Aprilaire Model 700 Whole House Humidifier is mighty and will protect your home from dry air.
This powered flow-through humidifier operates with your current heating and cooling system and produces accurately humidified air everywhere in your home.
Aprilaire Model 700 is an evaporative humidifier and can give up to 18 gallons of mist per day. You can humidify spaces up to 4,200 square feet. Only Aprilaire Model 600M and Honeywell HE360A can compete with that. 
Pros
- Covers large area
- Built-in drain to flush mineral build-up from the machine
- Warm air evaporation
- Water panel change indicator
- Digital humidity controller with automatic and manual options
- May reduce energy costs – the colder months can help you feel warmer, leading to reduced heating costs
- Efficient water usage
Cons
- A qualified HVAC technician should install it
- Have to replace the filter regularly
Aprilaire Model 700 Design and size
Aprilaire Model 700 is created to be installed on your HVAC system’s warm air supply plenum, so it doesn’t have a unique design.
The humidifier is made to be in a place where you don’t see it, so you don’t need to think about how it looks.
Humidifier has a front cover, base, and a lot of parts between them. See the image below.
As the humidifier doesn’t have a bucket, it is not big and doesn’t weigh much. So the weight is only 9 pounds (4 kg).
Height: 15.9 inches (40.5 centimeters)
Width: 15.9 inches (40.5 centimeters)
Depth: 10.3 inches (26 centimeters)
Aprilaire Model 700 Features
First, I have to mention that 2 Aprilaire 700 models are available. One comes with a manual humidity controller only, and the other comes with a manual and digital controller. The digital controller maintains automatic set it and forget it performance.
Set It and Forget It function lets you insert your desired humidity level on the humidity control. Then the humidifier automatically keeps that level.
Automatic humidifier control shows you indoor humidity level, humidifier on/off indicator, change water panel indicator, and Call dealer for Service light.
It also has 7 dial settings. Again, use a table from the user manual to pick the right one. Those settings depend on the temperature and overall humidity level.
Aprilaire Model 700 has a water panel (filter) explicitly created to give your home proper humidity throughout the heating season. Humidifier has an indicator that warns you when it’s time for a replacement.
Aprilaire Model 700 Noise level
Humidifier has noise from the motor and fan blade. You can barely hear it when operating slowly, but it is loud at the fastest speed. But for such a powerful humidifier, that’s normal.
Aprilaire Model 700 Maintenance And Upkeep
After installation, the next thing you will do is Water Panel change. For decent humidifying during the season, you should replace it twice yearly. The Water Panel price is around $16.95.
Periodical review and preventative maintenance of your total heating system are essential for efficient and safe performance. Your heating contractor can maintain your humidifier when assisting the HVAC system.
Overall you don’t need to do much about this humidifier. Just set it and let it work.
Aprilaire Model 700 Summary
Aprilaire Model 700 whole-house humidifier is one of the most powerful humidifiers available today. The best thing about it is that you can set it and forget it.
A humidifier helps you feel warmer and, in that way, reduces heating costs. You should try this humidifier if you have dry air signs like itchy, dehydrated skin, dry lips, respiratory sensitivity, and nasal hypersensitivities.
