Dehumidifier

Eldi_Dos

QrizB said:

Eldi_Dos said:

... whether they fully uncoil it or only run it out enough to reach the portable appliance?

Depends on the load, in accordance with the rating marked on the lead.

Eldi_Dos said:

So the bathroom is not hermetically sealed when the dehumidifier is in use, so why not not leave it in the hallway with the door ajar.

Because mass transfer doesn't work that way.

With the dehumidifier in the bathroom and the door closed, you can direct the exhaust from the dehumidifier directly at the laundry and also you are mostly reducing the humidity in a smaller volume of air (the bathroom, rather than the bathroom and the hall).

Pount 1; Correct 10 out of 10, shows you were listening to some electrical safety advice.

Point 2; Is that not just Hot Air?
             According to Avogadros Law humid air is lighter than dry air so the drier air would come in under the gap                 in the door, but you could check that out with your Safety Officer before your next appraisal and let us                       know how you get on. 

Scot_39

I use my refrigerant / compressor model largely in spare bed room / hall / kitchen het to 14/15 C max in winter, its expensive to heat unoccupied spaces hotter by electric heating.  My living room more like 16/17 for comfort - with an extra clothing layer (and no I don't mean down coat and skiing trousers).

I dont especially remember mine spending a lot of time defrosting - it does have a warning light to let you know it's in that mode - but then I dont watch it that closely these days - just put the timer on - and set mode to continuous given the short (2 hr runs I use mine on) (rather than 60/50/40 % modes).

I've been away for days in winter - and come back to temps in the 10-12C range - without any or only minimal heating left on.

This from the Maeco blog might be of interest to you - as they bring model size into the equation too

https://blog.meaco.com/when-to-buy-a-desiccant-dehumidifier-and-when-to-buy-a-compressor-dehumidifier/

"As a rule of thumb we would always recommend a desiccant dehumidifier if the room temperature is below 10°C, a desiccant dehumidifier or a large compressor dehumidifier (either a 20L or 25L) if the room temperature is between 10°C and 15°C and any type of dehumidifier, including a small compressor dehumidifier (10L or 12L), if the room temperature is above 15°C."

One of the answers on that page actually says in theory the compressor models can run down to 5C - but at of course reduced efficiency - so maybe 10C the safer threshold.

The problem is a big brand 20l model is 2.5-3x a budget 10-12l model. And comparible with a small desiccant iirc. Its a lot of extra cash to find - it the smaller model will do the job.

If the room is 17C whilst occupied during the day - and you get a quiet model - I'd try the smaller sized model - many run them in bedrooms overnight - or run just as go to bed and room still hotter from being occupied in evening - if that the nature of the 13-17C cycle.

If you are thinking of both getting one - why not maybe buy one you think will suit your warmer home - if that is say you think a smaller 10l / 12l model will do you - and try in her's first - and then you take that on for your warmer property if it's not good enough - and then she spends the extra only if she really needs it.

Dont forget the HEPA filters add expense if go for one of Maeco's dual mode refrigerant with purifier modes (Although I think read the can be run without - any owner got one and can confirm true ???)

masonic

Mine is only a 10L model, so maybe that's why the performance isn't good close to 10 degC. But besides the extra cost, I wouldn't want the bigger footprint of the large one. One of each type works well for me.

masonic

Eldi_Dos said:

QrizB said:

Eldi_Dos said:

... whether they fully uncoil it or only run it out enough to reach the portable appliance?

Depends on the load, in accordance with the rating marked on the lead.

Eldi_Dos said:

So the bathroom is not hermetically sealed when the dehumidifier is in use, so why not not leave it in the hallway with the door ajar.

Because mass transfer doesn't work that way.

With the dehumidifier in the bathroom and the door closed, you can direct the exhaust from the dehumidifier directly at the laundry and also you are mostly reducing the humidity in a smaller volume of air (the bathroom, rather than the bathroom and the hall).

Pount 1; Correct 10 out of 10, shows you were listening to some electrical safety advice.

Point 2; Is that not just Hot Air?
             According to Avogadros Law humid air is lighter than dry air so the drier air would come in under the gap                 in the door, but you could check that out with your Safety Officer before your next appraisal and let us                       know how you get on. 

In practice distance from the dehumidifier and total air volume make a large impact on drying time. That's why I dry my laundry in the landing at the top of the stairs with all doors closed. With an additional fan to improve air circulation.

Even then stuff needs moving around as the area near the exhaust is the prime drying territory.

Eldi_Dos

Emmia said:

Eldi_Dos said:

Emmia said:

Eldi_Dos said:

Swipe said:

Scot_39 said:

And you dont have to be using the bath or shower - for the pipework to spring a leak - and risk flowing all over an unattended electrical extenion lead socket and plug.

I guess that rules out using them in utility rooms and kitchens then

Extension leads yes I would agree, especially  if left for a length of time.

It would be interesting to hear from those who do use a extension lead for what we are discussing whether they fully uncoil it or only run it out enough to reach the portable appliance?

Fully uncoiled.

Sorry that was a bit of a low blow, as you can be criticised whatever the answer.

In fairness the lead is not left out, and the dehumidifier is not left in the bathroom when not in active use.

You do know that if you move a compressor type dehumidifier you are meant to leave it for a couple of hours before switching on.

Swipe

Eldi_Dos said:

Emmia said:

Eldi_Dos said:

Emmia said:

Eldi_Dos said:

Swipe said:

Scot_39 said:

And you dont have to be using the bath or shower - for the pipework to spring a leak - and risk flowing all over an unattended electrical extenion lead socket and plug.

I guess that rules out using them in utility rooms and kitchens then

Extension leads yes I would agree, especially  if left for a length of time.

It would be interesting to hear from those who do use a extension lead for what we are discussing whether they fully uncoil it or only run it out enough to reach the portable appliance?

Fully uncoiled.

Sorry that was a bit of a low blow, as you can be criticised whatever the answer.

In fairness the lead is not left out, and the dehumidifier is not left in the bathroom when not in active use.

You do know that if you move a compressor type dehumidifier you are meant to leave it for a couple of hours before switching on.

That's only if you fail to keep it upright, which is why many are on castors. 

Eldi_Dos

Swipe said:

Eldi_Dos said:

Emmia said:

Eldi_Dos said:

Emmia said:

Eldi_Dos said:

Swipe said:

Scot_39 said:

And you dont have to be using the bath or shower - for the pipework to spring a leak - and risk flowing all over an unattended electrical extenion lead socket and plug.

I guess that rules out using them in utility rooms and kitchens then

Extension leads yes I would agree, especially  if left for a length of time.

It would be interesting to hear from those who do use a extension lead for what we are discussing whether they fully uncoil it or only run it out enough to reach the portable appliance?

Fully uncoiled.

Sorry that was a bit of a low blow, as you can be criticised whatever the answer.

In fairness the lead is not left out, and the dehumidifier is not left in the bathroom when not in active use.

You do know that if you move a compressor type dehumidifier you are meant to leave it for a couple of hours before switching on.

That's only if you fail to keep it upright, which is why many are on castors. 

But I would posit that many when moving a dehumidifier will use two hands, one on the carryhandle and one on the base of dehumidifier, to help spread the load.

RedFraggle

Eldi_Dos said:

Emmia said:

Eldi_Dos said:

Emmia said:

Eldi_Dos said:

Swipe said:

Scot_39 said:

And you dont have to be using the bath or shower - for the pipework to spring a leak - and risk flowing all over an unattended electrical extenion lead socket and plug.

I guess that rules out using them in utility rooms and kitchens then

Extension leads yes I would agree, especially  if left for a length of time.

It would be interesting to hear from those who do use a extension lead for what we are discussing whether they fully uncoil it or only run it out enough to reach the portable appliance?

Fully uncoiled.

Sorry that was a bit of a low blow, as you can be criticised whatever the answer.

In fairness the lead is not left out, and the dehumidifier is not left in the bathroom when not in active use.

You do know that if you move a compressor type dehumidifier you are meant to leave it for a couple of hours before switching on.

I'm guessing I get zero points for keeping it in the unused bathroom though 😉.
Is it actually a bathroom though? The door's shut and I can't see in. It was a bathroom but what if a subatomic event has removed the bath, basin and loo and it's an empty room now. 
I'll check with Schrödinger before I open the door. Or maybe send the cat in. 

Emmia

Swipe said:

Eldi_Dos said:

Emmia said:

Eldi_Dos said:

Emmia said:

Eldi_Dos said:

Swipe said:

Scot_39 said:

And you dont have to be using the bath or shower - for the pipework to spring a leak - and risk flowing all over an unattended electrical extenion lead socket and plug.

I guess that rules out using them in utility rooms and kitchens then

Extension leads yes I would agree, especially  if left for a length of time.

It would be interesting to hear from those who do use a extension lead for what we are discussing whether they fully uncoil it or only run it out enough to reach the portable appliance?

Fully uncoiled.

Sorry that was a bit of a low blow, as you can be criticised whatever the answer.

In fairness the lead is not left out, and the dehumidifier is not left in the bathroom when not in active use.

You do know that if you move a compressor type dehumidifier you are meant to leave it for a couple of hours before switching on.

That's only if you fail to keep it upright, which is why many are on castors. 

Ours is on castors, and wheeled, not lifted (it's too heavy really for that). It doesn't go up or downstairs, it moves from its storage position into the "in use" position. 

So moved in a way it is designed for.

EssexHebridean

Eldi_Dos said:

Swipe said:

Eldi_Dos said:

Emmia said:

Eldi_Dos said:

Emmia said:

Eldi_Dos said:

Swipe said:

Scot_39 said:

And you dont have to be using the bath or shower - for the pipework to spring a leak - and risk flowing all over an unattended electrical extenion lead socket and plug.

I guess that rules out using them in utility rooms and kitchens then

Extension leads yes I would agree, especially  if left for a length of time.

It would be interesting to hear from those who do use a extension lead for what we are discussing whether they fully uncoil it or only run it out enough to reach the portable appliance?

Fully uncoiled.

Sorry that was a bit of a low blow, as you can be criticised whatever the answer.

In fairness the lead is not left out, and the dehumidifier is not left in the bathroom when not in active use.

You do know that if you move a compressor type dehumidifier you are meant to leave it for a couple of hours before switching on.

That's only if you fail to keep it upright, which is why many are on castors. 

But I would posit that many when moving a dehumidifier will use two hands, one on the carryhandle and one on the base of dehumidifier, to help spread the load.

I would suggest that you are wrong. Not only have I (in 20 years or so of dehumidifier use) never moved one in that way (indeed - it wouldn't even occur to me to do so) I have seen a reasonable number of people move theirs, and never seen any of them do such a ludicrous thing, either.

It feels like you are now grasping at straws in order to bolster your perceived position on the moral high ground and keep this thread running with ever thinner arguments. You've used "scare statistics" without any form of context - and indeed, in a way that was designed to make it seem that they were something (UK figures) they were not. You've referred to "safety appraisals" which suggests that you are conflating what must be done in an industrial setting with what most people would do in a home setting. Quite honestly, if you are the sort of person that would tip a dehumidifier onto its side to move it, then I would very much suggest that you personally should continue to follow every single rule to the Nth degree, too - it's probably best, in your case.