BRILLIANT…we now can heat a HUGE orangery to 10c with a 7.5kw air to air heat pump rather than four 3kw ‘Green-house’ fan heaters, The thermostats on the fan heaters were hopeless, still pumping out heat at +12c and sometimes not engaging before 6c! The thermostat on the air pump is so much better! The site was surveyed and the fitting arranged, promptly…we could not have asked for more!