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well hello everyone, 1st let me say i am new to the site but have been reading it for the last 6 months, i've got over 10 years and still trying to learn more, anyways, i would not endorse any product on this site BUT THIS IS THE ONLY WAY TO GO. i have been using co2 generators for over 5 years. until i used one of these water cooled generators i always had to use aluminum ducting 40'-80' coiled outside (like a radiator) with 2 6" vortex fans to cool co2, a real pain in the ass no matter how ya do it. so i went to youtube and, hell, what can i say, they sold me and for $400 plus another 400 for a water chiller i figured why not try it. HOLY CHIT...this is by far the greatest new invention for the grow room in the last 5 years. if you are thinking of using a co2 generator this is not a option BUT A FRICKIN MUST. i will spread the word because this can be a lifesaver and a no problems solution to co2 enrichment....ANYWAYS HOPE THIS HELPS SOME OF YOU OUT. HydroGEN Water Cooled CO2 Generator
The HydroGEN is the world's first and only water cooled CO2 generator, capable of removing 86% of the heat produced by burning propane or natural gas. It also has loads of other options and features not available in any other CO2 generator on the market, including a completely adjustable flame (can produce anywhere between 15 and 45 cubic feet of CO2 per hr), an adjustable water flow valve, no pilot light (flame is activated by water flow), a tipover cut off, an overheat shut down sensor, and an oxygen depletion sensor among other things. The unit is compact in size and can be either hung or wall-mounted anywhere in your garden.
Everyone should know by now that adding CO2 can increase yields by 100% or more. But everyone also knows the drawbacks, primarily heat production from burners or expense and inconvenience of bottled CO2 . The HydroGEN burns gas like other units but has a few added features, the main one being the water-cooled heat exchanger mounted above the flame. Cool water is pumped through the heat exchanger and back to a reservoir or is drained to waste. If using a reservoir you would either need a water chiller, heat exchanger or a large reservoir (all outside the grow room) to remove the heat from the water.
(1) The most economical way to cool the unit is drain to waste but we all want to be eco-friendly so we should only do this if using waste water to cool with, such as RO waste, waste nutrient water (somewhat-filtered), or even rain water. Doing this allows you to get two uses out of your water before dumping it.
(2) If this isn't convenient for you, it's also energy efficient to circulate room temperature water from a larger sized reservoir located outside your room. Barrels, plastic tubs, and even small above ground swimming pools can be bought for less than $75 and make excellent reservoirs.
(3) The third most efficient method is to use a HydroGEN heat exchanger, which is a wall mount heat exchanger with an attached fan, mounted inline on the hot water discharge hose. The hot water would pass through the heat exchanger and the attached fan draws out most of the heat before it's dumped back into your reservoir. The heat exchanger and fan must be mounted OUTSIDE the grow room and must be installed in the hot water discharge of the HydroGEN to be effective.
4) The least economical cooling method is using a chiller (also housed outside the grow room) but is very convenient because you can use as little as 5 gallons for a reservoir. Even though we say using a chiller is the least economical way of cooling, it's still vastly more economical than using a/c to compensate for heat production.
Everyone should know by now that adding CO2 can increase yields by 100% or more. But everyone also knows the drawbacks, primarily heat production from burners or expense and inconvenience of bottled CO2 . The HydroGEN burns gas like other units but has a few added features, the main one being the water-cooled heat exchanger mounted above the flame. Cool water is pumped through the heat exchanger and back to a reservoir or is drained to waste. If using a reservoir you would either need a water chiller, heat exchanger or a large reservoir (all outside the grow room) to remove the heat from the water.
(1) The most economical way to cool the unit is drain to waste but we all want to be eco-friendly so we should only do this if using waste water to cool with, such as RO waste, waste nutrient water (somewhat-filtered), or even rain water. Doing this allows you to get two uses out of your water before dumping it.
(2) If this isn't convenient for you, it's also energy efficient to circulate room temperature water from a larger sized reservoir located outside your room. Barrels, plastic tubs, and even small above ground swimming pools can be bought for less than $75 and make excellent reservoirs.
(3) The third most efficient method is to use a HydroGEN heat exchanger, which is a wall mount heat exchanger with an attached fan, mounted inline on the hot water discharge hose. The hot water would pass through the heat exchanger and the attached fan draws out most of the heat before it's dumped back into your reservoir. The heat exchanger and fan must be mounted OUTSIDE the grow room and must be installed in the hot water discharge of the HydroGEN to be effective.
4) The least economical cooling method is using a chiller (also housed outside the grow room) but is very convenient because you can use as little as 5 gallons for a reservoir. Even though we say using a chiller is the least economical way of cooling, it's still vastly more economical than using a/c to compensate for heat production.
