I have an RV that I want to put a heater in the forward section and another in the rear section. I want to power these from 1 outlet and switch power back and forth between the 2 heaters about every hour. Both cannot be on at the same time.

I'm an old navy ET and understand the concept, could someone help me identify a reliable flip-flop relay powered by 110v.

I think this might work, but I'd rather have a proven device.
JOTTA 16A Multifunction Time Relay with 10 Function Choices JRT8-M2,AC/DC12V-240V
https://a.co/d/dVyanWH

Thanks so much, Phil

 

I think this might work, but I'd rather have a proven device.

From the description and images I've seen it certainly appears it will work.

 

I just noticed that the coil voltage on the one above 12v. I need a 120v coil.

 

It says 12 to 240 volt AC or DC power. Just means the internal relay operates on 12 volts.

Do you need a daily Timer? This one appears less complicated and available Here
Can program 8 settings each day.
The first ON setting is at 12:00 AM and runs for 1.5 hours then OFF for 1.5 hours. Repeats every 3 hours for settings 2 thru 8 for each day of the week.
This provides 24 hour operation activated by the start switch S1 anytime day or night.
Or use S1 to turn ON and OFF as needed.
BTW how many amps or watts are the heaters rated at?

 

I think this might work, but I'd rather have a proven device.
JOTTA 16A Multifunction Time Relay with 10 Function Choices JRT8-M2,AC/DC12V-240V
https://a.co/d/dVyanWH

Assuming your heater loads do not exceed the timer's contact ratings. The timer you linked to should do fine. What you want is called a Repeat Cycle Timer programmable for one hour intervals. Today this sort of timer is pretty common off the boat. Local manufacture carry a higher cost like this one for example. Just make sure whatever you choose can handle the current load of your heaters. Also make sure you use adequate wire gauge.

Ron

 

Point of Opinion: Running a heater up front for an hour then running a heater in back for an hour - I don't see that providing a comfortable environment. Half of the vehicle will be warm while the other is cold. Rather than switching back and forth it's my opinion you'd be better off circulating air between the front and back.

My woodshop heater seems to warm one side of the shop better than the other. I had recently modified a fan to run on a DC motor to circulate the air around the entire shop. Now the shop is much more comfortable. Formerly the heater would warm its environment and cut back while half the shop was not as warm. Circulating the air around has warmed the other half while the usually warm half has seen slightly cooler temperatures causing the heater to run a little more to keep its half warm. Inadvertently the other half of the shop is equally warm. Circulation - my opinion - is the way to go.

 

My woodshop heater seems to warm one side of the shop better than the other. I had recently modified a fan to run on a DC motor to circulate the air around the entire shop.

I have similar. I am in NE Ohio and it's cold, real cold. My home is a two story and I have a box fan at the top of the stairs moving the warm air down. It's just myself and two dogs and I seldom even get upstairs. The furnace runs much less and I am comfortable.

Ron