I'm looking for away to monitor and remotely control the pool temperature. I have an older Raypak gas heater and was hoping for something that can read the existing thermostat. Is there anything that I can use for this?
So you're not controlling the temperature per se, you're just power cycling the heater? This would also work for me. It's going into my home that's going to be up for short term rental, last thing I need is to have my pool at 90 degrees for months at a time.I don't know of any systems that can read and use the heater's internal thermostat for automation. You would need to install a temp probe for remote temp control, which really isn't that difficult. Here's a link that shows my install.
Wifi Water Temperature Sensor
I am looking to add a WIFI pool water sensor so I can remotely check my water temp from my iPhone... Doing research... it looks like I can use a Sonoff TH16 and a ds18b20 sensor plumed into my system to achieve this... I am not looking to do any type of automation... just read water temp... I...www.troublefreepool.com
I use a Sonoff TH-16 with temp probe to monitor temps and control my Pentair heater. Sonoff replaced the TH-16 with a better unit that now provides dry contacts for connection to the fireman's switch. It's controlled by the eWeLink app which is compatible with Alexa/Google Home apps. It looks like you need to order the probe separately. Here is the updated unit:
https://www.amazon.com/SONOFF-Origin-Temperature-Humidity-Monitoring/dp/B0B5GM1LTG?th=1
I will look into doing that. Just be nice to turn it on and off without getting in and out of the hot tubThe Sonoff is connected to the fireman's switch in the heater and is designed to simply interrupt the call for heat. After installing the relay switch, the thermostat is set to the highest setting on the heater's control panel, signaling a call for heat. That allows the Sonoff switch to control heat settings by opening and closing the fireman's switch. You can always set heater's thermostat to a lower setting to set a maximum temp. The Sonoff switch can't override the heater's setting.
Check your heater's owners manual to ensure the ability to connect automation to the fireman's switch. This article probably explains it much better than I can...
Heater Control with Automation - Further Reading
www.troublefreepool.com
found the following video for my heater and confirm that I have the 7 pin remote harness.The Sonoff is connected to the fireman's switch in the heater and is designed to simply interrupt the call for heat. After installing the relay switch, the thermostat is set to the highest setting on the heater's control panel, signaling a call for heat. That allows the Sonoff switch to control heat settings by opening and closing the fireman's switch. You can always set heater's thermostat to a lower setting to set a maximum temp. The Sonoff switch can't override the heater's setting.
Check your heater's owners manual to ensure the ability to connect automation to the fireman's switch. This article probably explains it much better than I can...
Heater Control with Automation - Further Reading
www.troublefreepool.com
Don't be an idiot like me and buy an RJ11 wire and cut it before looking. It's an RJ9 connector with 4 pins. I bought RJ9 connectors and attempted to do my own crimping but for some reason the crappy connectors on amazon refuse to make contact. I ended up order a 10ft RJ9 cable, cut it in half, solder the wires and heat shrink.I’ve been looking for a similar solution and we seem to have the same setup.
Did you use the dry contacts on the Sonoff to connect to the remote harness? Are you using the temp probe, or just the on/off ability?
Love it. Was it theDon't be an idiot like me and buy an RJ11 wire and cut it before looking. It's an RJ9 connector with 4 pins. I bought RJ9 connectors and attempted to do my own crimping but for some reason the crappy connectors on amazon refuse to make contact. I ended up order a 10ft RJ9 cable, cut it in half, solder the wires and heat shrink.
This is exactly what I bought here. You must get the THR316D with the LCD version since it's the one with dry contact. All of this can be purchase on ALi for half the cost of amazon but I did not have 3 weeks to wait.
Sensor
A PVC T that's size to your plumbing, mine was 1 1/2
Have it in home assistant in no time.
View attachment 483463
get the 50mm that's roughly 2 inches that should get the probe pass the opening.Love it. Was it the
1/2 inch ds18b20 Temperature Sensor Probe that you used? How did you add the SMA and where did you pull power for the Sonoff?
Thanks Les