I bought a house where Bryan's has installed a 20k Geothermal Unit, according to them, top of the line. The unit keeps breaking down in the winter at -20 Celsius and in the summer at +40 Celsius. Bryan's has done the heat loss calculation and designed the whole heating/cooling system. The "top of the line" unit does not keep up with any of the temperature changes, be it winter or summer, that's when it is working, because most times doesn't even work.
In less than a year, I have made 5 service calls to have no heat/no AC issues addressed. My AC broke down last night and they service people are telling me I have to wait for 5 days before having it serviced. And that is in +40 heat in the house and with a small child in it. On top of that, the service managers are rude and unhelpful, basically you have to wait or go pound sand until the cows come home because they just don't care.
MY STRONG ADVICE IS DO NOT BUY FROM BRYAN"S