Retrofit house ventilation

shabbyalonso

Hi all,

A question for you please.

In summary, I live in a mid terrace 3 bed timber frame house. Heating system is in the attic by way of an air handling unit and also solar panels.
I have recently installed Eco electric radiators in all rooms as the AHU system is not great for heating (works off gas) and I want to convert attic. Next step is to have the AHU unit and piping in attic removed (but retain solar panel element) - I have a Plumber lined up to do that next week.

On the back of all this, I will need to retrofit adequate ventilation in the house. Current ventilation is via the AHU system.

I'm fairly handy about the house with most things DIY. My question is - would it be reasonable for someone (me in this case) to tackle the ventilation issue themselves? That is to say:
- Get a core drill with 4 inch bit
- Identify area of each room where I want ventilation (top corner of a room)
- As house is timber frame, drill minute holes initially to ensure I'm not going through a stud
- Cut a small hole to ensure no cables
- Once area looks good, drill 4 inch hole
- Install necessary pipe (at a slight angle I believe)
- Install necessary vent coverings, internal and external

Only issue will be ventilation for internal bathrooms, upstairs and down which are sandwiched between rooms with no wall leading to outside source. For this, I think I'll call in the expert.

Any views would be most welcome.
Thanks a mill

BryanF

I don't wish to have the air-tightness testers upon you but that is your first point of call