Drimaster Experiences

nxdmsandkaskdjaqd

iamcornholio wrote: »

The logical explanation is that condensation is caused by the occupants and not the property

Same house next door, same number of occupants. Next door no problem. Yet we have the problem.

iamcornholio

nxdmsandkaskdjaqd wrote: »

Same house next door, same number of occupants. Next door no problem. Yet we have the problem.

No you don't understand, its not the amount of occupants, but how the occupants live.

More correctly described as a "lifestyle issue".

marshallka

nxdmsandkaskdjaqd wrote: »

Do you have any idea as to how much extra this is costing you in terms of heating? The fact that unit blows cold are into the warm house.

Have no idea TBH but only a little I would say. If you think about it before I was heating up a damp house!!

2Sheds

iamcornholio wrote: »

No you don't understand, its not the amount of occupants, but how the occupants live.

More correctly described as a "lifestyle issue".

The picture I posted the other day, we did not cook anything major in the kitchen, no one had a shower or bath, the central heating gas/radiators via combine boiler was on in the evening

The drimaster was on setting 4 and 2 windows in one bedroom of the 2 top bedrooms had a lot of condensation.

Neighbours over the road 2 more people in the same house and 2 bathrooms to our 1, no condensation !

They even commented on seeing me wiping down the windows every morning in the winter.

iamcornholio

2Sheds wrote: »

The picture I posted the other day,

<..... etc>

Every single property, even those of similar construction experience different conditions due to different location, different passage of sun/wind/rain/shade, different facing elevations etc

Combine this with totally different usage patterns from each individual occupant, and you get a situation were no property experiences exactly the same conditions.

It can only take 1/2 a degree difference in temperature at any time of day, or a few extra % of humidity from from a boiled kettle or bathing and this is enough to tip the balance between condensation or clear windows

I've never known a possitive pressure system such as the drimaster not to work under normal conditions. If the required exit vents are fitted, and extract fans are fitted to bathrooms and kitchens then it should work.

However, they will not work if the occupants continue to produce excessive amounts of moisture vapour. The drimaster is not a magical panacea and requires some change of lifestyle to reduce whatever humidity is being produced within the household, if it is to work

You say that you heating was on in the evening. On-off heating is one of the best ways to ensure that condensation forms every time the rooms cool. You need to maintain a more even temperature within the property

nxdmsandkaskdjaqd

Am I correct that this Drimaster product is no more than a small fan with a speed controller that pushes cooller air from the loft into the house?

dampdaveski

Hi nx,
1stly Iamcorn talks a lot of sense and I couldn't have put his last post better.
there is a bit more to a drimaster or any of the positive input fans that are available out there, but essentially that is what they do.
I'm not going to start selling the benefits of a drimaster or any of the competitors fans.
however as this threadis all about the Nuaire system I suggest you have a look at the nuaire site
click on the download bit that says

Brochure:
http://www.nuaire.co.uk/catalogue/3-PIV.pdf
File size: 2.6 MB

you can also try the envirovent page
http://www.homeventilation.co.uk/PIV-loft-mounted-unit.php
however be warned- if you want to buy an envirovent unit as a homeowner you'll probably be put onto a franchisee, who has an 18k investment to get back!, draw your own conclusions!
MAKE SURE YOU GET PRICES ON MORE THAN ONE SYSTEM!!!
Both fans are good and will help, neither are paticularly any better than the other
Hope this helps
DD

gary38uk

nxdmsandkaskdjaqd wrote: »

I want to know if anyone had used these units and what their experience was?

http://www.nuaire.co.uk/Product/Residential_Products/Positive_Input_Ventilation/Drimaster_2000

Robert

YES had one for last 4+ years, just now got a new one as it stopped working, nuaire sent out another unit FREE as still under 5 years.
YES it works. Had severe condensation problems really since having the double glazing.
of course they work, as condensation is caused by trapped wet air.
Only drawbacks are when it is cold it does make house colder.
But that’s the reason for the condensation warm air holds more water. so in the winter i turn the unit down to get a compromise between hot house with condensation or cold house with no condensation.
In conclusion i think it has reduced the condensation 50 - 75 %.
Still get some on bottom of windows, in bathroom.
And of course drying clothes indoors does not help. Not much choice in winter.

gary38uk

nxdmsandkaskdjaqd wrote: »

Do you have any idea as to how much extra this is costing you in terms of heating? The fact that unit blows cold are into the warm house.

hot air rises, so in theroy the drimaster pushes this air back down as where before it was just going through the roof.
and it takes more to heat damp wet air
really hard one to really prove?
but i would say heating costs are no more. just makes the place a bit cooler, same heating costs and less condensation.

quietheart

Can anyone tell me who does this sort of work/maintenance?
I've had condensation in the roof space, improved but not cured by vents but the whole house has high humidity levels (70-90 rh).
It's a brick link detached. We use a dehumidifier and open windows for a bit each day.
Would it be a roofing company or a damp company I'd contact? Specifically I'd like someone to go round the roof space and move the insulation away from edges etc.
I'm considering a drimaster but am concerned at the cost if it might not solve the problem, also worried it will be draughty/noisy.
Thanks:o