AprilAire 300 Humidifier | Installation in Montreal, Laval, Longueuil, South Shore and North Shore
Is it the right size for your home?
It puts 13 gallons of water a day into the air, enough to humidify up to 2,000 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, its sheets give 3,500 to 3,900 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 (13 gal/day).
What you should know about this one
Published, verifiable figures, not brochure claims.
13 galWhat it produces per day, at full output
About 49 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.
No ductsFor homes without forced air
It has its own blower (245 to 270 CFM) and sends the moist air through an 8 in. duct. It's designed for homes with baseboards, hot-water heat or ductless wall units.
120 °FIt needs hot water
AprilAire requires a hot-water supply of at least 120 °F (49 °C), plus a gravity drain.
29 lbHung from the joists
It goes in the basement, attic or crawlspace, hung from the joists, and plugs into a 120 V outlet (0.7 A).
ControlThe control that comes with it
AprilAire Model 65 digital manual humidistat (10 to 50% range).
UpkeepWhat gets replaced, and when
AprilAire #35 water panel, the same as the 600 and 700, 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 where it will go, the water supply, the drain and the power supply before ordering.
Complete spec sheetData and cited sources
- Brand
- AprilAire
- Model
- AprilAire 300
- Type
- Evaporative, no ductwork
- Output
- 13 US gal/day
- Water to drain
- About 6 gal/h while running
- Control included
- AprilAire Model 65 digital manual humidistat (10 to 50% range).
- Upkeep
- AprilAire #35 water panel, the same as the 600 and 700, replace at least once a year.
- Living area
- Up to 2,000 sq ft
- Dimensions (L × D × H)
- 14.38 × 22.09 × 12.5 in
- Power supply
- 120 V
- Current
- 0.7 A
- Weight
- 29 lb
- 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 300: a whole-house humidifier for homes without ducts
The AprilAire 300 humidifies the whole house even when there's no forced-air furnace. It puts out 13 gal/day and covers up to 2,000 sq ft according to the manufacturer, for an average-construction home. It's designed for homes heated with electric baseboards, hot water or ductless wall heat pumps.
What sets it apart
- Its own blower: 245 to 270 CFM, sending the moist air into the house through an 8 in. duct.
- Hung from the joists: it goes in the basement, attic or crawlspace, and weighs 29 lb.
- Humidistat included: an AprilAire 65 digital manual control, adjustable from 10 to 50%.
What it needs on site
The 300 needs a hot-water supply of at least 120 °F (49 °C) and a gravity drain. It uses about 6 gal of water an hour while running; what isn't evaporated rinses the pad and runs to the drain. It plugs into a 120 V outlet (0.7 A). Upkeep comes down to the AprilAire #35 water panel, the same as in the 600 and 700, replaced at least once a year.
Installed by AirGreen
AirGreen sells and installs the AprilAire 300. Before quoting, our estimator comes to look at the heating system, the electrical panel, the water supply and the drain. We work in Montréal, Laval, Longueuil, the South Shore and the North Shore. To book a visit: 514 316-2973.