Humidity Cabinet Model
Climate machine · Phase 1

Humidity Cabinet

One rolling cabinet that both adds and removes moisture. The dehumidifier sits at the bottom and blows left to right. Its water is pumped up into a shared tank, and the humidifier sits on top of that tank with its wick standing in the water. A water line tops the tank up only when it runs low.

Size 24 × 16 × 38 in (61 × 41 × 97 cm) Parts $880–1,505 est. Refilling none
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Estimated parts total Rough estimates from typical US retail prices, not quotes. The side-blowing dehumidifier is most of the cost and is what puts this above the $800 target.

Drawings

Front Right side 55% air in air in dry air out moist air out 24 in · 61 cm 38 in · 97 cm exhaust vents wall overflow to sink water in from wall 16 in · 41 cm 4 in
Fig. 1 · Outside

Counter height, two feet wide

The bottom door opens to the dehumidifier filter and the top door to the humidifier wick. Air enters on the left and leaves on the right, so keep about a foot clear on both sides. The water line and overflow hose come out the back.

Doors off · rear parts dashed ESP32 wick coil compr. fan air in air in dry out moist out 2 Humidifier wick stands in the tank 12 Shared reservoir about 5 gallons 1 Dehumidifier blows left to right 7 Leak probe in the drip tray 5 Controller sealed bay, above the water 6 12 V power supply 13 UV-C lamp keeps stored water clean 3 Float valve adds tap water only when low 4 Shutoff valve closed when unpowered
Fig. 2 · Inside

Dehumidifier below, humidifier above, one tank between

The dehumidifier's pump lifts its water into the shared tank, and the humidifier's wick stands in that tank. The float valve only adds tap water when the dehumidifier hasn't made enough, and extra water spills over to the drain. The electronics sit in their own bay at the top right, above the water.

Tap water, only when low Shared water Overflow Control Cold pipeunder a sink Tee valvemanual shutoff 4 · Shutoff valveclosed if power fails 3 · Float valveopens when tank is low 1 · Dehumidifierpulls water from air Built-in pumplifts it up one shelf 12 · Shared tank~5 gal, UV-C lamp 2 · Humidifierwick drinks it condensate 10 · Overflowonly when full Sink or drainby hose 8 · Bedside sensorSHT45, pillow height 5 · Controllerschedule lives here 7 · Leak probein the drip tray humidity wet = water off opens or closes power power
Fig. 3 · Water and control

One tank, two ways in, two ways out

Water reaches the tank from the dehumidifier or, when that isn't enough, from the pipe. It leaves through the humidifier's wick or, if the tank fills up, the overflow hose. A UV-C lamp under the lid keeps the stored water from growing bacteria. The shutoff valve stays closed unless the controller holds it open, so a power cut or a wet leak probe stops the tap water.

Front cut · 7 px per inch coil fan room air in drier, warmer air out room air in moister air out the top The dehumidifier pulls air in on the left and pushes it out the right. The humidifier also draws from the left, so it never breathes the dry exhaust. Bedroom humidity · 55% target humidify below 52% rest dehumidify above 58% 40%45%50%55%60%65%70%
Fig. 4 · Airflow

Bottom air goes left to right, top air goes up

The controller picks one machine or the other from the bedside reading and rests in the band between, so the two never run at once.

Sizes assume a low-profile dehumidifier that blows side to side (crawl-space style, about 20 × 12 × 13 in) and an evaporative wick humidifier about 14 × 12 × 11 in. The cabinet grows or shrinks with the exact models you pick. Prices are rough estimates, not quotes.