TrueDRY DR90 90-pint Whole House Dehumidifier

The Honeywell DR90 whole house dehumidifier is a great enhancement to my home. Living in coastal Florida, the humidity is high year round. I was using a humidity control on my AC to regulate humidity, which works OK in hot weather but is ineffective during mild weather. The AC would overcool (3 degrees lower than temperature setpoint) to drop humidity (55% target RH), and often the RH was still above 60%. The DR90 has been running for 2 weeks maintaining a 50% RH and I have not had to run the AC. The installation took several days for a person with good DIY skills. I did some carpentry work in the attic to mount the unit, ran 2 dedicated returns from the house, and connected the output to the main AC supply plenum (with backdraft damper). I connected the drain to the AC condensation drain pipe with float sensors near the dehumidifier and at a low point of the drain line. I set the DR90 in a drip pan with a water sensor. The float sensors and pan sensor are all connected to a relay to shut down the dehumidifier and setoff an alarm if there is an issue. For the humidistat, I mounted a Honeywell TrueIAQ by the main thermostat. I highly recommend the TrueIAQ. The dehumidifier is extremely quiet. The unit is in the attic over the garage. I can hear a low pitch vibration hum when standing directly under the unit. Inside the house, the fan noise is barely audible when standing under the ceiling return. I purchased the DR90 and most of the installation supplies from Supplyhouse. They did a price match on the DR90 so I was able to get all my supplies through one source. The supplies arrived quickly, but I was a little disappointed with the 2 week shipping on the DR90. At least the shipping was free. Here is a list of the items purchased from Supplyhouse for the DR90 installation: - Honeywell TrueIAQ Humidistat - Fantech RSK10 backdraft damper - Aquagard AG-1250E pan sensor and AG-9100 alarm - Rectorseal SS2 float switches - Functional Devices RIBU1C Relay (for alarm)

Purchased a DR90 3 years ago and it has never been fully installed, only run it occasionally sitting on the basement floor. 2 years in the defrost thermostat fails, fan runs but compressor won't run. After some testing I confirmed it was the defrost stat. Since it's under warranty (5 years) you'd think it would be as easy as calling and getting the name for an authorized repair house for Honewell... think again. Honeywell gave me a list of about 5 local contractors that they say do warranty work. NONE of them do warranty, some sell the odd Honewell thermostat or other product. The only thing that kept popping up was to call the licensed contractor that installed the unit??? Essentially there IS NO WARRANTY if you purchase this and install it yourself. Much like Microsoft warranty on OEM copies of software, they seem to require contractors to provide the warranty labour, I'm sure Honywell would then cover parts but just try and get a contractor to warranty something they didn't sell.... it's a farce. I purchased this unit after burining through a portable unit every few years hoping for better, long lasting quality and partly because of the 5 year warranty. Well that's worth about as much as the paper it's written on. Defrost stat failed with 4 months of acutaly service too, so much for that "quality" I was looking for. So I'm forced to purchase and install a new Defrost stat myself when it should be a warranty item. Hopefully that's the only thing that's junk about this unit and it ends up lasting... time will tell but buyer bewary of bogus warranty promises.