EcoRenovator - View Single Post - Aquaponics System, Passive Solar Greenhouse build

pinballlooking · 06-26-15, 10:53 AM

I will be putting in a couple solar collectors to heat the fish water in the winter. Their water will still need some heat in the winter at night or cloudy days.

I just ordered this vent free gas hot water tank. I know I have solar power and this is natural gas hot water. But this will also heat the greenhouse being vent free. When the greenhouse is closed up in the winter it needs some CO2 this will give the plants some CO2. Providing the plants CO2 can really help their growth.
This heater will be a closed loop system with I think a coil like this one.
1/2" x 50' Stainless Wort Chiller with Garden Hose Fittings.

I will need to get a digital heater temperature controller that will turn on and off a pump that will be in the closed loop for the water heater.

I will base my build kind of off the system that is sold for almost $1,400
AquaHeat Gas-Fired Heating System

Do they make plate heaters with no copper?
Which is more efficient plat heater or the coils like this one?

They sent me the install doc. They require a Plummer install it for warranty just like the big guys.
It is strange to turn it on they say 20 psi it is usually flow that turns them on not pressure.
I wonder if I will have an issue turning it on in a closed loop system with a low wattage pump.

06-26-15, 10:53 AM	#203
pinballlooking Super Moderator Join Date: Jun 2013 Location: SC Posts: 2,923 Thanks: 172 Thanked 564 Times in 463 Posts	I will be putting in a couple solar collectors to heat the fish water in the winter. Their water will still need some heat in the winter at night or cloudy days. I just ordered this vent free gas hot water tank. I know I have solar power and this is natural gas hot water. But this will also heat the greenhouse being vent free. When the greenhouse is closed up in the winter it needs some CO2 this will give the plants some CO2. Providing the plants CO2 can really help their growth. This heater will be a closed loop system with I think a coil like this one. 1/2" x 50' Stainless Wort Chiller with Garden Hose Fittings. I will need to get a digital heater temperature controller that will turn on and off a pump that will be in the closed loop for the water heater. I will base my build kind of off the system that is sold for almost $1,400 AquaHeat Gas-Fired Heating System Do they make plate heaters with no copper? Which is more efficient plat heater or the coils like this one? They sent me the install doc. They require a Plummer install it for warranty just like the big guys. It is strange to turn it on they say 20 psi it is usually flow that turns them on not pressure. I wonder if I will have an issue turning it on in a closed loop system with a low wattage pump. Attached Images Last edited by pinballlooking; 06-26-15 at 03:42 PM..