| Type | Index number | Status |
|---|---|---|
| Centralised MEV and MVHR systems | 500564 | Normal |
| Brand | Model name | Model qualifier |
| Johnson & Starley | Q-VENT MEZZO | |
| System type | balanced whole-house mechanical ventilation with heat recovery | |
| Duct type | rigid | |
| Minimum duct size | 125 mm diameter or 204 x 60 rectangular or larger | |
| Original manufacturer name | Johnson & Starley Ltd | |
| Current manufacturer name | Johnson & Starley Ltd | |
| Manufacturer address |
Rhosili Road Brackmills Northampton NN4 7LZ |
|
| Manufacturer phone | 01604 762881 | |
| Manufacturer website | www.johnsonandstarleyltd.co.uk | |
| First year of manufacture | 2018 | |
| Final year of manufacture | current | |
| Summer bypass | no | |
| Integrated to exhaust air heat pump | No | |
| Entry updated | 25/05/2018 08:09 | |
| K+n wet rooms | SFP (W/l/s) [2009] | Efficiency (%) [2009] | SFP (W/l/s) [2012] | Efficiency (%) [2012] | SFP (W/l/s) [10] | Efficiency (%) [10] |
|---|---|---|---|---|---|---|
| n = 1 | 0.71 | 88% | 0.72 | 88% | 0.72 | 88% |
| n = 2 | 0.69 | 88% | 0.83 | 85% | 0.83 | 85% |
| n = 3 | 0.77 | 85% | 1.02 | 83% | 1.02 | 83% |
| n = 4 | 0.91 | 84% | 1.27 | 81% | 1.27 | 81% |
| n = 5 | 1.06 | 83% | - | - | - | - |
| n = 6 | 1.27 | 81% | - | - | - | - |
| n = 7 | 1.52 | 80% | - | - | - | - |
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