User Tag List

Informational! Informational!:  0
Likes Likes:  0
Page 1 of 3 123 LastLast
Results 1 to 8 of 21

Thread: Heating the greenhosue...

  1. #1
    Admin- I'm growing CPs in the Desert of Tucson, Az. adnedarn's Avatar
    Join Date
    Jul 2001
    Location
    Tucson, Arizona USA
    Posts
    8,432
    Mentioned
    6 Post(s)
    Tagged
    1 Thread(s)
    Hello- I have a greenhouse that is said to need approx 12,000 BTU for heating. I only have 110v in the g/h and no natural gas. I see that natural gas heaters can also come as propane... But is this really a okay way to go? I don't want to be chainging tanks daily or anything. The problem with running 220v or natural gas- is permits and such... I guess if they are definatly the "best" way to go I can look into it... But I'd rather look into using propane if anyone has anything to say
    Thanks!
    Andrew
    -Andrew
    Owner of TerraForums, FlyTrapShop.com, and cpforums.org.
    Support FlyTrapShop, support TerraForums! www.flytrapshop.com

  2. #2
    Nepenthes Specialist nepenthes gracilis's Avatar
    Join Date
    Sep 2001
    Location
    Alexandria Bay, NY Z-5a
    Posts
    6,341
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Considering heating and BTU's Propane /gal contains approx 93,000 BTU's Kerosene contains 240,000BTU's /gal , Oil about 150,000 /gal, etc etc. I wouldn't do electricity unless u get it for cheap. For conversions from NG to LP, its completely safe, buy a 100 pounder (53 gallon) propane tank for your fuel, you may have to refillit 1 time every 2 weeks depending on what you lowest winter temperatures are. (What are they?) So, on propane you'd use approx. .13 of a gallon for 1 hour of heating..id say thats pretty darn good.

  3. #3
    Admin- I'm growing CPs in the Desert of Tucson, Az. adnedarn's Avatar
    Join Date
    Jul 2001
    Location
    Tucson, Arizona USA
    Posts
    8,432
    Mentioned
    6 Post(s)
    Tagged
    1 Thread(s)
    We barely ever reach freezing... So I'd say setting 30f for my low is safe. Is there a problem with over sizing a heater? (Like oversizing ac is a problem....) 53 gallons every 2 weeks... that sounds expensive.
    -Andrew
    Owner of TerraForums, FlyTrapShop.com, and cpforums.org.
    Support FlyTrapShop, support TerraForums! www.flytrapshop.com

  4. #4
    Cardiac Nurse JB_OrchidGuy's Avatar
    Join Date
    Apr 2005
    Location
    SC
    Posts
    3,818
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    Why is oversizing an AC a problem? My brother in law said an AC guy told him use a half ton larger unit on the outside than the inside unit and it cools better. To me it would use less because your pumping more cold for less space so it would have to run less. I figure the same for heating. The more you have the faster it can heat the less it has to run. Propane is safe to use. It just needs to be properly installed. I use electric personaly, and I want to go to 220V but need to run it. I will get my brother in law to do it. 220 is more efficient than 110.
    JB
    Friend me on facebook with JB_orchidguy@yahoo.com.
    Growlist Updated 05/08/13

  5. #5
    Admin- I'm growing CPs in the Desert of Tucson, Az. adnedarn's Avatar
    Join Date
    Jul 2001
    Location
    Tucson, Arizona USA
    Posts
    8,432
    Mentioned
    6 Post(s)
    Tagged
    1 Thread(s)
    One of the benifits of running AC is dehumidifying... If the AC unit is too big... The air doesn't pass over the coils as much as it "should" so the air ends up staying humid... thus not feeling as cool as it could inside your house. That's the main reason. Thanks for calling Whirlpool/Kitchinaid. I hope you have a wonderfull day! (Yah, I worked tech support for them one time for a few years and that's what they said... LOL)

    As far as electricity goes... I'm just using an extention cord for my 110v already.. So getting 220 out there would be quite a feat...



    -Andrew
    Owner of TerraForums, FlyTrapShop.com, and cpforums.org.
    Support FlyTrapShop, support TerraForums! www.flytrapshop.com

  6. #6
    Cardiac Nurse JB_OrchidGuy's Avatar
    Join Date
    Apr 2005
    Location
    SC
    Posts
    3,818
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    Not really. Its expencive for the lines, but not that dificult to set up. Also Since your running an extention cord how many heaters and what size wire are you using? I have 2 1000 watt milkhouse heaters and running a 12 gauge extention cord. I have it hard wired into boxes on either end because the plugs got hot so now I have boxes with standard plugs to relieve the heat. I was running a 3 way splitter and one of those ends just toatly melted and was singed. I;m glad it didn't start a fire. But with the normal electrical box that now has 4 plugs everything is cosher for the time being. I will be hard wiring my GH in after the rebuild. I am hoping to run 220 out there because I want to power my shed too. Wire is just pricey. Then you need to have an extra box off your main box for it too, but I already have that from my hot tub. There is already 220 run to it and I just came off it with a 110 breaker for the GH at the moment.

    Propane is said to put off more heat than electric, but I think its more expencive to run. I get by with 2 1000 wat milkhouse heaters and it keeps my GH around 55 to 60 depending how cold it is outside. The key is to have a fan circulating the heat around the GH. I might have to add another heater this winter because of the expansion, but I might set the GH up to have a cold zone for thigns that like to get chilly. I duno yet the GH is not built. Hopefully will get started this week. Dang it sucks having to rely on help!!!
    JB
    Friend me on facebook with JB_orchidguy@yahoo.com.
    Growlist Updated 05/08/13

  7. #7
    Admin- I'm growing CPs in the Desert of Tucson, Az. adnedarn's Avatar
    Join Date
    Jul 2001
    Location
    Tucson, Arizona USA
    Posts
    8,432
    Mentioned
    6 Post(s)
    Tagged
    1 Thread(s)
    Right now I don't have any heaters... This is a new g/h since this spring. I think my extention cord is a 10 gauge.. it's a monster. In my smaller g/h i had a 1500watt oil filled radiator style.. and I dont' think it did very good in there.. so I really don't think it'll even dent the new house.. That's why i'm looking for somethign better.
    -Andrew
    Owner of TerraForums, FlyTrapShop.com, and cpforums.org.
    Support FlyTrapShop, support TerraForums! www.flytrapshop.com

  8. #8
    Cardiac Nurse JB_OrchidGuy's Avatar
    Join Date
    Apr 2005
    Location
    SC
    Posts
    3,818
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    Dang a 10 gauge!!! I didn't know they made those. Any who. Hard wire it into a socket. Black to back and white to white because plugs notoriously get hot! Then on the end in the GH get yourself a dual socket box and hard wire the other end into the 4 plugs and mount it someplace in the GH. Get yourself one of those fancy new covers that keep the plugs covered while things are plugged in. Then go to walmart or lowes and get the 1000 watt milkhouse heaters. They have a high and low setting. You are going to need to get thermestats for them too though because the ones that are built into the heaters STINK. Your 10 guage wire will be able to handle current drawn from both heaters. How big is your GH? Mine has a base of 12x12 and the peak is 9 foot tall and the two I have heated it well enough to keep my orchids alive. If you only plan on keeping it above 30 then you need to bring in your orchids because those Catts will not survive that cold of temps.

    Your absolutely correct about the oil filled heaters. They stink! I tried that first and took it back. Thats when I got the milkhouse heaters from lowes. They cost me only around 17 dollars each and have lasted 2 years so far. Again I built my own thermastat to use with them because the ones that come built in are unreliable!!
    JB
    Friend me on facebook with JB_orchidguy@yahoo.com.
    Growlist Updated 05/08/13

Page 1 of 3 123 LastLast

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •