Can this be used on a electric hot water heater?

In most cases, yes. The timer is rated to handle 40 amps at 240 volts and typical water heaters draw slightly less than 20 amps at that voltage. Some water heaters, however, can draw substantially more. Check the circuit breaker for your water heater to find out how much the circuit can deliver. If it is more than 40 amps, do NOT use this timer but if it is less than 40 amps, it should be fine.

Will a rain sensor work with this timer?

The timer can't work with a rain sensor.

Can this timer be used on a gas water heater?

Not for any gas water heater I'm familiar with. Unless your water heater plugs into the wall, how would aa timer control the water heater? Even for an electric water heater, the timer is only rated for 40 amps. (Yes, technically there is a way but unless you are a master electrician, it would be very unsafe).

Will this replace Intermatic R8806p101c sprinkler timer?

Yes, it will. It can be wired for either a single leg of 120 Volts or to a Poly Phase up to 277 Volts. 50-60 Hertz. It's also good for up to 40 Amps whereas the mechanical timer is good only to 30 Amps. Simple wiring instructions are included with it for your application. I installed mine of a water heater. in my shop. I also purchased their Wi-Fi version for a second water in my house.

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DEWENWILS Pool Pump Timer, Digital Timer Box, 2HP 40A 120-277 VAC, 7-Day 20 ON/Off Programmable Timer Switch for Water Heater, Pool Pump, SPA, Motor, ETL Listed Gray

DEWENWILS Pool Pump Timer, Digital Timer Box, 2HP 40A 120-277 VAC, 7-Day 20 ON/Off Programmable Timer Switch for Water Heater, Pool Pump, SPA, Motor, ETL Listed Gray

Product ID: 434609405

Details

Brand
DEWENWILS
Color
Gray
Item Weight
0.53 kg
Material
Plastic
Product Dimensions
5"D x 5"W x

⚡40A heavy-duty power

📅20 programmable ON/OFF schedules

🔋3-month backup battery

€ 103.74

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Description

⏰ Take control of your pool’s power like a boss—never miss a beat or a swim!

WEATHERPROOF WARRIOR - Built to brave -40℉ to 140℉ with waterproof, flame-retardant housing—no more weather worries.
UNINTERRUPTED CONTROL - 3-month backup battery keeps your settings safe even during power outages—set it and forget it.
PLUG PLAY SIMPLICITY - Removable timer module and versatile wiring options make installation a breeze for pros and DIYers alike.
POWER THROUGH ANYTHING - Handles up to 2HP and 40A for dual device control without breaking a sweat.
TAILORED TIMING MASTERY - Set up to 20 ON/OFF schedules across 7 days with multiple modes including DST for ultimate energy savings.

The DEWENWILS Pool Pump Timer is a robust, ETL-listed digital timer switch designed for managing pool pumps, heaters, and motors with up to 2HP and 40A capacity. Featuring 20 programmable ON/OFF schedules over 7 days, multiple operation modes including daylight saving adjustments, and a 3-month backup battery, it ensures reliable, energy-efficient control. Its weather-resistant, flame-retardant housing withstands extreme temperatures and outdoor conditions, while easy installation options make it perfect for both indoor and outdoor use.

Specifications

ASIN	B09TSYLYT7
Battery Life	3 months
Best Sellers Rank	#60,333 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #42 in Electrical Timers
Brand Name	DEWENWILS
Color	Gray
Customer Reviews	4.3 4.3 out of 5 stars (1,097)
Item Dimensions D x W x H	5"D x 5"W x 2"H
Item Weight	0.53 kg
Manufacturer	Dewenwils
Manufacturer Part Number	HODT01C
Material Type	Plastic
Model Number	HODT01C
Number of Items	1
Number of Packs	1
Number of settings	20
Unit Count	1 Count

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€ 103.74

Duties & taxes included

In stock

Sold byAmazon CyprusDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Cyprus.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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