Exhaust fan on thermostat with option to exhaust in intervals

I have an exhaust fan that's plugged into a thermostat which kicks on my exhaust fan when the temp hits 80F. In veg that was fine but entering flower itd be nice to be able to have the exhaust fan kick on at set intervals (every 15 min or 30 minutes as needed) regardless of temp to help with exhausting the smell. But I don't want to get rid of the thermostat as it helps keep my temps in line. Is there any way of doing this other than adding a 2nd fan to exhaust for smell purposes? During lights on its all good coz it gets hot and the fan exhausts heat and stink from the room but during lights off the fan doesn't go on at all. I pasted below the link for the thermostat I have for reference. Any questions let me know and thanks for the help.

https://www.amazon.com/gp/aw/d/B011296704?psc=1&ref=yo_pop_mb_yo_pop_mb_pd_t2

The easy answer is no, if you are not confortable playing with electricity.

find a timer that switch a contact instead of an electric outlet

Something like this https://m.reichelt.com/de/en/Distribution-box-built-in-devices/ABB-DT1/3/index.html?ACTION=3&GROUPID=6651&ARTICLE=177958

Available at any electrical supply store. You have to install a plug to supply voltage to the timer and you use a normaly open contact to bypass the thermostat.

If you are confortable with welding i would open the thermostat and weld 2 wire directly on the relay inside to bypass it.

Another idea is to make a junction box alimented by the thermostat AND the timer. But this method is a bit dangerous, if you ever unplug the junction plug while the timer is on the plug will be live.

There's many option but they all involve you playing around electricity... Let me know i can elaborate if you are confortable with electricity!

owneal said:

I have an exhaust fan that's plugged into a thermostat which kicks on my exhaust fan when the temp hits 80F. In veg that was fine but entering flower itd be nice to be able to have the exhaust fan kick on at set intervals (every 15 min or 30 minutes as needed) regardless of temp to help with exhausting the smell. But I don't want to get rid of the thermostat as it helps keep my temps in line. Is there any way of doing this other than adding a 2nd fan to exhaust for smell purposes? During lights on its all good coz it gets hot and the fan exhausts heat and stink from the room but during lights off the fan doesn't go on at all. I pasted below the link for the thermostat I have for reference. Any questions let me know and thanks for the help.

https://www.amazon.com/gp/aw/d/B011296704?psc=1&ref=yo_pop_mb_yo_pop_mb_pd_t2

Click to expand...

Get a second fan and filter and use it on a timer to come on when lights are off. Dont exhaust it anywhere, just use it as an in room scrub while lights are off. Kills smell and wont change room temps.

HydroRed said:

Get a second fan and filter and use it on a timer to come on when lights are off. Dont exhaust it anywhere, just use it as an in room scrub while lights are off. Kills smell and wont change room temps.

Click to expand...

Good idea. I'll try that. Was thinking I'd need to exhaust it out of the room but I guess as long as it filters the stink out it'll be all good. Thanks for the suggestion.

Glenkush said:

The easy answer is no, if you are not confortable playing with electricity.

find a timer that switch a contact instead of an electric outlet

Something like this https://m.reichelt.com/de/en/Distribution-box-built-in-devices/ABB-DT1/3/index.html?ACTION=3&GROUPID=6651&ARTICLE=177958

Available at any electrical supply store. You have to install a plug to supply voltage to the timer and you use a normaly open contact to bypass the thermostat.

If you are confortable with welding i would open the thermostat and weld 2 wire directly on the relay inside to bypass it.

Another idea is to make a junction box alimented by the thermostat AND the timer. But this method is a bit dangerous, if you ever unplug the junction plug while the timer is on the plug will be live.

There's many option but they all involve you playing around electricity... Let me know i can elaborate if you are confortable with electricity!

Click to expand...

Definitely prefer to stay away from too much electrical work but appreciate the info. Thanks.