Comments about Aprilaire Aprilaire Model 500 Humidifier:

I like this little humidifier

Comments about Aprilaire Aprilaire Model 500 Humidifier:

The unit is simple and well designed... and not over priced. I wish everything was that way!

Comments about Aprilaire Aprilaire Model 500 Humidifier:

A few Thins too watch out for on instaling this unit. The Summer/winter dampner is a bit chessy. Not a tight fit at all, and also watch where you put the seam of the duct work. First time i fit everything, the seam was inhibiting the damper from closing all the way. And a few things about the saddle valve too save alot of hassles later with leaks. Install the valve to the saddle first, tighten, but not too tight, this part is just too hold the valve onto the saddle, doent keep water from leaking, but tigh enough so the valve is close too flush with the back of the saddle. Then install the rubber gasket onto the back of the saddle, MAKING SURE that the little nub on that gasket goes into valve all the way, otherwise if you follow the instruction, it would be a crapshoot if it would even go into the valve properly too prevent that dreaded water leak that saddles valves are notorious for. Mine is installed and very much leak free from the first time i pierced the water line...As far as the unit itself goes, so far so good. Not much time on the unit, but it works. The wiring I guess could be trying, but read twice, cut once.

Comments about Aprilaire Aprilaire Model 500 Humidifier:

My wife has been after me to put one of these in for quite a few years. I finally decided to get up off the wallet and go for it. Installing the unit was pretty straight forward and not real difficult. The wiring instuctions were a little confusing but other than that it went fairly smooth. My wife said it made a big difference the first night. The windows don't sweat anymore either like they did with the portable unit. Overall a good investment and I wish I wouldn't have waited so long.

Comments about Aprilaire Aprilaire Model 500 Humidifier:

I have had this unit installed for 2 weeks already. Installing the humidifier was easier than the electric and plumbing. I keep the dial set at 5 and it seems to regulate itself just fine (outdoor air temp has been varying between 14 deg F and 43 def F and humidity level in house has ranged from 26% to ~40%).

The only downside to this unit was that it requires 24V power other than that which it draws from the air handler. That required me to pull a line from a nearby outlet. Not a major problem but I would have preferred to realize that in advance.

I recommend a water line with a shut off valve rather than using the self piercing saddle valve. Most plumbers would not recommend the saddle valve. I put in a ball-joint valve on the hot water line in the basement and ran the 1/4" line to the second floor.

I only gave the unit 4 stars because this is only unit I've ever had in my own house. I would definitely get the auto humidistat over a manual one. I would buy this unit again.

Comments about Aprilaire Aprilaire Model 500 Humidifier:

I have been contemplating this for a while. Looked around and iaqsource had the best selection and information on this product. I ordered the model 500A because of the information provided. [...]. I installed it myself; and I am not that handy. It turned out great, if I do say so myself. The best part is that it works wonderfully. It has eliminated my morning dry mouth, and our skin and our house feels much better. As an added bonus, we have had to turn down the heat $$.

Comments about Aprilaire Aprilaire Model 500 Humidifier:

The installation instruction are a bit light, but one can figure it out. The wiring booklet was extremely helpful. Product is simple in design and should last a long time. Just wish the summer/winter damper sealed better and didn't let so much air through. Will probably fabricate my own and place over the opening to make summer A/C usage more efficient. Otherwise a great product - started humidifying immediately and didn't take long to reach the proper level (2000 sq. ft. house).

Comments about Aprilaire Aprilaire Model 500 Humidifier:

It just works. According to my contractor, it's very east to install.

Comments about Aprilaire Aprilaire Model 500 Humidifier:

I loved the price [...].The problem was the " tap " valve that came with the unit leaked. I tried to caulk it , but , had to go out and buy another one locally to get it to work.

Comments about Aprilaire Aprilaire Model 500 Humidifier:

The installation directions were clear and the unit was easy to install. Flow-through humidifiers like this are MUCH better than the drum type as the water does not sit for extended periods of time in the pan under the drum. The automatic control on this unit is very effective in adjusting the humidity level based on the outside temperature.

Comments about Aprilaire Aprilaire Model 500 Humidifier:

We have wanted a whole house humidifier for several years and finally purchased our Aprilaire. The Wisconsin winters are long and cold and the in home air gets very dry. Installation was simple, hand tools and a power drill. The Aprilaire has greatly improved the comfort of our home. No more waking up with breathng problems and the automatic control is great. Set it and forget it.

Comments about Aprilaire Aprilaire Model 500 Humidifier:

Got the product professionally installed within a week of receiving to replace the older 550 model that only had manual adjustments. Now we don't have to worry about constantly changing the humidity settings based on the outside temperatures, and the house stays comfortably humidified no matter what, without overhumidifying!

Comments about Aprilaire Aprilaire Model 500 Humidifier:

[...] best price.

Comments about Aprilaire Aprilaire Model 500 Humidifier:

This is a great humidifier. With it's external temperature sensor, it's smart about setting the humidity. With it's flow-through approach, you don't need to turn it off and clean it out come summer.

Was a lot of work to install because of all the connections: air, water, thermometer and electrical connections to furnace.

Don't do it yourself unless you're pretty handy.

Comments about Aprilaire Aprilaire Model 500 Humidifier:

Works Great

Comments about Aprilaire Aprilaire Model 500 Humidifier:

This humidifier is fairly easy to install for anyone who is handy and familiar with electrical. It's performance is fantastic. It monitors outside temperature to prevent condensation on windows, once you've determined where to set the dial for your home. I wired it slightly different from the directions, connecting it the the gas valve rather than the fan, so that it will not run unless the system is in heat mode. Great product!

Comments about Aprilaire Aprilaire Model 500 Humidifier:

Great unit, works very well. The outdoor air temp sensor is not very easy to install, so you might consider the 500M for less money.

Also, these new Aprilaire units are not wired the same as the old ones. I had to have a professional installer come back twice to get it "almost" right. Only after I figured it out myself was it completely wired properly.