Anyone retrofitted a central vacuum system to their house?

brightontraveller

Very basic Air in air out, hvac, heat recovery, vaccum systems such as yours sounds can add to the imbalance things like SBS, THS, problems with fires, gas appliances etc… These may assist in understanding it more some of its bull, some open to interpretation. when people install alot of these types of systems hvac, heat recovery, vaccum systems etc they say its "signed off" etc often that actually means the fitters said " its safe " is the reality ...



http://www.waptac.org/data/files/website_docs/training/standardized_curricula/curricula_resources/Tooley_Pressure%20Balancing%20a%20House%20and%20Mad-Air.pdf

http://www.pureairplus.com/nap.htm

http://www.energyvanguard.com/blog-building-science-HERS-BPI/bid/54084/Why-I-m-Not-a-Fan-of-Positive-Pressure-Mechanical-Ventilation

[FONT=&quot]https://books.google.co.uk/books?id=0wUEdHBbvlYC&pg=PA78&lpg=PA78&dq=negative+and+positive+air+pressure+with+homes&source=bl&ots=fjQLpbSo5_&sig=6t1vOdrCI_zzhyp_9k3sg8EFWyQ&hl=en&sa=X&ved=0CD4Q6AEwBTgKahUKEwjNno3TnvLGAhWLjtsKHYKqBkU#v=onepage&q=negative and positive air pressure with homes&f=false[/FONT]

jackyann

I have found this conversation interesting, but have to say that I personally don't recognise any of the issues raised, including those in the links that brightontraveller kindly posted.

Our mechanical heat recovery system works very well, drawing in fresh air. It needs new filters about every 9 months, costing about £90, but even so, heating bills are low, and the house feels very comfortable, both for warmth & air quality.

I hope that this has been of use to others, and should make it clear that I write only from my own experience, in one self build, 3-4 years in.