Yes, all installers qualify for the 10 year warranty. The InTouch system is about £150 extraIs the 10 year guarantee valid if any GasSafe man fits these combis? A neighbour is wanting to change her troublesome 15 year old Potterton combi, however is leaning towards 10 year guarantees. It needs a wireless thermostat, with the RF having this integral that is an advantage. The RF I believe only works seamlessly with a Honeywell wireless stat. Also is the Smart Phone control function built into this model, or is that extra?