I plan to install two Quietcool 3100 whole house fans. Will 1 timer work with two 2-speed switches? Or is there a specific 2 speed switch for 2 fans

Yes...1 timer with two 2-speed switches. Installation would be the combination of the QC CL-3100 and the QC CL-4500/6500 examples in the manual. The difference will be separate Hi/Lo switches. Feed the red wire from the timer to both Hi/Lo switches. Very similar to the QC CL-4500/6500 but with two QC CL-3100s.

Can this be used with a towel warmer? ( Mine is 120v/ 150w)

It should easily be able to handle 150 watts. That's like two 75 watt light bulbs....a trivial draw.

Will this work with a 12volt system?

No. Unless you converted all wiring behind and beyond the switch to 12volt

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Intermatic EI220W 1/2/4/8 Hour SPST 1800-Watt In-Wall Countdown Timer, White

Intermatic EI220W 1/2/4/8 Hour SPST 1800-Watt In-Wall Countdown Timer, White

Product ID: 3571965

Details

Brand
Intermatic
Color
White
Material
Plastic Resin
Number of settings
2
Product Dimensions
1.44"D x x

⏳1/2/4/8 hour countdown timer

⚡supports up to 1800W load

🔇silent operation for distraction-free use

€ 116.67

Duties & taxes included

In stock

Sold byAmazon SlovakiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⏰ Elevate your space with smart, silent timing—never forget to switch off again!

TRUSTED CERTIFIED - UL approved for Canada and US, ensuring safety and reliability you can count on.
PRECISION TIMED CONTROL - Set your lighting or devices to auto-off with 1/2/4/8 hour increments for ultimate convenience.
HIGH POWER COMPATIBILITY - Handles up to 1800 watts, perfect for a wide range of household and office electrical needs.
WHISPER QUIET PERFORMANCE - Enjoy silent operation that keeps your space peaceful without annoying clicks or buzzes.
SEAMLESS DECOR INTEGRATION - Fits standard decorator-style wall plates (not included) for a sleek, modern look.

The Intermatic EI220W is a versatile in-wall countdown timer offering selectable 1/2/4/8 hour settings, silent operation, and compatibility with loads up to 1800 watts. Designed to replace single-pole switches, it fits decorator-style wall plates and is UL certified for safe, reliable use in both Canadian and US homes. Its clean white finish and compact size make it an unobtrusive yet powerful addition to any modern space.

Specifications

ASIN	B000LWIGU8
Best Sellers Rank	#253,589 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #156 in Electrical Timers
Brand Name	Intermatic
Color	White
Customer Reviews	4.5 4.5 out of 5 stars (449)
Global Trade Identification Number	00078275095274
Included Components	EI220W
Item Dimensions D x W x H	1.44"D x 1.69"W x 4.13"H
Item Type Name	Intermatic EI220W 1/2/4/8 Hour SPST 1800-Watt In-Wall Countdown Timer, White
Manufacturer	Intermatic
Manufacturer Part Number	EI220W
Manufacturer Warranty Description	1 year, replace unit, no labor.
Material Type	Plastic, Resin
Model Number	EI220W
Number of Items	1
Number of Packs	1
Number of settings	2
UPC	885173442235 078275095274 635409437173 885209397997
Unit Count	1 Count

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