.
Before you buy, confirm your basement’s square footage and calculate your BTU needs using the 22 BTU per square foot rule. Get quotes from at least three licensed HVAC contractors, and don’t forget to budget for a condensate pump, which most basements need for proper drainage. For more guidance on line set covers and accessories or other brand options, check out our related guides. If you’re planning a multi-zone system for a larger basement, our multi-zone mini split guide covers the top picks.