Well N A, The Tankless Water Heater is the Bomb!

LF what type of contoller are you useing? It seems that it going to be the most expensive part of all but it also necassary right?

Yes and yes. You can sorta get by without a controller but to be quite honest, you really can't. To do it right you just have to bite the bullet and buy a controller. I have a CAP xgc1. I found it on crags list for $400. It's pretty pimp but I don't use many of the features simply because they are controlled independently ( air con, dehu, lights). So any decent ppm controller will work. It is allot to swallow but I promise that if you have warm temps and bright lights, the effects of high co2 will shock you.

thanks LF I think i'm going to go this route. With me new room setup i have 3000w and with outside temps of like 60 i can keep it at 78 just exhausting all the time,but comesummer it'llbe regularly 90 outside and a 20 degree spike from that would be "no bueno". I do have ac but when i runit i have to shut the exhaust off or it just gets sucked out. Is your window ac the walmart 5000 btu kind thats what i got and i think it'll be plenty for my room. on another note do you think that if you set your controller to come on at 1400 and off at 1425 it would be better since you say it over shoots the desired range by a few hunderd ppm? I dont know if you can but might be worth a try.

Well with a co2 generator it's simply an on off. They can run the fuzzy logic system with a gen. If I set I at 1500 it turns on at about 1425 and shuts off and 1500 then climbs to about 1650. I have a fan that blows the co2 towards the controller to help. I did a google search an there is a cap3 or something that is $379 I might be able to score one wholesale if your interested.

(thanks for helpin out with me search. I was looking at the same thing but it only has a 1/2 amp load which isn't enought for any pump. I think i'll have to bite the bullet and go wiht a sentinal cppm-4 or a titan atlas-1. Suck cause there both like 450 bucks or more but i did find a sweet little tankless for 105 bucks shipped ( eccotemo 5L) is just a bit smaller than yours. I also think i'll run propane tanks as I dont want to run gas lines thru me whole house. it says 18 hours of hot water per tank that should last atlest a month

Yeah, that should last at least a month. I used rubber garden rose to run the lines to the rez, works nice. real rubber, not that super cheap looking green shit. I'm surprised the CAP only has a 1/2 amp capability on that swtich. You might call cap. I know that someone simply wired a little relay to theirs to bypass this. The relay basically turns on the power to a circuit that the pump is plugged into.

Just a thought.

yeah I'll look into that. As far as the hose i have like 75' of the cap rubber hose for the E&G probably just use that.

Cool. This is the water pump I have. It was recently on sale for like $35. Works awesome. Actually bought a second one for draining my reservoirs. Takes like 5 minutes to drain 50 gallons and deposit in my utility sink across the room.

http://www.harborfreight.com/1-4-qua...ump-98342.html