loading

battery operated dehumidifier ?



sort by: active | newest | oldest
lemonie5 years ago

Ask a question and you might get an answer worth your effort.
Three words and a question-mark does not a question make.

L
john53 (author)  lemonie5 years ago
Brevity is the soul of wit.
lemonie john535 years ago
Yes. Now what exactly did you want to know, it sounds like you have a damp-problem?
Where is the moisture coming from (when unoccupied)?

L
john53 (author)  lemonie5 years ago
Thanks for the detailed presentation.
The home has no power because I disconnect it from the grid when I am away.
From what you write, is more appropriate to proceed in two phases.
First I open a window on the north wall. To have natural ventilation and more day light .
If that do not have the expected performance.
Second I will put a fan to accomplish renewal of air in the space with the problem.
For power it would take the fan, I will use solar power and Inverter or 12V fan if it is available.
Ιf all fails then Ι will go to automation with dehumidifier.

Τhanks for the interest you all
lemonie john535 years ago

I was asking  where the moisture is coming from. If you have a leaky-boat you either keep the bilge-pump running or fix the leak.

If there are people breathing, washing, sweating, cooking etc. it will become humid, but why is it too moist while unoccupied?

L
john53 (author)  lemonie5 years ago
Βecause the house is very close to the sea and during winter I've been off extra moisture rainy reason.
lemonie john535 years ago

Leaving a window open isn't a good idea if the humidity is coming from outside, sealing the place-up (leaky-boat) would be a better idea.
I'm not too sure what to advise over a building that lets moisture in otherwise, but the dehumidifier would just be bailing-water, it needs fixing properly?

L
orksecurity5 years ago
Think about how a dehumidifier works -- by refrigerating/freezing moisture out of the air, which requires running a compressor. How large a battery do you think you'd need?

You might want to look at absorbant dehumidifiers instead -- silica gel and the like.
Agreed. Isn't a dehumidifer basically a modified airconditioner?

Nice thing about silica packs is that they can be regenerated by placing them in an oven to bake the captured moisture out
john53 (author)  seandogue5 years ago
Thank you for your response.
The house has no power when I am absent. But there is overmuch moisture, silica packs do not cover the period I am absent from home. So is there anything I can do that you do not have frequent surveillance?
re-silica gel packs...understood.

It's kinda tough. Unless you have some means that allows solid, natural air-flow through the home to dispel the humidity, I'm not sure there's all that much you can do. If you have the money, I suppose you could use solar or wind power to run a dehumidifier via an AC inverter, but direct battery powering seems a bit impractical, since they require a pretty hefty current source.

If the home is being "humidified" by a wet basement, perhaps using lower powered fans to draw air through the basement would help. Fans generally run on about 1/10th the power that a compressor would normally draw, so they're probably more suited to stand-alone operation via an automated battery/solar/etc system.. No matter what though, batteries alone are probably not going to do the trick, as they will drain rather quickly. And most affordable battery packs for uses like this don't like to sit around uncharged for any amount of time.

When you say the home has no power when you are not there, does that mean you power it from a generator, or that you disconnect it from the grid when away? If the former, then setting up some form of automatic power-up/down of the generator could be used, if the latter then a timed or RH sensor driven switch for the grid power could be used to fire up the dehumidifier. Beyond that, I really don't know.
john53 (author)  seandogue5 years ago
Thanks for the detailed presentation.
The home has no power because I disconnect it from the grid when I am away.
From what you write, is more appropriate to proceed in two phases.
First I open a window on the north wall. To have natural ventilation and more day light .
If that do not have the expected performance.
Second I will put a fan to accomplish renewal of air in the space with the problem.
For power it would take the fan, I will use solar power and Inverter or 12V fan if it is available.
Ιf all fails then Ι will go to automation with dehumidifier.

Τhanks for the interest you all
If your basement is leaky, check out my instructable on "waterproofing your basement for low cost" here is the link:

https://www.instructables.com/id/Waterproof-Your-Basement-for-LOW-COST/

You might try improving ventilation. That will work without any electricity because "heat rises" naturally. If a basement window was open, and the attic entrance was open... and you have some vent-turbines on the roof... then rising heat should pull air up from basement --through the house-- and out roof vents without any power. Basement window might need security bars to prevent burglars from entering or children from entering.
iceng5 years ago
A dehumidifier will need mode battery then the water collection tank.
Sorry...

A