Drum Humidifiers

Models 90 / 190 / 86

Because Skuttle Bypass Drum Humidifiers rely on forced air, they are well suited for warm-air heating systems, including gas, gas high-efficiency, electric, heat pump, geothermal, solar and oil forced air systems. Model 90 is housed in a handsome, polished stainless steel cabinet. Model 190 has a sturdy thermoplastic cabinet with a see-through window.

How Drum Humidifiers Work

A Drum Humidifier’s output is controlled by the humidistat, which monitors the home’s relative humidity and activates or deactivates the unit accordingly. Inside the humidifier, a rotating evaporator pad (or drum) lifts water from the water pan into the air stream, which is warmed and circulated by the furnace blower. The pad’s multiple holes and connecting strands significantly increase the area from which the water can evaporate.

Environmental Facts

Skuttle Drum Humidifiers use minimal water and electricity, making them the most economical and ecologically friendly humidifiers to operate. Drum Humidifiers do not produce harmful contaminants, nor do they release them into the air.


Although Skuttle Drum units require more maintenance than other humidifier types, they are designed for easy cleaning and pad replacement by either the homeowner or servicing contractor. At a minimum, the humidifier and pad need to be cleaned at the end of every humidifying season. Mineral buildup on the pad may necessitate mid-season cleaning, as well.

The humidifier and the connecting water valve must be turned OFF at the end of each heating season.

Download the Owner’s Manual for all models.

Visit our Skuttle Parts online store to see parts diagrams and order replacement parts. Note that Model 45 has been discontinued, but parts may still be available.

View short video on pad replacement.

In hard-water areas, installation of a Skuttle Automatic Flushing Timer will reduce cleaning frequency. 

Drum Humidifiers:

Minimal Electricity= Use minimal electricity

Minimal Water  = Use minimal water

A Green Choice = Are most environmentally friendly