Avoid at all cost. The installed unit has manufact...

Avoid at all cost. The installed unit has manufacturer's fault, confirmed by two independent engineers, but Vokera refuses to resolve the problem. They won't even honour their 5 years warranty. Shockingly rude customer service. Have never experienced anything like that. Other engineers adviced Vokera service dept is trained to treat customers such way. Do yourselves a favour and avoid them at all cost if you don't want to be left in a freezing house without the service in the middle the winter.