During cold winter months, we close our windows and fire up the furnace. The indoor air keeps warm, but it can get quite dry.
While this arrangement is good for keeping down mould, it’s not good for your health. The air needs some form of humidity (about 40 per cent is ideal). If it’s too dry, it can cause or aggravate respiratory problems. The symptoms may just seem annoying, but they can lead to other problems. Sore throats and dried nasal passages can make you more susceptible to cold and flu viruses. To combat dry air, you can install a humidifier to keep moisture at the perfect level. Just be sure to turn it off in the summer months when the air is moist enough.
Plan ahead
Before you begin, take a few simple steps to ensure the job goes smoothly.
- Open the packaging and check that all the parts are included.
- Find all the tools you will need and have them close at hand (drill, bits, level, tin snips, utility knife, foil tape).
- Check the manual for the minimum widths and clearance needed for your ducts.
- Plan where you will hook into the water supply and how you will connect to the drainage. Do the same for the electrical wiring needed. (And get a licensed electrician to do the job if your bylaws require it)
- Turn off the power to the furnace before beginning any work.
 | Tape and level the paper template for the humidifier to the cold-air return duct |
 | Complete the same process for the bypass inlet template on the warm-air supply duct |
 | Predrill all the required mounting holes according to the humidifier template |
 | Score the area on the template that marks where the humidifier unit will be mounted |
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