A fast high-temp undercounter dishwasher for kitchens that run out of racks at peak. It is the quickest undercounter here and also the priciest.
Amazon $9,267The Champion UH230B rates 3.4 among undercounter commercial dishwashers; the KoolMore KM-HTD-HT rates 3.3 among door-type ones. The KoolMore KM-HTD-HT costs $4,718 less ($4,549 vs $9,267).
Prices were last checked November 9, 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.

A low-cost high-temp hood dishwasher sold on Amazon, rated for 40 racks an hour. Its maker publishes little beyond speed, so buyers have to take its efficiency on trust.
Amazon $4,549Scores side by side
These two sit in different machine type classes (undercounter and door-type), and each is scored against the reference points for its own class, so a rating says how well each does among its own machine type peers. How we rank explains each factor.
| Factor weight | Champion UH230B | KoolMore KM-HTD-HT |
|---|---|---|
| Overall rating | 3.4/5 | 3.3/5 |
| Value 30% | 39 $231.68 per rack an hour ($9,267, 40 racks/h) | 91 $113.72 per rack an hour ($4,549, 40 racks/h) |
| Throughput 15% | 50 40 racks an hour | 50 40 racks an hour |
| Water use 20% | 69 0.8 gal per rack | 50 water per rack not published (neutral score used) |
| ENERGY STAR 10% | 100 ENERGY STAR certified | 0 ENERGY STAR not claimed, scored as not certified |
| Door opening 10% | 48 14.8 in door opening | 50 door opening not published (neutral score used) |
| Pumps 5% | 100 built-in chemical pumps, drain pump | 50 pumps not published (neutral score used) |
| Warranty 10% | 0 1-year warranty | 0 1-year warranty |
Specifications
| Champion UH230B | KoolMore KM-HTD-HT | |
|---|---|---|
| Washing | ||
| Type | Undercounter | Door-type |
| Sanitizing | High-temp | High-temp |
| Racks per hour | 40 racks/h | 40 racks/h |
| Shortest cycle | 90 s | 90 s |
| Water per rack | 0.8 gal | - |
| Door opening | 14.8 in | - |
| Rack size | 20 x 20 in | - |
| Power | ||
| Electrical | 208-240 V, 1-phase, 32 A | 240 V |
| Built-in booster | Yes | Yes |
| Booster heater | 6 kW | - |
| Tank heater | 2 kW | - |
| Wash pump | 1 hp | - |
| ENERGY STAR | Yes | - |
| Ventless | No | No |
| Features | ||
| Chemical pumps | Yes | - |
| Drain pump | Yes | - |
| Build | ||
| Width | 24 in | 24.2 in |
| Depth | 25 in | 29 in |
| Height | 33.8 in | 55.5 in |
| Weight | 215 lb | 188 lb |
| Warranty | 1 year | 1 year |