Plan Dehumidifier Run Hours Around the Damp You Measure — Free
Running a dehumidifier all day is expensive and often unnecessary. Convert each room’s measured moisture load into the hours its extraction rate actually needs, then compare that with the run window you can live with.
The proof surface
Appliance cost strips price an appliance from its duty cycle. This converts measured damp into run hours per extraction rate, room by room, before the electricity meter decides for you.
Why the flat version breaks
Using the peak extraction rate from the label
Extraction drops as temperature falls and as humidity approaches the target level.
Running a unit in a room with an unfixed leak
If a gutter, pipe or downpipe keeps feeding the wall, extraction hours only chase the problem.
Closing the room and forgetting ventilation
A sealed damp room without airflow grows mould while the tank fills slowly.
How to work the damp extraction strip
Weigh a trial run: the litres a machine collects over three hours gives a usable daily load figure for that room. Use the tank mark or a kitchen scale on the removed water.
Use the manufacturer’s litres-per-hour figure at your typical room temperature, not the peak figure printed on the box. A small unit rated 0.8 litres an hour takes five hours for a four-litre load.
Enter the window you can tolerate for noise, heat and cost — many households cap it at eight hours overnight on a timer.
The strip sums the required hours and flags any room whose own load exceeds the whole daily window. The utility room needs 15 hours against an eight-hour window, so sealing the damp source will do more than a longer timer.
What the damp extraction strip replaces
| Question | Before | Visible working |
|---|---|---|
| Using the peak extraction rate from the label | Extraction drops as temperature falls and as humidity approaches the target level. | Check the machine’s real extraction rate |
| Running a unit in a room with an unfixed leak | If a gutter, pipe or downpipe keeps feeding the wall, extraction hours only chase the problem. | Set your maximum run hours per day |
| Closing the room and forgetting ventilation | A sealed damp room without airflow grows mould while the tank fills slowly. | Order the rooms by run hours |
A local arithmetic aid replaces hand calculation, not expert review. No paid AI service is needed.
Run it on the samples, right here
FIRST-LOAD
Input is processed locally and a draft is saved automatically in this browser profile when storage is available. Reset to sample clears that draft; Pro history has its own clear button. A state link encodes your inputs in its URL: share only non-sensitive rows. Browser history, clipboard and anyone receiving the link may retain it. Optional AI use below leaves this device; it is not required.
Moisture-load arithmetic on extraction figures you measure yourself. Not a damp survey or a mould-remediation diagnosis; consult a qualified surveyor or damp specialist about persistent moisture, structural water ingress or suspected contamination.
Data note: Everything runs in this browser tab on the damp extraction strip: your damp room | litres of moisture to remove | extraction litres per hour stays on this device, nothing is uploaded, and the reading is rebuilt only when you press run.
Go deeper: the companion app files the same reading as a paper ticker strip
The article demo above runs without limits. The companion app keeps a local history, exports the rows as CSV, prints the damp extraction strip reading, and holds your drafts on this device — one free run, then $ 4 one-time for the layer that keeps filing.
The damp extraction strip reading is complete for free. The optional $4 layer adds print, row CSV and the last five local reading summaries; it does not add hidden answers. Checkout is not configured yet; the article demo remains unlimited.
Open the plan dehumidifier run hours around the damp you measure companionBoundary
Moisture-load arithmetic on extraction figures you measure yourself. Not a damp survey or a mould-remediation diagnosis; consult a qualified surveyor or damp specialist about persistent moisture, structural water ingress or suspected contamination.
What this is built on
- Method: Enter the window you can tolerate for noise, heat and cost — many households cap it at eight hours overnight on a timer.
- All sample records are invented examples. The app does not fetch measurements, policies, files or personal records.
- Google’s official pricing page, fetched 2026-09-29, lists free-tier access including AI Studio. Optional formatting only; limits and availability can change. Free-tier content may be used to improve products. Never paste private records there.
Before: Extraction drops as temperature falls and as humidity approaches the target level. After: the damp extraction strip shows the working beside each named row so the reader can change the assumption and inspect the consequence.
Optional AI formatting, not calculation
For this damp extraction strip, use the free AI Studio interface only if available to you, with no paid API key. Manual entry completes the same workflow for free. Supply only fictional or non-sensitive notes. Review its output against the source; never paste unresolved questions into the numeric rows.
Format my non-sensitive notes for a damp extraction strip. Return plain rows only: damp room | litres of moisture to remove | extraction litres per hour. Preserve supplied quantities exactly. Do not guess missing values; list questions separately. Do not calculate or add advice. I will check every row before pasting into the local tool.
Accepted schema: damp room | litres of moisture to remove | extraction litres per hour. No AI response is executed as code.