GE 24-hour Mechanical Pool Timer Switch, Timers for 2HP 40A Load Capacity Pump for Pools, Outdoor NEMA 3R-Rated Box, & Universal Voltage Replacement & Water Heaters, Tamper Resistant, 46536

I installed this 18-months ago in my home, to control the water heater. I placed both sets of contacts in PARALLEL to ensure it would handle the current. That house was in Yuma AZ, so most of the year the "cold water" coming into the house is already hot! So we only needed the hot water heater in the "winter months" when it got "chilly" (70's/80's days, 40's/50's at night). In those circumstances we had the timer apply power 1.5 hours in the AM and then again 1.5 hours in the PM - like that we had hot water any time of day or night but instead of paying for electric power 24hrs a day, we only paid for 3-hours a day. YOU WILL SEE THE DIFFERENCE IN THE FIRST ELECTRIC BILL!!I moved and sold the house after 18-months, the timer still working and looking like new.Bought another timer for my new house - have not installed it yet because where we live now is REAL winter with teens, twenties, thirties, snow, icy windshield in the morning et all. So I'm in no hurry to install the timer, I'll wait until closer to summer when I can actually use the timer again.It has a VERY GOOD FEATURE: a manual 3-way switch with positions labelled "ON" "OFF" and "TIMER". So for example, it's just me and the wife, we are retired. One weekend family comes to visit and both spare bedrooms plus the RV are full of visitors, and LOTS of showers shall be required: You DON"T HAVE TO RE-PROGRAM the timer to run more hours - just switch it to "ON" full-time until the visitors leave, then switch it back to timer.Similarly say you go on vacation for a month, just set the switch to "OFF" until you come back home - you don't have to go find the circuit breaker in the main electric panel to turn it off.Yup, this thing is great. REAL, sturdy METAL box it comes in. Just "hop off the fence" and get one.

easy to install works great to save in our electric bill

This works awesome for my low yield well. I set it to come on for a minute every 5 hours. It pumps the water into a 200 gallon holding tank. When the tank fills up the float valves closes off, and then the water fills a small pressure tank, when that fills the pressure switch switches the pump off. So then the pump will not come on anymore even if this unit comes on until the pressure is released after I use a bunch of water. From the holding tank I have a jet pump that is connected to another pressure tank and switch and that goes to the house.The first pressure tank before the holding tank must be set low around 25 PSI though, that allows water to flow in sooner so the pump doesn't build pressure too fast and click on and off like a hundred times a second. It needs decent buffer zone from the 40/60 pressure switch.This works way better than the typical designs how they normally do this. I'm very happy with it and the whole thing is working fantastic. And my pump will never burn out, even if something else goes wrong, at worst the pump only runs for a minute at a time. I actually blew out a PVC connection and water leaked all over, but no problem as my pump didn't drain the well or burn out. This unit only allowed it to run for a minute at a time. Before I got this unit I burned out a pump before, I said there has got to a be a better way, and I didn't like the way they usually do it with control pumps. Those have their own issues I don't want to get into here. This thing is awesome and works fantastic the way I have it set up now. And I can adjust the timings any way I like.Also I love that you can switch it on to bypass the timer if you want to check things or run it right there and then. It also has a nice toggle switch to turn it off so you don't have to switch off the breaker if you need to turn it off.I wish the battery was replaceable though. Usually those last 10 years or so. I guess in 10 years I'll have to buy a new unit? Still worth it though.

I like this product. First, the enclosure is metal which is much more durable that the other options that are plastic. I also purchased this because it can be programmed for each day of the week if you want. Once we got it installed, it was super easy to program. There are 9 different timers that can be programmed and each one can be programmed for one day or for a set of days that comes preprogrammed in the system so it made it super easy to set up weekday vs weekend programming. I also like that this unit can be manually turned on without changing the programming, just flip a switch to turn it on and then flip the switch back to time for the programming to function. We are using it for a water heater, so being able to turn it on if our schedule changes one day is super helpful. It also has other programming options like random turn on. Doesn't work for a water heater, but if you use it for a different purpose, could be nice to have.The only downside of this unit was the knockouts for the electrical feedthroughs were really tough to remove since they were not properly notched out enough. We wanted to use the smaller knockout but could not get that one cleanly out without also removing some of the ring around the small one that only needs to be removed to use the larger knockout.