Elephant trap plug in thermostat for tube heater

[Halo]

I
Bought one of these It works ok but has a problem . If the electric goes off it automatically re-sets to 20C so it will be on all the time until I reset it. I have now bought a low tech room stat and mounted it on a board . Much better solution
so

 

[[2574]]

I bought a Ketotek controller which has operated fine and doesn't default temperature when power goes off. See https://www.amazon.co.uk/KETOTEK-Thermostat-Temperature-Controller-Refrigerator/dp/B097876ZZZ if interested.

 

[dunedin]

I
Bought one of these It works ok but has a problem . If the electric goes off it automatically re-sets to 20C so it will be on all the time until I reset it. I have now bought a low tech room stat and mounted it on a board . Much better solution
so View attachment 127106

We have a similar thermostatic plug switch, but a different make, which has an AAA battery inside it which retains the settings (unless the battery fails)

 

[greeny]

I just leave the 2 tube heater on all the time. At 100 watt each they would never raise the temperature that much to be of concern. What size tube heaters are you running.

 

[dunedin]

These tube heaters have built in thermostat https://www.amazon.co.uk/gp/product/B00PIV7NJC/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

 

[penfold]

I
Bought one of these It works ok but has a problem . If the electric goes off it automatically re-sets to 20C so it will be on all the time until I reset it. I have now bought a low tech room stat and mounted it on a board . Much better solution
so View attachment 127106

Unless they're very low spec they should have a rechargeable battery or capacitor inside to keep the memory going during interruptions; ask for a refund.

 

[Spirit (of Glenans)]

I just leave the 2 tube heater on all the time. At 100 watt each they would never raise the temperature that much to be of concern. What size tube heaters are you running.

On that account, anyone who still has a couple of 100W festoon bulbs lying around would not even have to buy a tube heater!

 

[Hydrozoan]

I use one of these, as a thermostat not a timer. Electronic Plug In Thermostat & Timer | Timeguard (TRT05) (tlc-direct.co.uk)

AFAIK it has retained the setting on power interruption - it contains a rechargeable button cell, though one must remember to keep that charged by plugging it in at home occasionally when not in use on the boat.