| Product | Price |
| External air combustion kit (suitable for all single sided Studio cassettes and freestanding) | £169.00 |
| External air combustion kit (for Studio 2 Duplex only) | £329.00 |
| 10˚ angled flue outlet | £61.00 |
| Fan-assisted convection kit – Studio 500 | £329.00 |
| Fan-assisted convection kit – Studio 1 | £329.00 |
| Fan-assisted convection kit – Studio 2 & 3 | £329.00 |
| Smoke Control Area Kit for Studio 2 Duplex | £50.50 |
| Warm Air Ducting Kit (suitable for all Studio cassettes) | £235.00 |