Aprilaire 58 Automatic Digital Humidistat

Aprilaire Automatic Digital Humidistat Model 58

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Aprilaire RP-58

Aprilaire Digital Automatic Humidistat
Includes Outdoor Sensor

Price: $89.00

In Stock

Manufacturer: Aprilaire

Quantity:

The new Aprilaire model 58 automatic humidistat with LCD display. Includes humidistat, outdoor temperature sensor with 36 inch wire and bracket, manual mode resistor, see View More Images.

Size 6 x 4¼". The new Model 58 humidistat control provides comprehensive information:

Set-it-and-forget-it control ensures maximum comfort throughout the home - every hour, every day, all season long.
The attractive housing color - a light blend of blue and gray creates a subtle presence in the installed environment.
Delivers perfectly humidified air to every room of the house, minimizing cold triggers, dry, itchy skin and static shocks.

For some homes, manual control may be preferred. The Aprilaire 58 includes a bypass resistor used to replace the outside temperature sensor.

Honeywell UV100E1043 Enviracaire SmartLamp

The indoor humidity level needs to be set based on the outside temperature. This is to prevent water from running down the windows. The cool air near the windows can not hold the humidity and water will condense on the glass. To prevent this condensation, the indoor humidity level is sacrificed by lowering the humidistat.

A manual humidistat needs to be set back as the season gets colder. An automatic humidistat (such as the Aprilaire 58) adjusts the humidity by using an outside temperature sensor.

The Honeywell automatic humidistat (H1008A) determines the outside temperature based on the furnace duty cycle or with an optional outdoor sensor. Below the Honeywell owners manual discusses this feature they call HumidiCalc.