Where to find traditional Thai herbal steam sauna?

[LenkaMarie]

Hey guys i used to stay at a temple and they had this amazing really lowkey herbal sauna, i found one in a Wat in Bangkok too. Also when i go to Vientianne there is this really cheap but effective place. I am not looking for those high end luxury spots where you spend 500 baht for 30 min. I am looking for a real thai herbal steam place with the locals steaming all day... Anybody knows of a temple or a spot where you can go?

[Big Boy]

Wat Khao Din accessed from Sois 112 and 116 would fit the bill.