humidity

[highwood122]

i have a weinsberg 7 mtr. A class. its parked in a dry tin shed, no heating. this time of year i switch on a meano dehumidifier once or twice a week and it finds 2 litres of water every time.all the windows and doors are shut and they seem to fit well the van has been driven through torrential downpours with no water ingress. do any of you have similar experience or think this normal or not

 

[Richard n Ann]

i have a weinsberg 7 mtr. A class. its parked in a dry tin shed, no heating. this time of year i switch on a meano dehumidifier once or twice a week and it finds 2 litres of water every time.all the windows and doors are shut and they seem to fit well the van has been driven through torrential downpours with no water ingress. do any of you have similar experience or think this normal or not

Vans are always ventilated even with the roof down and everything closed, otherwise you'd suffocate. I wouldn't worry about it.

 

[L' Hobo]

i have a weinsberg 7 mtr. A class. its parked in a dry tin shed, no heating. this time of year i switch on a meano dehumidifier once or twice a week and it finds 2 litres of water every time.all the windows and doors are shut and they seem to fit well the van has been driven through torrential downpours with no water ingress. do any of you have similar experience or think this normal or not

Perhaps you need to air your shed more, that seems an awful lot of water, if I had that, I would be looking for a leak somewhere?
My PVC is parked outside, in all weathers, and used often.

It might be interesting if you did the same and then measured the results?

During the winter, most of the time, mine is parked up on the spare ground beside the house and only used for daily outings a couple of times a fortnight BUT should I wish to stay longer, I just throw my sleeping bag in and go.
Leaving the window open slightly until I get to my destination, by which time, everything is good to use.

To be honest, checking for dampness in my Murvi has never occurred to me although there has been some dampness around the skylight and one window, that I have repaired.

 

[Just smiffy]

Your taking moisture out of the atmosphere, there are air vents in the motorhome and your just drawing in moisture from outside…
Personally I think you just wasting money on electricity…. Plenty of new vans on dealers forecourts with no problems…

 

[Podney]

Unless your shed is airtight,you are dehumidifying the outside world!!! You don’t need to use a dehumidifier unless you’ve had a leak in the van and need to dry it out.
Just smiffy beat me to it.

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[BouncyBoatFolk]

i have a weinsberg 7 mtr. A class. its parked in a dry tin shed, no heating. this time of year i switch on a meano dehumidifier once or twice a week and it finds 2 litres of water every time.all the windows and doors are shut and they seem to fit well the van has been driven through torrential downpours with no water ingress. do any of you have similar experience or think this normal or not

Your trying to dehumidify the worlds atmosphere. No van is air tight,which it shouldn't be, the atmospheric air will just get replaced by more moisture filled air. Get a couple of very cheap temperature/moister meter off Ebay [ [ £3.00] They will more or less mirror what's happen inside and out. They will vary between 40% up to 80/90 %. Opening the doors and air vents is the key, get that through flow of air. There are many theories on your question, others will have diametrically opposed views
Mike.

 

[highwood122]

Your taking moisture out of the atmosphere, th the dehumidifyerere are air vents in the motorhome and your just drawing in moisture from outside…
Personally I think you just wasting money on electricity…. Plenty of new vans on dealers forecourts with no problems…

my previous van which i had for 21 years,kept in same shed,started to show black mould on the hab side of the bathroom door in the early days hence the dehumidifyer, it cured the problem. dont want the same with new van. i do know other people that have mould problems when their van is left standing in winter how they counteract it i dont have a clue

 

[denisejoe]

Stop using the dehumidifier how many do you see at dealers my be there is not enough airflow in shed

 

[PP Bear]

Worth reading

Tips for preventing condensation in a motorhome.

This morning my campervan had loads of condensation in the windows. I'm sure there must be loads of ways of managing this. I don't store it with hook up so I can't run a dehumidifier. What else can I do?

www.motorhomefun.co.uk

UniBond Aero 360 Pure Moisture Absorber Dehumidifier

Buy the UniBond Aero 360 Pure Moisture Absorber Dehumidifier at Robert Dyas online. Free Click & Collect on this product or Free Standard Home Delivery when you spend over £30

www.robertdyas.co.uk

Lost use the Unibond moisture absorber. No need for leccy and will only absorb moisture from inside the van. Been using it for 12 years now and it’s very good.

 

[L' Hobo]

my previous van which i had for 21 years,kept in same shed,started to show black mould on the hab side of the bathroom door in the early days hence the dehumidifyer, it cured the problem. dont want the same with new van. i do know other people that have mould problems when their van is left standing in winter how they counteract it i dont have a clue

IMO, the easiest way to overcome this problem (not that I have ever had it in this van, (only in one of my VW that I had in storage, unused for a year)
Is to use/drive it for, at least an hour, with the window cracked open, once a fortnight, 12 months a year.
Go for a ride in the countryside/seaside, and have a cuppa!

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[Pausim]

A dehumidifier is useful if you have a flood and are trying to dry out carpets or walls. It dries the air allowing it to absorb moisture from the damp materials. However if you have a dry van you are just sucking moisture out of the atmosphere and when you turn it off the the air circulation from outside will have the same moisture level as before.

 

[HugoBNB]

Your tin shed, particularly if it is not insulated, could actually be the problem here. When it is cold, your shed, and MH will fall to the same ambient levels of temperature and relative humidity. However, when the sun comes out, the tin shed will heat the air up faster than it can heat the air and surfaces inside the motorhome. The warmer air in the shed will migrate towards the colder surfaces of the MH where condensation and mould will probably form. You see it a lot with water dripping onto goods in containers. Try insulating, or venting the tin shed would be my suggestion.

 

[Otter Spotter]

For your own comfort and to solve your problem fit a Maxxfan, it lets air circulate even when closed. Air needs to circulate inside the van.

 

[Richard n Ann]

I've got a dehumidifier in the bike shed, it switches off if the humidity falls below 60% so it doesn't try and dry below ambient levels, just if the bikes are wet.

 

[Just smiffy]

my previous van which i had for 21 years,kept in same shed,started to show black mould on the hab side of the bathroom door in the early days hence the dehumidifyer, it cured the problem. dont want the same with new van. i do know other people that have mould problems when their van is left standing in winter how they counteract it i dont have a clue

As others have mentioned it’s the shed that’s probably the problem, lack of airflow around the van…

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[Smudger55]

This topic interests me. Condensation and humidity to me are different, not that anyone has said otherwise. I can get the humidity reading of our Mhome from our control panel and in this damp weather it can read into the 90s but on days like to open doors and windows is pointless as the atmosphere outside is the same. I have a damp meter and all is ok inside even though the heating is rarely on when parked up at home. Management has different "thoughts" but I "strive"to suggest to her all is ok. Obviously when the air drys, I open for a draft and humidity drops.

We only get condensation when sleeping in van on windscreen if we haven't put thermal cover on, but that is soon wiped off when it happens.

I think I am dealing with things properly and annual habitation checks, 4 so far have been fine. I therefore don't bother with any other sort of device to deal with humidity.

Just thought I'd share how I deal with it.

 

[Pausim]

This topic interests me. Condensation and humidity to me are different, not that anyone has said otherwise. I can get the humidity reading of our Mhome from our control panel and in this damp weather it can read into the 90s but on days like to open doors and windows is pointless as the atmosphere outside is the same. I have a damp meter and all is ok inside even though the heating is rarely on when parked up at home. Management has different "thoughts" but I "strive"to suggest to her all is ok. Obviously when the air drys, I open for a draft and humidity drops.

We only get condensation when sleeping in van on windscreen if we haven't put thermal cover on, but that is soon wiped off when it happens.

I think I am dealing with things properly and annual habitation checks, 4 so far have been fine. I therefore don't bother with any other sort of device to deal with humidity.

Just thought I'd share how I deal with it.

I agree condensation and humidity are different. Humidity is water vapour in the air and condensation is liquid that has condensed onto a surface. I also think you are right to be cautious about heating, warm air holds more moisture than colder air so when it cools it can cause condensation.

 

[nicholsong]

We live in Poland. MH has been parked for 12 years under a roof, no side walls.

We leave all cushions, bedding, clothes inside inside. We do not heat, humidify, nothing. We have no damp, no moisture, no condensation.

I personally cannot understand the problem.

 

[poppycamper]

We live in Poland. MH has been parked for 12 years under a roof, no side walls.

We leave all cushions, bedding, clothes inside inside. We do not heat, humidify, nothing. We have no damp, no moisture, no condensation.

I personally cannot understand the problem.

Agree.... said it many times in the past...
The dehumidifier is causing problem by over drying inside of van then the two weeks dehumidifiers is off the van is sucking damp air from outside back into van....... therefore a vicsious circle....
Even if dehumidifiers was left on, as others have said you are just dragging moist air into van..