[Shtopor]

I posted below question on plumbing forum as I would like to hear from plumbers as Ineeded professional advice, apparently moderator didn't let me hear the answer to that question and sent me here, so her it is:
I need to use about 800 liters of water for irrigation of the greenhouse during 24 hour periods (so it is going to be every 30 mins around 20 litres in each go, most likely, water temperature should be between 16 celcius and 23C. How should I go about keeping temperature constant? DO I just install 1 tonn tank and heat it? but I didn't fund anything like it on the market, another way I thought was to have small tank with hot water (just like the one in household and use thermal valve to mix cold water from the in line and hot water from the hotwatertank, but I don't know if thremal valve can keep water at 19C plus/minus 2/3 degrees without too much deviation, besides all thermal valves are for hot water applications and I don't know if they can be adjusted for 'warm' water that I need. If someone has knowledge in this field please let me know. Thank you in advance.
Ps It is not marihuana grow up.

 

[oh'mike]

I'm just bumping this to the top for you----I don't have an answer for you.

 

[Shtopor]

So many topics appear daily. I will bump this one up, maybe someone knows an answer.

 

[Ron6519]

You might want to post this on a landscaping or garden forum as the speciality in detail it represents.
Ron

 

[Adam_M]

I might use a low temp boiler, something similar to a pool boiler with a storage tank just a small one set the temp really low, the second option might be a single wall flat plate heat exchanger if your only using a small amount of water it wouldn't be too bad. As it's for non potable water make sure you use a back flow preventer on your system feed water.