Electric Water Heater Timer vs. Just a regular Timer? Isn't this just a regular timer?
1857088
If your water heater plugs into an outlet, a regular timer will work fine. Most water heaters, however, are 220 volt lines on a dedicated circuit, thus you need something more like the WH21. Here's a good reference for you: http://michaelbluejay.com/electricity/waterheatertimer.html
1803697
One has an auto shut off and one doesn't. It's best to save your money and go for the one without the auto timer. You could always buy an electric auto shutoff for way cheaper!!
2010797
I don't know about with a timer as I haven't used one, but the unit itself can be left unattended. That is its purpose. We have enjoyed great success with using it in our pump house unattended this winter.
1675174
No. It's just a timer for a drip system. You set the amount of time you want the water on, time of day, and days of week.
428938
You can use your own timer, the one that comes from the company isn't necessary. I replaced my timer with a much more compact model that can be hidden from view better. :D
1486951
CAUTION: An electrical timer will work if you can buy one that can handle a 15 amp draw. [NOTE: IF IT CAN'T, THEN YOU WILL HAVE AN ELECTRICAL FIRE, AND BURN YOUR HOUSE DOWN!!! The heater will pull so much electrical, and make your wire so hot, that it will literally melt the wire.]
81919
No, this is for 220, sure saves money on your electricity. Set timer to heat water only when you need it.
1197434
The timer is a count down timer. It does not have a real time clock. To use it you need to turn the heater on and then set the runt time 1hr, 2hr, etc. You cannot use it like an alarm clock.
1891083
The timer lets you shut hot water flow when not needed. I have had 3 Laing and they all went bad within a year. I would look into another product. Amazon replaced the first two then refunded my money the third time. Great service.
1445802
The nice thing is the brass fittings are the same threads. It just unscrews (hold the outer brass ring keep the top brass fitting in-place and turn). Be careful to make sure the new rubber gasket is set properly, so you don't cut it. You don't need a timer--I just bought a grounded timer at one of many stores and use it to turn on the circulating pump a bit before my wife intends to use hot water (she has a firm schedule). Some timers can be set to go on/off several times a day. I thought the timer was a good idea, since there's no reason for hot water to be circulating through the house (i.e., heating the house and using energy from the water heater) if we didn't need it. The replacements come with a "flow dial". I called the company and they said the high setting is equivalent to the standard/set setting on the old pumps, so that's where mine is.
1539320
A typical domestic water heater is 4500W for each element at 240V, but only one element is allowed to come on at a time. So that's 4500/240 = 18.75 amps. Even with a 10% or 20% margin, this Aube timer - rated at 30 amps - is more than sufficient. This item allows 7 programs. So you could have a different schedule of 1-off/1-on on 7 different days, or you could have 7 identical on-off cycles for all days. One of the beauties of this unit that distinguishes it from the others (including Intermatic digital timers) is that you can install an external SPST switch (a basic light switch will work fine) which overrides the unit and puts it into manual or switches it back into automatic. So, for example, I can use the switch to put the water heater into manual mode and leave it off when I go on vacation. Then, I leave instructions for my house-sitter to just throw the switch and put it back into automatic mode on her last visit so we have hot water when we get home from the airport.
1483572
I don't know about that, but I can tell you that we've been through two compressors and several service visits and we now have a very expensive conventional electric water heater on our hands. The heat pump function no longer works and it began failing a long time ago. I would seriously warn you against spending money on this water heater. Be sure to check out the many reviews across the web on this piece of equipment. It's a true (very pricey) lemon.
1891081
The timer allows you to save electricity, and ware on the pump, by only having the pump circulate during specific time periods. You can have the pump on, or off, any 30 min period during 24 hrs. The timer has a switch for ON (constant), OFF, or AUTO (based on the time periods selected). In my opinion, well worth the extra money. No need to run the pump when not needed. We select time blocks around morning showers and evening dishes.
797796
A couple hours works for me, I run it with a programmable timer. I use the same timer for the block heater.
1270456
You manually set this timer each time you use it. I have this connected to the fill line for my pool. This lets me run the water for a specific amount of time without worrying about forgetting to shut it off.
542732
The first of these timers I acquired was from Home Depot and it was a piece of junk, i.e., it would not keep a program, turn off when programmed , etc. It was returned to the store for a refund. The 2nd I acquired from True Value and I've had zero problems.
1000684
manual for similar timer found on following link: http://waterheatertimer.org/Programmable.html#TMD