Hey all, Have had a Premier E series 3 1/2 ton 3 zone system Waterfurnace in my custom home since '04. I was an electrical contractor for 15 years and hooked up a number of WF units in new and retro construction over the years. I was impressed with the performance and the fact that there was no outside unit and they were so quiet. So... when I built my own place I put one in. I had a great mechanical guy put in all the duct work - 90% metal duct with all radius'd joints etc. Done IMO much better than the company I bought the unit from on all the jobs I saw. Supervised the loop installation and it was done properly. In '04 my fan went bad during the first winter of usage. Bearings failed. In '05-'06 my compressor began making a lot of noise. Took a while for anybody to figure it out. Then one day there was a Waterfurnace company meeting in VA Bch about 4 Hrs from here. They sent the regional Tech guy and the company VP here to check it out along with the HVAC installer tech guy. Fortunately, while they were here checking it out the compressor disintegrated completely in a rather dramatic rod throwing display. It was replaced under warranty. Shortly thereafter the coil began to leak. Another warranty replacement. Since then I have had another coil or two replaced, and I am now assuming that I have another one that has gone bad as I can tell by the performance and the sound of the compressor when it is in 2nd stage that it is very low on freon again. My "labor allowance" ran out long ago, so it is now on my dime to have the replacement parts installed each time in addition to the service calls to check and replace lost freon. It is my understanding that the coils were defective inasmuch as the manufacturer failed to rinse the coils to neutralize acidic content and they subsequently damage the units. Waterfurnace is not forthcoming with this information and the HVAC Co. is not really interested in going to bat for me on more than a superficial basis. Last time I talked to WF, their big concession was that they would sell me a new unit for somewhere around 3 grand plus the cost to install. All I wanted was for them to replace the guts and put in a Schroll type compressor & board. No dice. I am very happy with the unit when it is fully charged/functional, and it does a great job keeping the 3200+ SF home comfortable year round. BUT Waterfurnace is unwilling to step up and replace this thing that has been defective since day one. It has never performed for longer than about 18 months without major repairs of one type or another. This is clearly totally ridiculous. I have many other properties with HVAC units in them that do not require this level of repair. When I recounted the service history with WF they denied that the fan motor and compressor repairs had been done despite the Arkansas cowboy VP having carried on a conversation with me for well over an hour in my basement while the compressor was blowing up. Not a problem for me as I keep meticulous records. I am looking for an alternative if my attorney is unable to resolve the issue when this next round of repairs is broached. So, Caveat Emptor with Waterfurnace. I will and advise others to check other manufacturers and their reputation. The lack of readily available contact information for Waterfurnace should be your first clue. Geothermal great - Waterfurnace not so much.