Saihemei 12V Under-Dash AC 13700 BTU
#1 in Under-dashFull review
The cheapest under-dash kit, with heating, but a 13,700 BTU claim and nothing else to check it against.
Amazon $358.99$358.99
The Saihemei 12V Under-Dash AC 13700 BTU is the better parking air conditioner overall, rated 3.1 to 2.5. The Saihemei 12V Under-Dash AC 13700 BTU leads on value. The Saihemei 12V Under-Dash AC 13700 BTU costs $171 less ($358.99 vs $529.99).
Prices were last checked November 4, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Aspligo 24V Under-Dash AC 10000 BTU
#4 in Under-dashFull review
The only 24 V under-dash kit here that is cooling-only and cheaper than the heater versions.
Amazon $529.99$529.99
Which should you buy?
- Choose the Saihemei 12V Under-Dash AC 13700 BTU for value ($35.90 per 1,000 BTU ($358.99, 10,000 BTU credited of 13,700 claimed) vs $53 per 1,000 BTU ($529.99, 10,000 BTU)).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every under-dash parking air conditioner; a clear win is highlighted. How we rank explains each one.
| Factor weight | Saihemei 12V Under-Dash AC 13700 BTU | Aspligo 24V Under-Dash AC 10000 BTU |
|---|---|---|
| Overall rating | 3.1/5 | 2.5/5 |
| Value 35% | 69 $35.90 per 1,000 BTU ($358.99, 10,000 BTU credited of 13,700 claimed) | 35 $53 per 1,000 BTU ($529.99, 10,000 BTU) |
| Efficiency 20% | 50 input power not published (neutral score used) | 50 input power not published (neutral score used) |
| Noise 15% | 80 45 dB listed for the indoor unit | 50 noise rating not published (neutral score used) |
| Features 20% | 0 none listed | 0 none listed |
| Warranty 10% | 0 warranty not published, scored as none | 0 warranty not published, scored as none |
Specifications
| Saihemei 12V Under-Dash AC 13700 BTU | Aspligo 24V Under-Dash AC 10000 BTU | |
|---|---|---|
| Cooling and power | ||
| Claimed cooling | 13,700 BTU | 10,000 BTU |
| Supply voltage | 12 V | 24 V |
| Heating | Yes | - |
| Build | ||
| Layout | Under-dash, one unit | Under-dash, one unit |
| Compressor | - | 20 cc |
| Controls, noise and warranty | ||
| Indoor noise | 45 dB | - |