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Question: I have a 2600 sqft home built in 1989, and am considering getting the Aprilaire 500 vs the 600.  Is that a wise choice?
Document: Was trying to decide between the 500 and 600 models. They are basically the same, besides how much humidity they can add to the air. My home is about 3300 sq feet, and the 500 is rated for 3000 sq. feet. Another review stated the manufacture said that with a tight home you can bump up the rating by about 30%. Went with the 500 and I have no regrets. Install wasn't hard and wasn't easy either.
;)Cons:- I'm a very skilled workman and the install took longer than expected. Look at spending about 6 hours installing this product.- The transformer that was shipped with the product was DOA. No 24VAC out. Luckily I had a spare sitting around.Pulled this off a review from the 600 model. Revised/Added a couple of items. It works for the 500 model as well.
Like many, I was getting tired of filling room-based units every day in the cold of the Minnesota Winter. After researching whole-house humidifiers, Aprilaire came out on top, especially if you are willing to do the automatic install, which includes installing a sensor outside and running the control wires to the humidistat. As this was my first project involving duct work, I spent quite a bit of time planning, and the project still took the better part of a weekend.
I purchased this a little over a month ago. So far, I'm very happy with it. Functions as expected. Great price - my father actually has same/similar model that was installed on a home they built a year ago. Costed much more, but that included installation. I could/should have probably gone with the manual (M) version, as I'm not sure I will run it outside of manual mode, but who knows.
So far it seems to be performing fine. Aprilaire markets these units for contractors to install and make it somewhat difficult for a DIYer, you'll need to purchase additional supplies from a home supply or hardware store to complete the install, which probably took 1 1/2 days. There are really no installation instructions, just a wire diagram and basic mounting instructions.
Most of the time was spent on wiring and getting the unit mounted on furnace ducts.
- I purchased a 4 ft section and was plenty for a vertical setup.18-2 thermostat wire (a few feet of 18-5 may be helpful to go between the humidifier and your furnace, but 18-2 will work there as well)HVAC foil duct tapeRubber weatherstripping to seal the 500 casing to the duct work.
The item is light and well packed and very basic so no complaints there.I have a 1,500 sq/ft house and it does a fine job so that I don't shock the hell out of my cats and the lining of my nose feels non-dry again. The house is not air tight and some of the tall windows next to the sliders are popped so it is good that it still works well on setting 6.
My father and I installed this about 3 months ago. It took about 4 hours total... not that difficult, took some time, but probably not for novices either.We have about 2400 Sq feet of finished space.I followed the instructions and set the dial to &#34;5&#34; with the outdoor sensor working. So far it does a fantastic job. My finished basement, of all places, was actually the driest (We were getting shocked constantly.)
seems to control humidity in our home very nicely. The unit is made very simple and easy to install. I installed a ice cube maker filter to the unit to reduce clogging of small flow control orfice.
Answer: My home build in 1995, fairly tight construction and well insulated.  ,my previous whole house was drum type humidifier that had constant standing water and did not really do a good job of regulating the humidity.  very happy with the Aprilaire unit.  has been installed for a month and the condensation on the windows is gone, more comfortable in the house now. The unit only uses water when the controller calls for humidity and with the outdoor sensor this seems to regulate the humidity even more.  Pretty much hands off with this unit after the first week of adjusting the humidity controller to my liking.  I live in Michigan and the winter this year very cold.  Very pleased with this unit and if it ever fails will purchase the same type to replace