How do you keep humidity under 70% in the UK?

anotheruser

The amount of acronyms that aren't obvious in this thread is qute amazing.

PIV?
RH?
MHRV?

Could people stop being lazy and just type out the proper wording...

shinytop

Rosa_Damascena said:

ProTofik said:

Status update, spoke to my friends and turns out 2 of them were in exactly the same situation, that is after insulating their house they started suffering from high humidity. Both invested in PIV and both say it did the magic by bringing down humidity from around 70-75% to 50% with no significant hit on house temperature. 

Anyway, I have just ordered PIV unit and it should arrive within the next 2 weeks. I will report back once I have it installed with results... 

Please do. I want the low down on this kit.

I have an old fashioned barometer that I kept safe during my recent build and you have reminded me to dig it out and hang it up again! I want to know how humid my home is now.

Just checked - humidity is 69%, its beautifully sunny outside but the barometer predicts storm. It cost £4 from a chazzer, you can't get much better value than that!

never mind all the HVAC acronyms, I had to look that up !!

BUFF

twopenny said:

Humidity in the house should be up to 60pc.

Come & live in the West of Scotland .... It is a dry sunny/blue sky day here & the humidity outdoors is 74% .... Over 80% is not uncommon.

FreeBear

anotheruser said:

The amount of acronyms that aren't obvious in this thread is qute amazing.

PIV?
RH?
MHRV?

Could people stop being lazy and just type out the proper wording...

PIV - Positive Input Ventilation

RH - Relative Humidity

MHRV - Mechanical Heat Recovery Ventilation

HVAC - Heating Ventilation Air Conditioning

robatwork

Rosa_Damascena said:

Just checked - humidity is 69%, its beautifully sunny outside but the barometer predicts storm. It cost £4 from a chazzer, you can't get much better value than that!

As I was typing "What's a chazzer" I realised you meant charity shop....other options could be a chav, someone called Chas or a nice chap

Alderbank

The amount of acronyms that aren't obvious in this thread is qute amazing.

PIV?
RH?
MHRV?

What's a chazzer

Ah, brings back fond memories of Line of Duty and the CHIS

casper_gutman

Alderbank said:

The amount of acronyms that aren't obvious in this thread is qute amazing.

PIV?
RH?
MHRV?

What's a chazzer

Ah, brings back fond memories of Line of Duty and the CHIS

Apparently "chazzer" can be a slang term for a police officer, especially a corrupt one. It comes from the Yiddish word for a pig.

All very "Line of Duty"!

Chickereeeee

twopenny said:

My bedroom window is open 75pc of the day.
The back door an hour or two.
Moisture content in the air is important to your breathing especially if you have central heating.
Humidity in the house should be up to 60pc.
Are you monitoring the air or the plaster?

I have my bedroom window open all night, always except when VERY windy (too noisy) or below -5c or so (because wife). As the CH I snot running, it's not really wasting much heat. 

The only condensation we get is on the outside of the windows, occasionally. 

digannio

A vote here for a PIV system. I moved from a house that had condensation on the windows as a virtally permanent feature to a large bungalow with a Nuaire PIV. The bungalow is virtually condensation free, there is less dust gathering, the air is fresh and cooking smells disperse quickly. It really does work. It's a bit cool (although you can adjust this on my model) just below the ceiling input unit but nothing untoward and it is pretty quiet. If we moved again I would defo have one fitted and I was fairly sceptical about the system to start with.

Gers

I had a Nuaire PIV installed in the loft just last week.  It's already made a difference to this very old stone cottage, no mains gas so no central heating, I use the wood burner when cold.  The cottage is double-glazed throughout and I habitually have the front door open when the weather permits even when cold outside. 

The smell of damp is gone.  No condensation, no noise.  Because of the structure of the place the unit had to be installed right outside ( meant above) the master bedroom but there's no problem.  Nuaire says the unit costs 1p an hour to run, of course that is relative though I don't expect it to be a huge lot more.  For me, well worth the investment.