PIV or Ebac DHR

[B-Portwood]

Hi everyone!
We get a lot of condensation so had a PIV fitted in the loft a couple of years back. It has improved condensation on the windows a bit but does make the upstairs absolutely freezing (particularly over the past week). Thus, I'm no longer convinced that flooding the house with freezing air is the way forward. Retrofitting in an MVHR system would be far too costly in a 1970s house. Thus, I'm now looking at a compromise solution and stumbled across the EBAC DHR with heat recovery: https://ebac.com/dhr
Before I make another costly mistake and install something that doesn't help, I wondered if anyone had installed one of these and how they'd got on. It looks fairly straightforward on paper and promises much better results than a PIV. But does it work!?
Thanks in advance!

 

[foxhole]

Do you have mechanical ventilation in both kitchen and bathroom and use them?. Do you dry washing in the home.

 

[hllns]

How isn't this unit just "MVHR but stick it all in the loft"?

Part of MVHR's advantage is they do extract/supply from separate locations, if you bin that a load of efficiency and advantages just go away?