AprilAire 700 Humidifier | Installation in Montreal, Laval, Longueuil, South Shore and North Shore
Is it the right size for your home?
It puts 18 gallons of water a day into the air (with 49 °C (120 °F) furnace air), enough to humidify up to 2,100 sq ft according to the manufacturer. Pick your home's living area.
It's the right size.
For a 900 to 1,500 sq ft house, it's within its range. It will run at part load on ordinary days and keep a reserve for the coldest days.
Area published by AprilAire for an average-construction home. For a very tight home, AprilAire advertises up to 5,300 sq ft. Older or leaky house: go one size up; our estimator confirms it on site.
What it does, in numbers
Output: manufacturer's spec (18 gal/day, with 49 °C (120 °F) furnace air).
What you should know about this one
Published, verifiable figures, not brochure claims.
18 galWhat it produces per day, at full output
About 68 litres of water turned into humidity in 24 hours. The control runs it to match the humidity you set: it rarely runs flat out, except in very cold weather.
Heat pumpBehind a heat pump, it produces less
It evaporates water from a pad using the heat of the air coming off the furnace. A heat pump blows cooler air, so it evaporates less. With a heat pump, talk to our estimator: depending on the manufacturer, we connect it to hot water or suggest a steam model instead.
0 ductNo bypass duct
Its fan pulls warm air straight from the furnace. No bypass duct to cut in: handy when space around the plenum is tight.
0.75 gal/hWhat it actually evaporates
It takes in about 6 gal of water an hour and evaporates 0.75. The rest rinses the pad and goes down the drain.
14¾ in.The opening it needs
A 14¾ × 14 5/16 in. opening in the supply plenum. The fan runs on 120 V (0.8 A).
ControlThe control that comes with it
AprilAire Model 60 automatic digital control with outdoor sensor: it lowers the humidity setting as the cold deepens, to keep condensation off the windows.
UpkeepWhat gets replaced, and when
AprilAire #35 water panel, replace at least once a year.
35%The humidity to aim for in winter, at most
At −7 °C, no more than 35%; at −18 °C, no more than 25%. Above that, the moisture condenses on the windows. The control adjusts for you if it has an outdoor sensor.
5 yearsThe parts warranty
Parts are covered for 5 years by the manufacturer. We register the warranty in your name at start-up.
What it needs on site
Our estimator checks the ducts, the water supply and the drain before ordering.
Complete spec sheetData and cited sources
- Brand
- AprilAire
- Model
- AprilAire 700
- Type
- Fan-powered
- Output
- 18 US gal/day (with 49 °C (120 °F) furnace air)
- Water to drain
- About 6 gal/h while running
- Control included
- AprilAire Model 60 automatic digital control with outdoor sensor: it lowers the humidity setting as the cold deepens, to keep condensation off the windows.
- Upkeep
- AprilAire #35 water panel, replace at least once a year.
- Living area
- Up to 2,100 sq ft
- Dimensions (L × D × H)
- 15.91 × 10.34 × 18 in
- Power supply
- 120 V
- Current
- 0.8 A
- Warranty — parts
- 5 years
Output, dimensions, electrical data and warranty: AprilAire manufacturer's data.
The next model down and up
Talk to an HVAC technician before you choose
We look at your heating system, the electrical panel, the water supply and the drain, and give you an installed price.
AprilAire 700: the fan-powered humidifier, no bypass duct
The AprilAire 700 mounts on the supply plenum of a forced-air furnace. It puts out 18 gal/day with 120 °F (49 °C) furnace air and covers up to 2,100 sq ft according to the manufacturer, the largest area among the AprilAire water-panel models.
What sets it apart
Its built-in fan pulls warm air straight from the furnace and pushes it through the pad. No bypass duct to cut in: handy when space around the plenum is tight. The trade-off: the fan plugs into 120 V (0.8 A), on top of the 24 V transformer for the valve. It comes with the AprilAire Model 60 automatic digital control and its outdoor sensor.
What it needs on site
The opening is larger than the 600's: 14¾ × 14 5/16 in. in the supply plenum. It needs a water supply and a drain, since the 700 takes in about 6 gal of water an hour and evaporates only 0.75; the rest rinses the pad. Behind a heat pump, the air entering the unit is cooler and output drops. The AprilAire #35 water panel is replaced at least once a year.
AirGreen takes care of it
AirGreen is a family business in Montréal that sells and installs its humidifiers. For the AprilAire 700, our estimator first checks the furnace, the panel, the water and the drain, then gives you a quote for the installed unit. Service in Montréal, Laval, Longueuil, the South Shore and the North Shore: 514 316-2973.