Ping Jethro: dehumidifiers

Aug 27, 2014 12 Replies
A

You there Jethro? Buying a dehumidifier is a regular topic in this group, and you raised it in 2013 ... reporting back on 9/12/13:


After some research, plumped for the eBac 2650e
>
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>
> Arrived on Friday. After careful reading of booklet and waiting 2 hours,
> plugged it in and set to "Auto/Normal" and put in the front room (where
> the cellar cup mushrooms were growing !). After about 8 hours it had
> pulled just under 1 litre of water.....
> .... [plus more on how things were going so far.]

I just wondered if you had anything to add, now that you're nine months further on in your ownership.


I am finally about to take the plunge on a dehumidifier, having dillied and dallied for years[1], and hence raising the topic *yet* again here.


Cheers John



[1] It's one of those things where you can pay a lot ... and therefore you're tempted to buy at the cheaper end. (Having read our discussions from previous years) it looks like ?200 is around the mark I ought to pay though.
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N

Sounds like the sort of extraction rate my similar model gives. Main drawback of cheapies is that they are a bit noisy, but not normally using them in a living room. Being a heat pump, they save you a bit of money over electric heating in the winter.

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A

They save you approximately the same amount of energy it would have taken to boil away all the water they collect (they are simply doing that in reverse and getting the energy back).

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J

Sorry, only just seen this (been "on holiday" which means SWMBO takes priority over usenet ;) )

9 months on, and we're still fans. The whole house smells fresher, and there is a distinct lack of condensation *all* around the house.

Drying washing is a plus too. Put it on boost, close room, come back next morning to dry washing with no extra condensation.

Can't really comment about running costs, and make sure you clean/change the filter.

Nice piece of UK designed and made kit, AFAICS.

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J

Sorry, only just seen this (been "on holiday" which means SWMBO takes priority over usenet ;) )

9 months on, and we're still fans. The whole house smells fresher, and there is a distinct lack of condensation *all* around the house.

Drying washing is a plus too. Put it on boost, close room, come back next morning to dry washing with no extra condensation.

Can't really comment about running costs, and make sure you clean/change the filter.

Nice piece of UK designed and made kit, AFAICS.

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J

/Jethro_uk

- show quoted text - Sorry, only just seen this (been "on holiday" which means SWMBO takes priority over usenet ;) )

9 months on, and we're still fans. The whole house smells fresher, and there is a distinct lack of condensation *all* around the house.

Drying washing is a plus too. Put it on boost, close room, come back next morning to dry washing with no extra condensation.

Can't really comment about running costs, and make sure you clean/change the filter.

Nice piece of UK designed and made kit, AFAICS/q

Ebac?

Jim K

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T

My desiccant based EcoAir DD122FW can pull about the same amount.

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N

Indeed. The only point I was making is that when I have been using it following rendering / plastering in an unoccupied house in the winter, it was often quite noticeable that the room with the dehumidifier was a bit warmer than the others (and of course that helps to it dry out a bit quicker).

The coefficient of performance won't be wonderful, but if you are using it to help dry out a damp house where you have only electric heating you might get something like 2kWh of heat for 1 kWh of electricity. If you can put up with the noise.

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S

Condenser types are more efficient - at higher temperatures. Desiccant types are (a bit) less efficient, but still work well at low temperatures. Since ours is used in the winter, & we don't heat the house all that much, we bought a desiccant type.

1kW in, 2kW out???
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A

Thanks a lot Jethro!

John

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N

Yes, why not? That would be a heat pump with a COP of 2. I havn't actually looked at the numbers but when you condense a litre of water vapour you liberate the heat which it would take to boil it. ISTR that ground source heat pumps claim a COP of ~ 3 to 4.

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R

As can the Lidl/Silvercrest 420 I have - at about £100. When Lidl deem fit to sell it :-)

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