HVAC · HUMIDIFIERS
Dry skin that won't quit, static shock every time you touch a doorknob, cracked hardwood floors, gaps opening up in wood furniture, a nose that bleeds at 3 a.m. — that's what Toronto's bone-dry forced-air heating does to a house between November and April. A whole-home humidifier installed on the furnace plenum fixes all of it at once: bypass humidifiers for most homes, fan-powered units for larger square footage, and steam humidifiers for hydronic-heated homes or specialty applications. One install, set the hygrostat once, and the entire house holds 35–40% relative humidity all winter.
From a $450 bypass unit on a basic furnace to a steam system feeding a 4,000-square-foot home with hydronic radiators, Caspian installs the right humidifier for how your house is heated, how big it is, and how dry the indoor air actually gets.
Aprilaire 500/600 and Honeywell HE series — the workhorse choice for most Toronto homes. Mounts on the furnace plenum, uses the blower to push humidified air through the supply duct. Quiet, reliable, easy to service.
Aprilaire 700-series — built-in fan delivers up to 50% more output than a bypass unit. The right call for larger homes (2,500+ sq ft), high-ceiling builds, or houses where the furnace cycles too short to humidify on bypass alone.
Aprilaire 800 — the only option for homes with hydronic radiators or boiler heat (no furnace duct), for very large square footage, or for specialty applications like wine cellars, humidors, and rooms with valuable instruments or artwork.
The budget option — lower up-front cost, simpler mechanics, but needs more attention (drum cleaning every season to avoid mineral buildup). Honest fit for rental units or homes where minimizing install cost matters most.
Replace the basic dial-style humidistat with an automatic outdoor-temperature-compensating control. Prevents window condensation in deep cold snaps and dials humidity up when the weather lets the house hold more.
Annual pad swap, water-panel cleaning, solenoid check, drain-line flush. Should be done every fall before heating season — a $25 pad and 30 minutes is the difference between a humidifier that works and one that just sits there.
Understand the actual physics of why a Toronto house in February can feel drier than a desert — and why a $500 plug-in humidifier in the bedroom will never fix it.
Cold outdoor air holds almost no moisture. When that air leaks into your house and gets heated to 21°C, the relative humidity collapses to 10–15% — drier than the Sahara, which averages around 25% RH. That's the air your skin, eyes, sinuses, and hardwood floors are sitting in for five months a year.
The comfort range for a healthy indoor environment is 30–50% relative humidity. Below 20%, you get nosebleeds and dry-eye, static shock on every surface, cracking and gaps in solid hardwood floors, splitting wood furniture, and warped panels on pianos, guitars, and antiques.
You don't want to overshoot, either. Above 50% RH in winter, water condenses on cold window glass, runs down to the sill, and over a few seasons rots the frame and grows mould. That's why a proper hygrostat — especially the outdoor-compensating kind — backs the humidity down automatically when it gets very cold.
A whole-home humidifier on the furnace duct solves the actual problem at the source: it adds moisture to the supply air that's already being delivered to every room, holds the house at 35–40% all winter, and shuts off automatically the rest of the year. Set it in October, forget about it until next fall.
Three categories, three price points, three different homes. The right answer depends on how your house is heated and how much square footage you're trying to humidify. Here's how we sort it.
~$400–$600 installed. Uses the existing furnace blower to circulate humidified air. Needs a small bypass duct between the supply and return plenums. Fits roughly 90% of Toronto homes up to about 2,500 sq ft with standard forced-air heat.
~$600–$900 installed. Has its own internal fan, so it humidifies even when the furnace isn't actively heating. More capacity per cycle, no bypass duct needed (good for tight mechanical rooms). The right pick for 2,500–4,000 sq ft homes or short-cycling furnaces.
~$1,500–$2,500 installed. Self-contained boiler generates steam, delivered through dedicated ducting. The only option for homes with hot-water radiators or boilers (no furnace duct to mount onto), very large homes, humidors, art rooms, or any space needing precise humidity control.
GET A QUOTE
Tell us your home's square footage, the heating system you've got (forced-air furnace, boiler, heat pump), and where the dryness is hurting most — hardwood floors, sinuses, instruments. We'll quote the right humidifier for your house, not the most expensive one we sell.