The Viessmann 300-TM is their new evacuated tube collector.
There are two sizes available 12 tube/1.51sqM and 24 tube/ 3.03sqM collector
Full technical spec is on the attached pdf and we can email a full installation manual upon request.
As the roof fixing options for Viessmann are very complex it is impossible to list all the variants here.
Please contact us for prices for bespoke systems.
In order to make things as simple as possible we already offer full kits in all the popular sizes
Follow this link to see our solar kit options https://www.seconsolar.com/viessmann-vacuum-tube-kits-729-c.asp