Aprilaire

800 Whole-House Steam Humidifier

Aprilaire 800 Whole-House Steam Humidifier

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TL;DR: Superior whole-house steam; high installation and running costs.

Overall

#4 in

Humidifiers

according to Reddit Icon Reddit

Sentiment score76% positive
28
3
6

Top Pros

Top Cons

Last updated: Jun 26, 2026

Reddit Reviews

Reddit Icon20PoundHammer
6 months ago

I strongly recommend you avoid evaporative humidifiers and get an aprilaire steam one injecting into the supply ductwork, they are $1100-1500ish installed by a decent HVAC tech and provide far better control than evaporative ones (i.e. pads/drums/ect), and by nature will not grow shit due to old folk not doing the maintenance required on evaporative systems and are more disaster proof (i.e. un-noticed leaks) than evaporative ones as well.

6 months ago

Yup, although I was off on the price and it increased more than $300 over the last couple of years. Still easier to install unless you have a huge house and want to run it on 240VAC and not 120. Personally - I feel 120VAC is a more even change in humidity than the higher voltage and generally install it sucking that.

Reddit Iconajs2410
5 months ago

Aprilaire 800 would recommend

Reddit IconArsenichv
6 months ago

Aprilaire 800 is awesome.

Reddit Iconblachath
7 months ago

The 800 uses a lot of electricity . I was surprised in the jump in the electric bill.

Reddit IconDerf_the_Taco
Reddit Iconeneka
6 months ago

It really depends on your house and how well sealed it is. We installed a aprilaire 720m and so far has kept our house at 40-45% consistently. But we have a new build, well sealed home. If you have an older leaky house, it may not perform as well. There’s the 800 steam version, but that will use a considerable amount of electricity.

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4
Aprilaire 800 Whole-House Steam Humidifier

Aprilaire

800 Whole-House Steam Humidifier

76% positive of 37 users

Superior whole-house steam; high installation and running costs.

5
Aprilaire Model 600

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81% positive of 26 users

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Other Reddit Recommendations:

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