User Guide

For the Homeowner:

How Your Humidifier Works

Your Skuttle Steam Humidifier

supplies moist air to your home

much the same way as outdoor

air is humidified. On a warm

summer day, the sun’s heat

evaporates water from puddles,

streams, rivers, oceans, etc.,

turning it into vapor (humidity).

The amount of water vapor that

rises into the air is determined

by the amount of time the water

is exposed to the heat source.

If you were to look inside your humidifier’s reservoir, you would see an

immersed, tubular heater and two floats. When your home is too dry, the

humidistat (humidity control device) installed with your system activates the

humidifier heater. A built-in thermostat senses the water temperature and,

when the water is warm enough, turns on a relay to activate the blower on

your furnace. The blower, independent of your home’s heating system,

disperses humidified air throughout the house. In other words, the heat neces-

sary for evaporation is supplied by the humidifier itself, rather than by your

furnace.

Once the selected level of humidity is reached, the humidifier heater turns off

automatically. However, the furnace blower continues to replenish the mois-

ture in your home until the water in the humidifier’s reservoir is cooled and

ceases to produce steam. All this takes place without disrupting your heating

system’s normal operation. When the indoor humidity drops below the desired

level, the process begins again.

As water is evaporated from the humidifier reservoir and replaced by fresh

water, the larger of the two float valves prevents overflow by shutting off the

water at the designated level. The smaller float acts as an additional safety

device, automatically shutting off the humidifier heater if, for any reason, the

water level drops below the heating element.

Because water evaporated from the humidifier leaves behind all its impurities

(calcium, iron, lime, bacteria, etc.), the resulting humidification doesn’t pollute

your indoor air. Instead, your home is freer from these contaminants, creating

a healthier, more comfortable environment for you and your family.