Heat pump?

sonson176

Well-Known Member
Plug and play HVAC=$$$

Whats your budget for this?

Assuming you know your way around brazing pipes, circulator pumps, etc; a nice used forced hot water furnace for several hundred dollars would be a wise investment. Then you would have the option of installing a heating coil or two in your ducting, radiators, reservoir warmers, and the ability to easily add quite a few separate zones to the system with just a solenoid valve, tubing, and a stat. Gives you a lot more options over forced air.

Regardless of your heating set up, make sure that room is insulated good as hell man. -35f is chilly, and I'd be surprised to see any kind of outdoor compressor survive long at all running in those conditions.
 

Johnny-mariseed

Well-Known Member
Plug and play HVAC=$$$

Whats your budget for this?

Assuming you know your way around brazing pipes, circulator pumps, etc; a nice used forced hot water furnace for several hundred dollars would be a wise investment. Then you would have the option of installing a heating coil or two in your ducting, radiators, reservoir warmers, and the ability to easily add quite a few separate zones to the system with just a solenoid valve, tubing, and a stat. Gives you a lot more options over forced air.

Regardless of your heating set up, make sure that room is insulated good as hell man. -35f is chilly, and I'd be surprised to see any kind of outdoor compressor survive long at all running in those conditions.
My budget in the whole project is $15000 usd. That's an empty 16x36 space. (Upstairs of a three car garage.) Insulation will be a must. It does get cold but it usually doesn't stay that cold more then a night or two and that's with windchill. Alot of people are switching to heat pumps..... I mean 'mini splits' around here. And by the way we call em "heat pumps" 'round these parts. Lol
240v is readily available and 200 amp service. I'll be growing in super soil and compost and feeding homemade tees.
oh and thanks for your input I appreciate your time.
 

patrickkawi37

Well-Known Member
My budget in the whole project is $15000 usd. That's an empty 16x36 space. (Upstairs of a three car garage.) Insulation will be a must. It does get cold but it usually doesn't stay that cold more then a night or two and that's with windchill. Alot of people are switching to heat pumps..... I mean 'mini splits' around here. And by the way we call em "heat pumps" 'round these parts. Lol
240v is readily available and 200 amp service. I'll be growing in super soil and compost and feeding homemade tees.
oh and thanks for your input I appreciate your time.
How many lights are you going to do? The mini splits are the way to go unless you want to buy a 5 ton house unit and run duct. 15k budget sounds low but I'm sure you can make it work if you do all the labor yourself
 

Johnny-mariseed

Well-Known Member
How many lights are you going to do? The mini splits are the way to go unless you want to buy a 5 ton house unit and run duct. 15k budget sounds low but I'm sure you can make it work if you do all the labor yourself
I'll be running 36 legal mature plants. I'm thinking 8 600 watt hid flowering lights and 4 t5s for veg. ALL work will be done myself. I'm very mechanical and done my own wiring in my last house. I was also a plumber for 15 years and always worked on my own cars and toys. I'll probably even install the mini split myself. I'm now thinking three heads one for veg, flowering and curing. Or do you agree with having a lung room and a.c unit in cure room? All advise is considered and appreciated. I've got a wide open floor plan....
 

since1991

Well-Known Member
If your only running 36 big gals i would most definitely use 5 to 8 1000 watt lamps instead of 8 600's. Better yet look into the newer double ended hps lamps. Traditional 600 watters in my experience just dont have the penetration that the 1000 watters have. They are more for short plants on tables and running alot more than 36. 600's are ideal for this (sog). For bigger bushes....go with 1000's . You will not have as much larf on the lower portions of the bushes.
 

since1991

Well-Known Member
Also if you want true seperate veg and flower rooms where your always on 12-12 in the flower part (perpetual - most efficient) you better have a little more than a few t5's for vegging nice short bushy ladies in your 18-6 veg room. Maybe a 1000 watt metal halide or even 2 . I use a tent 6x6 tent with 3 8 bulb t5's and i wish i would of just put a couple 1000 watt mh in there sometimes. Especially in winter. They get really nice really fast with the big lamps. T5's are nice but slower. Easier to deal with heat. Its a trade off i suppose.
 

Johnny-mariseed

Well-Known Member
Also if you want true seperate veg and flower rooms where your always on 12-12 in the flower part (perpetual - most efficient) you better have a little more than a few t5's for vegging nice short bushy ladies in your 18-6 veg room. Maybe a 1000 watt metal halide or even 2 . I use a tent 6x6 tent with 3 8 bulb t5's and i wish i would of just put a couple 1000 watt mh in there sometimes. Especially in winter. They get really nice really fast with the big lamps. T5's are nice but slower. Easier to deal with heat. Its a trade off i suppose.
Love the input dude. I just didnt want to pay the huge power bill on that many 1000 Watters. I know the 600s are more efficient that's all. But as long as Noone comes on here and says your wrong... 1000s it is! What about vegging with 600s I have two cool tubes now is all and enough fan for my veg room. Just hate to waste them. Suppose you can never have enough lights kicking around....
I'm not worried about heat really I can run the lights seperate in and out to the outside. And still run a lung room with the mini split. Could even still run co2 later if I wanted easy.
 

since1991

Well-Known Member
Yeah when running bigger setups the 9% increase in efficiency of 600 watters is rather negligible at best. Truth be told its not really noticeable compared to what you WILL notice with the bigger wattage lamps. Your only running 36.....might as well make them BIG. And with a bunch of smaller 600's.....you will get a big plants....but alot of stem, leaf, and larfy popcorn under the main canopy that could of turned into more solid smokeable buds had you went with the bigger 1000 watters. Its all about penetration and what stype of plant you grow. 600's.....they have their place. In Europe they run whole tables of one to two foot identical cuttings and jam them as close as 4 or 6 per square foot. And in huge greenhouses where 600's are really supplemental lighting. This is where 600's work great. Personally....before i got into the newer double ended lamps i ran both 600's and 1000's. The 1000's i ran fewer bushy 3 to 5 foot trees and the sixers i would run 2 per 3x6 table and pack 21-28 on gallon growbags of coco with a drip to waste manifold and crank out 2 foot plants yielding about 2 zipppers a piece. Oh and for vegging with sixers.....go for it i say!!!! As long as you control the heat anything HID lighting is going to rock n roll in veg....especially if you slap a 600 watt halide bulb in there instead of hps....but both will work. Get that bluer light in thier for compact bushy growth where the leaves "pray" towards the light (positive phototropism). They love blue light in veg.
 

Djloud

Active Member
Working on a new grow room/warehouse. Multiple rooms flower, veg., cure, extraction, mother. Contomplating using a "heat pump" for my heating and cooling. Basically will be the upstairs of a three car garage... heat pump would be installed in the main area and all air pulled from there thru each room individually or possibly from main area thru flower room into veg. Room and back to main area. What do you think?
U can get heat pumps with multiple zones that run on one condenser unit. U can find great prices. Mine is an ais con 12000btu and i only paid 750 with free shipping. So u could probably get a dual zone for not much more than 1000 depending on the size unit of course.
 

bluntmassa1

Well-Known Member
Well what I would probably do is get a few propane space heaters and run a closed room the heat will make your CO2 so you can basically kill 2 birds with one stone. Damn sure don't use a kerosene heater they stink.
 

Johnny-mariseed

Well-Known Member
Yeah when running bigger setups the 9% increase in efficiency of 600 watters is rather negligible at best. Truth be told its not really noticeable compared to what you WILL notice with the bigger wattage lamps. Your only running 36.....might as well make them BIG. And with a bunch of smaller 600's.....you will get a big plants....but alot of stem, leaf, and larfy popcorn under the main canopy that could of turned into more solid smokeable buds had you went with the bigger 1000 watters. Its all about penetration and what stype of plant you grow. 600's.....they have their place. In Europe they run whole tables of one to two foot identical cuttings and jam them as close as 4 or 6 per square foot. And in huge greenhouses where 600's are really supplemental lighting. This is where 600's work great. Personally....before i got into the newer double ended lamps i ran both 600's and 1000's. The 1000's i ran fewer bushy 3 to 5 foot trees and the sixers i would run 2 per 3x6 table and pack 21-28 on gallon growbags of coco with a drip to waste manifold and crank out 2 foot plants yielding about 2 zipppers a piece. Oh and for vegging with sixers.....go for it i say!!!! As long as you control the heat anything HID lighting is going to rock n roll in veg....especially if you slap a 600 watt halide bulb in there instead of hps....but both will work. Get that bluer light in thier for compact bushy growth where the leaves "pray" towards the light (positive phototropism). They love blue light in veg.
Yeah when running bigger setups the 9% increase in efficiency of 600 watters is rather negligible at best. Truth be told its not really noticeable compared to what you WILL notice with the bigger wattage lamps. Your only running 36.....might as well make them BIG. And with a bunch of smaller 600's.....you will get a big plants....but alot of stem, leaf, and larfy popcorn under the main canopy that could of turned into more solid smokeable buds had you went with the bigger 1000 watters. Its all about penetration and what stype of plant you grow. 600's.....they have their place. In Europe they run whole tables of one to two foot identical cuttings and jam them as close as 4 or 6 per square foot. And in huge greenhouses where 600's are really supplemental lighting. This is where 600's work great. Personally....before i got into the newer double ended lamps i ran both 600's and 1000's. The 1000's i ran fewer bushy 3 to 5 foot trees and the sixers i would run 2 per 3x6 table and pack 21-28 on gallon growbags of coco with a drip to waste manifold and crank out 2 foot plants yielding about 2 zipppers a piece. Oh and for vegging with sixers.....go for it i say!!!! As long as you control the heat anything HID lighting is going to rock n roll in veg....especially if you slap a 600 watt halide bulb in there instead of hps....but both will work. Get that bluer light in thier for compact bushy growth where the leaves "pray" towards the light (positive phototropism). They love blue light in veg.
Nice write up man. Thank you!
I appreciate your time.
So right now I have 1200 watts in a 4x7 foot print. I'm pulling two zips per plant all organic soil. Compost, 4 diffrent manures and happy frog mix. I do feed big bloom during flowering lightly. When I'm in my new space I will be looking at longer veg/bigger trees. What's your input on light placement and room size on 36 big ladies?
 

Johnny-mariseed

Well-Known Member
U can get heat pumps with multiple zones that run on one condenser unit. U can find great prices. Mine is an ais con 12000btu and i only paid 750 with free shipping. So u could probably get a dual zone for not much more than 1000 depending on the size unit of course.
Thanks for the input. Did you install it yourself? How difficult is it? Pretty much a plug and play.like I said i've plumbed boilers and installed on demand a ate heaters but I'm wondering about "special tools".
 

Johnny-mariseed

Well-Known Member
Well what I would probably do is get a few propane space heaters and run a closed room the heat will make your CO2 so you can basically kill 2 birds with one stone. Damn sure don't use a kerosene heater they stink.
That's an excellent idea! And cheap! I wonder how accurate their thermos are though. Anyone else have input on this idea? I do have an old forced hot air furnace kicking around though...I'd have to fill a propane tank. I will be running a sealed room except my light heat will be directed outside in the summer via its own ducting system with a y and dampers for diffrent seasons.
 

since1991

Well-Known Member
Nice write up man. Thank you!
I appreciate your time.
So right now I have 1200 watts in a 4x7 foot print. I'm pulling two zips per plant all organic soil. Compost, 4 diffrent manures and happy frog mix. I do feed big bloom during flowering lightly. When I'm in my new space I will be looking at longer veg/bigger trees. What's your input on light placement and room size on 36 big ladies?
I would try 9 1000 watt lamps. 4 for each lamp. I know it sounds like alot but its really not. Depending on how high your ceilings are determines wheither u can go double ended or not. With de go with about 5000 btu per lamp of ac. With single ended but non air cooled go with 3500- 4000 btu of ac per. With air cooled hoods....dont bother. Those are such a pain unless you just got one or two in a tent. I would go with 4x4 10 " deep beds of coco coir or 5x5 beds if you can make 1000 watt double endeds work (8.5 ft ceilings mminimum) Raised beds and net trellis really only works if you plan to veg in the main room (beds for full roots and full net trellis isnt practical for a seperate veg room....most pros dont really run perpetual veg rooms for this very reason). If running perpetual and truly seperate veg room use big pots and tomato cages. This is most efficient as you can bang out crops whenever....saves money...your not bound by the main room veg....but be forewarned...seperate rooom perpetual is ALOT of work and if you get bugs or powdery mildew....your fukt. Those big buds will get floppy though so use some kind of canopy support. Use water wands with hoses and pumps if you wanna be there everyday....use a simple drip system manifold plugged to multiple trashcan 40-50 gallon reservoirs if not. Plan on what your going to do with run off waste water. You can even get fancy with raised beds by putting them on casters to wheel em about. This is an advantage cuz u can jam your lamps and beds closer together for more light overlap instead of wasting light on walkways....you make your own walkways if you can wheel your beds or tables around.
 
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Johnny-mariseed

Well-Known Member
Awesome ideas man! I been shy for awhile from the site. Been busy with some new strains. I like the idea of wheeling carts but doorways would be a bitch I feel. I don't think my budgets going to afford double enders I'm thinking 1000 watt raptors maybe?? My ceilings are 8 ft so the skys the limit....almost. I really feel that adjusting the heights on 9 hoods sounds like a bitch also though. I dunno I been thinking about vertical or rather bleacher growing with bare bulbs down the middle at a couple diffrent hights.
Right now I'm getting all my ideas and thoughts and research lined up and hopefully start the new build this fall?? I have a vast amount of plumbing knowledge so I can invent all kinds of cool shit. ; )
 

Johnny-mariseed

Well-Known Member
U can get heat pumps with multiple zones that run on one condenser unit. U can find great prices. Mine is an ais con 12000btu and i only paid 750 with free shipping. So u could probably get a dual zone for not much more than 1000 depending on the size unit of course.
How much space are you heating/cooling with this unit?
 
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