We've just moved into a 1930's 3 bed Semi detached house that has a fair bit of condensation.
The bathroom had no extraction fan and at the recommendation of several damp surveys and the original surveyor we've had a Vent Axia Centrif Duo unit put into the bathroom (installed yesterday). Prior to this going in, if the two of us had a shower each in the morning, the whole bathroom would be sopping wet, with the walls covered in water (waterproof paint, so the walls cannot breathe). With the addition of the fan, which runs on a trickle setting all the time and uses its boost when the light switch is turned on, it manages the steam in the room brilliantly, and whereas before the room would be wet (note, not damp!), the walls are dry and the window condensation disappears within 20 minutes of the light being turned off (trickle setting clears most of this up, as the boost is only on for 2 minutes after the light is turned off).
Similar scenario in the kitchen. There was an extraction hood, but it was not hooked up to extract the air outside, so it just made a lot of noise and circulated the air within the room. Now that is working too, so less condensation and moist air in the kitchen when cooking.
The issue I have is that I didn't realise how good these fans would be, but we've also not had a really cold morning this morning like we did last week, when I agreed to put in a Drimaster 2000 unit too which would help the other rooms. The master and third bedroom (box room) have air brick vents in them which currently let loads of cold air in, particularly noticeable overnight. The damp guy who came and recommended that rather than replace them with valved one way vents we should consider a drimaster 2000 unit which would create the positive pressure we need to expel the stale air. I'm happy with the idea of the unit etc and have read the pro's and con's, but with the more powerful Vent Axia humidity controlled extractor fan in the bathroom will the two be overkill?
I know the bathroom is now ok, but I don't know about the rest of the house. I know there are higher damp meter readings in the hallway/staircase, and have been warned about mould due to condensation in those places so thought the Drimaster would still be a good addition for this purpose.
Finally, would we be good to turn off the trickle on the Vent-Axia fan in the bathroom otherwise presumably the Drimaster air will just seek the bathroom?
EDIT: It may also be worth noting, we have a mix of new and old double glazing, as well as some single pane glazing. The house has no cavity, and is solid brick construction.
The bathroom had no extraction fan and at the recommendation of several damp surveys and the original surveyor we've had a Vent Axia Centrif Duo unit put into the bathroom (installed yesterday). Prior to this going in, if the two of us had a shower each in the morning, the whole bathroom would be sopping wet, with the walls covered in water (waterproof paint, so the walls cannot breathe). With the addition of the fan, which runs on a trickle setting all the time and uses its boost when the light switch is turned on, it manages the steam in the room brilliantly, and whereas before the room would be wet (note, not damp!), the walls are dry and the window condensation disappears within 20 minutes of the light being turned off (trickle setting clears most of this up, as the boost is only on for 2 minutes after the light is turned off).
Similar scenario in the kitchen. There was an extraction hood, but it was not hooked up to extract the air outside, so it just made a lot of noise and circulated the air within the room. Now that is working too, so less condensation and moist air in the kitchen when cooking.
The issue I have is that I didn't realise how good these fans would be, but we've also not had a really cold morning this morning like we did last week, when I agreed to put in a Drimaster 2000 unit too which would help the other rooms. The master and third bedroom (box room) have air brick vents in them which currently let loads of cold air in, particularly noticeable overnight. The damp guy who came and recommended that rather than replace them with valved one way vents we should consider a drimaster 2000 unit which would create the positive pressure we need to expel the stale air. I'm happy with the idea of the unit etc and have read the pro's and con's, but with the more powerful Vent Axia humidity controlled extractor fan in the bathroom will the two be overkill?
I know the bathroom is now ok, but I don't know about the rest of the house. I know there are higher damp meter readings in the hallway/staircase, and have been warned about mould due to condensation in those places so thought the Drimaster would still be a good addition for this purpose.
Finally, would we be good to turn off the trickle on the Vent-Axia fan in the bathroom otherwise presumably the Drimaster air will just seek the bathroom?
EDIT: It may also be worth noting, we have a mix of new and old double glazing, as well as some single pane glazing. The house has no cavity, and is solid brick construction.
