Looking for Advice on MVHR Systems

[Bcur]

Hi.  

Im a student in Ireland and am I completely a project on MVHR systems in homes and if they are of benefit . I would greatly appreciate any help that I could get . If I was able to find out :

 1. What type of MVHR system you have ?

2. Is your house 1 or 2 storey ?

3. Cost of installation + how long ago 

4. If you have seen any benefits so far ? 

 

If there is any more facts , figures or detail pictures that anyone could send me either that would be greatly appreciated . 
 

Thanks a lot for any help !