A Black Friday "deal" is often a normal price next to an inflated list price. Here a DIY mini-split only counts as on sale when its checked price is at least 15% below its own typical price over the last 90 days, from our price history. The best-rated models are listed too, since many are good value without a sale.
On sale now
No DIY mini-split rated 3.8 or higher is 15% or more below its typical price at the last price check (October 21, 2026). Prices are rechecked through the sales; this list updates when one drops. See the recent price changes.
Best buys at their normal price
The top-rated models in each size. A sale on one of these is worth more than a big discount on a weaker model.
Best 9,000 BTU DIY Mini-Splits
- Della Optima Pro CloudAir 9,000 BTU 230V#1 of 11Full review
The best value for heating through a cold winter, if you can pull a vacuum yourself or pay someone to. It holds its full rated heat at 5 °F for far less than a quick-connect unit that does the same.
Amazon $1,049.96 Della $1,049.96$1,049.969,10010.5Flare$115 - Pioneer Quantum Hyperformance 9,000 BTU 230V#2 of 11Full review
Full rated heat in deep cold at a fair price, for a self-installer comfortable with a vacuum pump. Della’s Optima Pro has near-identical certified ratings for a little less.
Amazon $1,311 Pioneer Mini Split store $1,318$1,3119,50010.5Flare$138 - Della Optima CloudAir 9,000 BTU 230V#3 of 11Full review
The cheapest way into a certified, cold-capable heat pump, for a self-installer with a vacuum pump. Pioneer’s Quantum Ultra and the quick-connect Klimaire DIY have near-identical certified ratings.
Amazon $879.96 Della $879.96$879.967,1009.5Flare$124
Best 12,000 BTU DIY Mini-Splits
- Della Optima Pro CloudAir 12,000 BTU 230V#1 of 13Full review
The best value for heating through a cold winter, if you can pull a vacuum yourself or pay someone to. It holds its full rated heat at 5 °F for far less than a quick-connect unit that does the same.
Amazon $1,249.96 Della $1,249.96$1,249.9612,00010.5Flare$104 - Pioneer Quantum Hyperformance 12,000 BTU 230V#2 of 13Full review
Full rated heat in deep cold at a fair price, for a self-installer comfortable with a vacuum pump. Della’s Optima Pro has near-identical certified ratings for a little less.
Amazon $1,398 Pioneer Mini Split store $1,398$1,39812,00010.5Flare$116 - Della Optima CloudAir 12,000 BTU 230V#3 of 13Full review
The cheapest way into a certified, cold-capable heat pump, for a self-installer with a vacuum pump. Pioneer’s Quantum Ultra and the quick-connect Klimaire DIY have near-identical certified ratings.
Amazon $949.96 Della $949.96$949.969,10010Flare$104
Best 18,000 BTU DIY Mini-Splits
- Della Optima Pro CloudAir 18,000 BTU 230V#1 of 10Full review
The best value for heating through a cold winter, if you can pull a vacuum yourself or pay someone to. It holds its full rated heat at 5 °F for far less than a quick-connect unit that does the same.
Amazon $1,849.96 Della $1,849.96$1,849.9617,80010Flare$104 - Pioneer Quantum Hyperformance 18,000 BTU 230V#2 of 10Full review
Full rated heat in deep cold at a fair price, for a self-installer comfortable with a vacuum pump. Della’s Optima Pro has near-identical certified ratings for a little less.
Amazon $1,878 Pioneer Mini Split store $1,878$1,87817,80010Flare$106 - Perfect Aire 4th Gen Quick Connect 18,000 BTU 230V#3 of 10Full review
A quick-connect unit with one of the longest warranties for a self-install, priced below MrCool’s DIY 5th Gen. Its −4 °F heating limit rules it out as the only heat in a very cold climate.
Amazon $1,981.82$1,981.8218,00010Quick-connect$110
Best 24,000 BTU DIY Mini-Splits
- Della Optima Pro CloudAir 24,000 BTU 230V#1 of 9Full review
The best value for heating through a cold winter, if you can pull a vacuum yourself or pay someone to. It holds its full rated heat at 5 °F for far less than a quick-connect unit that does the same.
Amazon $2,249.96 Della $2,249.96$2,249.9622,40010Flare$100 - Pioneer Quantum Hyperformance 24,000 BTU 230V#2 of 9Full review
Full rated heat in deep cold at a fair price, for a self-installer comfortable with a vacuum pump. Della’s Optima Pro has near-identical certified ratings for a little less.
Amazon $2,298 Pioneer Mini Split store $2,323$2,29822,40010Flare$103 - Perfect Aire 4th Gen Quick Connect 24,000 BTU 230V#3 of 9Full review
A quick-connect unit with one of the longest warranties for a self-install, priced below MrCool’s DIY 5th Gen. Its −4 °F heating limit rules it out as the only heat in a very cold climate.
Amazon $2,025.45$2,025.4519,8009.5Quick-connect$102
Best 36,000 BTU DIY Mini-Splits
- Klimaire KIWQ-KOIQ DIY 5th Gen 36,000 BTU 230V#1 of 2Full review
The best-value quick-connect line: the same certified system as Pioneer’s Quantum Ultra, close to Della’s Optima, without the vacuum pump, for the same price or a few hundred dollars more.
Amazon $2,619$2,61920,4009Quick-connect$128 - MrCool DIY 5th Gen 36,000 BTU 230V#2 of 2Full review
The pricier of the two 36,000 BTU quick-connect units, with a better heating limit and quieter indoor unit than the Klimaire. Neither keeps much of its heat in deep cold.
Amazon $3,569.99 MRCOOL DIY Direct $3,790$3,569.9922,0008.5Quick-connect$162
Prices were last checked October 21, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.