Aprilaire 600 Automatic Whole Home Bypass Humidifier - NEW 2025 - Genuine OEM

Name: Aprilaire 600 Automatic Whole Home Bypass Humidifier - NEW 2025 - Genuine OEM
Brand: Aprilaire
Price: 197.68 GBP
Availability: InStock
Rating: 4.75 (48 reviews)

* Authorized Aprilaire Distributor W/Full Warranty *

franeli25

(1542)

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US $259.99

Approximately£197.68

Condition:

New

Quantity:

More than 10 available1,736 sold

People want this. 213 people are watching this.

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Free UPS Ground.

Located in: Royal Oak, Michigan, United States

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Estimated between Wed, 5 Nov and Sat, 8 Nov to 94104

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30 days return. Buyer pays for return postage. If you use an eBay delivery label, it will be deducted from your refund amount.

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eBay item number:201498937529

Last updated on 11 Oct, 2025 22:04:39 BSTView all revisionsView all revisions

Item specifics

Condition: New: A brand-new, unused, unopened and undamaged item in original retail packaging (where packaging ...

Brand: Aprilaire

Type: Duct Mounted

Model: Aprilaire 600

Year Manufactured: 2024

Application: Whole House

Item description from the seller

About this seller

Joined Mar 2001

Registered as a private sellerThereby, consumer rights stemming from EU consumer protection law do not apply. eBay buyer protection still applies to most purchases.

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Detailed seller ratings

Average for the last 12 months

Accurate description

5.0

Reasonable postage cost

5.0

Delivery time

5.0

Communication

5.0

Seller Feedback (1,393)

This item (96)

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g***i (458)- Feedback left by buyer.
Past year
Verified purchase
Everything was quick and easy. Good price. Shipping said 2-3 days but we received it the next day. Great seller!
1***. (163)- Feedback left by buyer.
Past year
Verified purchase
Great product, except for wiring pretty simple to install. Wiring can be tricky.
2***1 (58)- Feedback left by buyer.
Past year
Verified purchase
Good price and quick shipping!

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Product ratings and reviews

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4.8

48 product ratings

39 users rated this 5 out of 5 stars
7 users rated this 4 out of 5 stars
1 users rated this 3 out of 5 stars
1 users rated this 2 out of 5 stars
0 users rated this 1 out of 5 stars

Quiet

Well designed

Easy to set up

Most relevant reviews

See all 33 reviews

by odu_chris
25 Feb, 2022Most favourable review
I should have installed one of these systems years ago!!!
I installed the Aprilaire 600 a few days ago and it has kept my humidity levels between 40-45% throughout the house. I was using several portable humidifiers, but those were only effective in the rooms they were placed and required a lot of maintenance (refilling tanks, some required replacement filters every few weeks, and regular cleaning). Now, I only have to replace the water panel once per year in the Aprilaire unit, and then turn it on/off each heating season. The installation is not simple, but it is doable for those DIYers who are comfortable with plumbing and electrical wiring. For me, cutting out the ductwork was the hardest part, but only because my system is in a tight space and I was using snips. My advice, wear gloves (or have band aides handy) and take your time. In the ... I installed the Aprilaire 600 a few days ago and it has kept my humidity levels between 40-45% throughout the house. I was using several portable humidifiers, but those were only effective in the rooms they were placed and required a lot of maintenance (refilling tanks, some required replacement filters every few weeks, and regular cleaning). Now, I only have to replace the water panel once per year in the Aprilaire unit, and then turn it on/off each heating season. The installation is not simple, but it is doable for those DIYers who are comfortable with plumbing and electrical wiring. For me, cutting out the ductwork was the hardest part, but only because my system is in a tight space and I was using snips. My advice, wear gloves (or have band aides handy) and take your time. In the box, you'll find the humidifier, humidistat, transformer, saddle valve, outdoor thermometer, and instructions. There are no other installation materials included, so plan on spending ~$100 on the 6" ductwork (pipe, collars, elbows), duct tape, sheet metal screws, low voltage wire (I used 18/5) and connectors, 1/2" I.D. drain tubing and clamp, water line, and I opted to use a SharkBite service tee instead of the saddle valve since I plan to turn the water on/off each season. Ductwork: make sure the template is level when you trace it out, and double-check the level when you mount the humidifier. If it is not level, it will not work efficiently and could leak. Electrical: when I was researching how to install these units, many seemed to have concerns about the wiring diagrams. If you install per the manufacturer's recommendations, you are basically just tapping into the wiring to your existing thermostat. The only difference is the ground wire that would go to the G terminal on the thermostat needs to go to the Gf output terminal on the humidistat. Then, run a ground wire from the G input terminal on the humidistat to the G terminal (or wire) from the thermostat. Otherwise, it's just R to R, C to C, and W to W. This particular humidifier does waste water, but it works. I think I was wasting more water by frequently refilling the other humidifier tanks using water from my reverse osmosis filtration system. This unit provides better humidification to the entire house, and the maintenance is MUCH easier.
Verified purchase: YesCondition: NewSold by: franeli25
by handyman6000ft
06 Dec, 2017Most critical review
Nice unit, but I wish it didn't waste so much water
I like the unit, it seems well designed and easy to maintain, but a majority of the water goes down the drain. Apparently that is a common issue with whole house humidifiers. Because of this I am not using it much.
Verified purchase: YesCondition: NewSold by: franeli25
by johnf7165
03 Feb, 2016
Good buy
Nice By pass unit. Fairly easy to install if you have some decent mechanical skills. We get some pretty cold winters here in upstate NY, and the furnace is on a lot. I can't seem to get the humidity level past 35% even with the "blower option" on. After knowing this I would have opted for the model with the fan that blows directly into the plenum, rather than the by pass unit. Still a decent unit that is certainly better than nothingNice By pass unit. Fairly easy to install if you have some decent mechanical skills. We get some pretty cold winters here in upstate NY, and the furnace is on a lot. I can't seem to get the humidity level past 35% even with the "blower option" on. After knowing this I would have opted for the model with the fan that blows directly into the plenum, rather than the by pass unit. Still a decent unit that is certainly better than nothing
Verified purchase: YesCondition: NewSold by: franeli25
by uselessnostalgia
28 Dec, 2021
Fast shipping. Great product. Thanks!
Received quickly. Excellent seller. Replaced a old Aprilaire 550 and got a larger unit since the house was added onto over the years. Easy enough to install myself, just had to enlarge air inlet and run new copper to hot water. The instructions say they won't cover warranty for diy's which I think is total bs. This is some plastic parts, a water panel and 24v solenoid for less than 200 dollars, not a 40 ton rooftop unit. Other thing is, if you want to run it with a smart stat like an Ecobee I bought, you don't need to get the digital. The manual would be fine and would save some money. I got the digital in case I didn't like how it ran with the thermostat. I just ran the common to the thermostat and the solenoid and used the switching acc+, not acc- from the thermostat to the negative on ... Received quickly. Excellent seller. Replaced a old Aprilaire 550 and got a larger unit since the house was added onto over the years. Easy enough to install myself, just had to enlarge air inlet and run new copper to hot water. The instructions say they won't cover warranty for diy's which I think is total bs. This is some plastic parts, a water panel and 24v solenoid for less than 200 dollars, not a 40 ton rooftop unit. Other thing is, if you want to run it with a smart stat like an Ecobee I bought, you don't need to get the digital. The manual would be fine and would save some money. I got the digital in case I didn't like how it ran with the thermostat. I just ran the common to the thermostat and the solenoid and used the switching acc+, not acc- from the thermostat to the negative on the solenoid. You'd think it would be the other way. You have to enable the humidifier and use steam setting, not evaporative. Works great so far together. Hope this helps someone.
Verified purchase: YesCondition: NewSold by: franeli25
by mules1962
09 Jan, 2018
Breathing easy again
Our 1950 square-foot home was down to 21 percent humidity here in Michigan. Static Sparks flying everywhere! Had 2 room humidifiers that couldn't get humidity past 23 percent. Purchased Aprilaire 600. Easy to follow installation instructions. Next morning house was 28 and settled in at 31 percent next day. Great product!
Verified purchase: YesCondition: NewSold by: americanwholesalesupply

Aprilaire 600 Automatic Whole Home Bypass Humidifier - NEW 2025 - Genuine OEM

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Item specifics

Item description from the seller

About this seller

franeli25

100% positive Feedback•4.8K items sold

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Most relevant reviews

I should have installed one of these systems years ago!!!

Nice unit, but I wish it didn't waste so much water

Good buy

Fast shipping. Great product. Thanks!

Breathing easy again

More to explore:

franeli25

100% positive Feedback•4.8K items sold

Detailed seller ratings

Seller Feedback (1,393)

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Aprilaire 600 Automatic Whole Home Bypass Humidifier - NEW 2025 - Genuine OEM

Shop with confidence

Item specifics

Item description from the seller

About this seller

franeli25

100% positive Feedback•4.8K items sold

Detailed seller ratings

Seller Feedback (1,393)

Product ratings and reviews

Most relevant reviews

I should have installed one of these systems years ago!!!

Nice unit, but I wish it didn't waste so much water

Good buy

Fast shipping. Great product. Thanks!

Breathing easy again

More to explore:

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