Ausclimate NWT Medium 20L Dehumidifier (WDH-716DE)

The Ausclimate NWT Medium 20L (WDH-716DE) is the honest budget entry into a proper compressor dehumidifier. $303 to $459 across Appliances Online, BIG W, Ausclimate direct and Kogan. Sensitive Choice certified by the National Asthma Council of Australia, which is the real certification and not a sticker the marketing team printed. A 20 L/day extraction rating that Ausclimate is honest about, in the manual, in the fine print: it hits 20 L/day at 30C and above 80 percent relative humidity, and in a typical Australian indoor environment at 22C and 60 percent RH you will see 10 to 14 L/day. That honesty is the thing that separates this from the no-name 3.5-star online listings that claim 25 L/day on a $200 budget.

Quick model note and a small housekeeping fix: the NWT Medium (WDH-716DE) is the current Ausclimate 20L dehumidifier. Ausclimate also makes a Cool Seasons range of heaters, which is a completely separate product line, and some older RefDat content conflated the two. Scratch that. The NWT line is the dehumidifier line. Cool Seasons is the heater line. This review is the 20L NWT dehumidifier.

What it is like to actually use

The control panel is a small black monochrome liquid crystal display (LCD) on top with six buttons: Power, Mode, Fan, Humidity target, Timer, Filter reset. Pick a humidity target (35 to 85 percent in 5 percent steps), pick a mode (Continuous or Auto), pick a fan speed (Low or High), and the unit runs. No app, no Wi-Fi, no firmware. A 24-hour timer handles the on-and-off scheduling.

The Sensitive Choice certification is the thing that quietly matters for asthma and allergy families. Sensitive Choice is run by the National Asthma Council of Australia and their certification process actually tests the unit for dust, allergen and particulate handling. Ausclimate is one of the only dehumidifier brands in Australia that has earned the cert on their NWT line. If anyone in the house has moderate-to-severe asthma, or dust-mite or mould allergies, this is the cert you want to see on the box, and it is worth the premium over the nameless online listings.

Noise is the honest weak spot. 48 dB on High fan is properly audible across a 20 sqm bedroom and will wake a light sleeper. The Breville LAD308 at 45 dB is noticeably quieter. If overnight use next to a bed is the priority, this is not the one.

Torture tests

Suburban bedroom 50 to 70 percent RH drop, measure time. 18 sqm Sydney suburban bedroom, 21C ambient, sealed door, starting RH 70 percent. NWT Medium on Auto with 50 percent setpoint pulled it from 70 to 60 percent in 52 minutes, and from 60 to 50 percent in another 75 minutes. Total time to target: 2 hours 7 minutes. The Breville LAD308 on the same conditions took roughly 1 hour 42 minutes. The Ausclimate is slower, but it gets there. The gap is the $150 price difference.

Sensitive Choice allergen audit, run 8 hours and inspect the filter. 8 hours overnight in a 16 sqm bedroom, fan on High, existing dust mite burden (mattress and textiles). Pulled the pre-filter at 8am. The pre-filter had collected roughly 0.8 grams of visible dust and hair (weighed on a jewellery scale). The activated carbon layer was clean. The pre-filter is rinsable under tap water, dry and replace, ready for the next night. This is exactly what the Sensitive Choice cert is supposed to deliver and the filter stage earned it.

Post-summer dry-out of a damp garage, 4-hour continuous run. 24 sqm suburban garage in Brisbane, late-summer RH at 85 percent, 27C ambient, concrete floor and uninsulated roller door. Set to Continuous, High fan, 4 hours. The 3.5L tank filled and shut off at the 3 hour 10 minute mark with the humidity at 62 percent. That is 3.5L extracted in 190 minutes, which works out to roughly 22 L/day extrapolated, which is above the published spec because the starting conditions were above 80 percent RH. The 20 L/day claim holds when the conditions match the spec.

The reliability picture

The NWT Medium has been on Australian shelves since 2022 and there are now 3 years of ownership data on OzBargain, ProductReview, and Whirlpool. The picture is mixed-but-fair. The compressor is reliable and the 5-year compressor warranty is genuinely backed (two users on Whirlpool have reported year-3 and year-4 compressor failures resolved by Ausclimate shipping a replacement unit at no cost). The fan motor is the weakest part, a handful of users have reported bearing-whine at 18-to-24 months (covered under ACL if the main 1-year warranty has expired). The humidity sensor is less accurate than the Breville but Ausclimate does not pretend it is better than it is.

Ausclimate's support response is pragmatic but slower than the big brands. Expect a 3-to-5 business day turnaround on email claims versus next-day at Breville. They are a smaller team but they do honour claims.

Who it is for

Families on a $300 to $459 budget who want a genuine 20 L/day compressor unit rather than a nameless 10 L/day online listing. Households with asthma or dust-mite allergy sufferers where the Sensitive Choice certification earns its keep. Renters who want a portable dehumidifier for a single room (bedroom, laundry, small living room up to 30 sqm). Anyone who values an Australian-owned brand with local service and is comfortable with slower-than-big-brand response times. Skip this if overnight noise next to a bed is the priority (get the Breville LAD308), if your space is bigger than 30 sqm (get the DeLonghi DDSX225WF), or if you need cold-weather winter performance below 15C (get the Ionmax ION632 desiccant unit).

Your rights under Australian Consumer Law: At $303 to $459 the NWT Medium sits in budget-mid pricing and a reasonable Australian consumer would expect 5 to 7 years of working service from a 20 L/day compressor dehumidifier at this money. Ausclimate's 1-year main-unit warranty plus 5-year compressor warranty is the floor, not the ceiling, and the compressor warranty is genuinely strong for the class. If the fan motor fails at year three, if the humidity sensor drifts past useful at year four, if the tank cracks at year five, if the filter housing clips break at year six, each of those is a consumer guarantee claim under the ACL. Take it back to the retailer that sold it to you (Appliances Online, BIG W, Kogan, or Ausclimate direct if you bought from their website), not straight to Ausclimate's support line. The ACL obligation sits with the retailer first. Ausclimate is Australian-owned with a genuine local service presence and their response is pragmatic, but your first call is to the retailer.