sonicboom Posted yesterday at 18:01 Share Posted yesterday at 18:01 My property has a floor area of 100m2, and volume of approx 480m3. I have a PIV and before the air tightening noticed about 35l/s is more than enough for the property. The question I would like to ask is, how do I select the proper size unit. I was thinking of going for a Brink Flair 450 but not sure if that'll be enough. Link to comment Share on other sites More sharing options...
JohnMo Posted yesterday at 18:04 Share Posted yesterday at 18:04 1 minute ago, sonicboom said: My property has a floor area of 100m2, and volume of approx 480m3. I have a PIV and before the air tightening noticed about 35l/s is more than enough for the property. The question I would like to ask is, how do I select the proper size unit. I was thinking of going for a Brink Flair 450 but not sure if that'll be enough. 4.8m tall rooms, is that correct? How airtight is your house? Link to comment Share on other sites More sharing options...
sonicboom Posted yesterday at 18:10 Author Share Posted yesterday at 18:10 5 minutes ago, JohnMo said: 4.8m tall rooms, is that correct? How airtight is your house? Sorry, 2 floors, each 2.4m. Link to comment Share on other sites More sharing options...
SteamyTea Posted yesterday at 18:12 Share Posted yesterday at 18:12 10 minutes ago, sonicboom said: volume of approx 480m3. I have a PIV and before the air tightening noticed about 35l/s is more than enough for the property That is about 0.25 ACH. As @JohnMo says, how leaky is the rest of the building. Link to comment Share on other sites More sharing options...
sonicboom Posted yesterday at 18:27 Author Share Posted yesterday at 18:27 Sorry, missed @JohnMo airtightness question - long day. Its extremely air tight, to the point the PIV is not really working any more. Link to comment Share on other sites More sharing options...
Nickfromwales Posted 21 hours ago Share Posted 21 hours ago 3 hours ago, sonicboom said: Sorry, missed @JohnMo airtightness question - long day. Its extremely air tight, to the point the PIV is not really working any more. Respectfully, you need to do a test and get the results. If it’s worse than you think then maybe a 450 won’t do it, if it’s much better (sub 1.0 ACH) then the 450 may suffice. That said I’d still go for a 600 if you’re not counting every penny Link to comment Share on other sites More sharing options...
Iceverge Posted 21 hours ago Share Posted 21 hours ago How many people in the house? BALLPARK numbers here..... 30m³ per person per hr, normal flow rate for an MVHR unit is about 30% So if a Brink 450 is I assume 450m³/hr in a nominal setup then it'll do 4.5 people. If you have 6 people get a Brink 600 (if even such a thing exists). Link to comment Share on other sites More sharing options...
Eric Posted 20 hours ago Share Posted 20 hours ago 12 minutes ago, Iceverge said: If you have 6 people get a Brink 600 (if even such a thing exists). It does exist , I have one 1 Link to comment Share on other sites More sharing options...
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