Click for a larger view of Models 2000 and 2001

Models 2000 & 2001

Bypass Flow-Thru Humidifiers with manual humidistats

Click for a larger view of Model 2002

Model 2002

Fan-Powered Flow-Thru Humidifier with manual humidistat

Click for a larger view of Models 2100 and 2101

Models 2100 & 2101

Bypass Flow-Thru Humidifiers with Compustat automatic humidifier controls

Click for a larger view of Model 2102

Model 2102

Fan-Powered Flow-Thru Humidifier with Compustat automatic humidifier control

Housed in handsome, sturdy thermoplastic cabinets, Skuttle’s high-capacity Flow-Thru Humidifiers are designed to accommodate today’s narrower ductwork, lower furnace temperatures and shorter blower cycles.

How Flow-Thru Humidifiers Work

Operating in conjunction with your home’s central heating system, a Bypass Flow-Thru Humidifier (Model 2000, 2001, 2100 or 2101*) helps maintain indoor relative humidity at a balanced, healthier, more comfortable 30-to-45 percent. When the indoor humidity level drops below the pre-selected level, a switch inside the humidifier causes fresh water to flow across a porous evaporator pad, where it is exposed to warm, dry air forced through the humidifier by the furnace blower. As the water evaporates, the heating system circulates humidified air throughout the home.

A Skuttle Fan-Powered Flow-Thru (Model 2002 or 2102*) operates on the same principle as a Bypass Flow-Thru, except that the warm air is forced through the humidifier by an internal fan, rather than by the furnace blower.

Environmental Facts

Because these units employ the flow-thru principle of humidification, they use more water than other types of humidifiers. However, Skuttle engineers were the first to reduce Flow-Thru water consumption to the minimum necessary for effective humidification. Electrical consumption is about the same as a 25-watt light bulb. The summer shutoff damper on bypass units increases efficiency and saves energy. Flow-Thrus do not produce harmful contaminants, nor do they release them into the air.


Flow-Thrus are the easiest of all central system humidifier types to maintain. Unless your water is extremely hard, one thorough cleaning per year should be sufficient.

The humidifier and the connecting water valve must be turned OFF at the end of each heating season. On bypass units, the shutoff damper should be turned to SUMMER.

*Skuttle’s 2000 Series Flow-Thru Humidifiers (Models 2000, 2001 and 2002) come with manual humidistats. Series 2100 units (Models 2100, 2101 and 2102) are equipped with Compustat automatic humidifier controls.

Minimal Electricity= Uses minimal electricity

Water Efficiency = Uses water efficiently

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