Return to the Growing from Seed Forum | Post a Follow-Up

Heat source for seed starting

Posted by japus 5 (My Page) on
Wed, Feb 13, 13 at 21:48

I've been using crock pots (slow cookers ) for many years as a warming tool for epoxies, etc.
I thought why not try it for warming seed starting areas.The pic has a 4 level stand with grow lights on top.
A seed starting kit, self watering, have lettuce, spinach, kohlrabi, and broccoli in there now.
Under neath I have a smaller size crock pot,full of water, set on low with the lid off, water temp stays at 135 degrees F.
When the rack is closed temps stay at 75 degrees.
This is my very first attempt at starting seeds inside.
I just started these today, hopefully it will work.
Crock pots are great low temperature units, the base does not get overly hot with the cover off.
Now if cover is on that's another story
This is my first attempt at seed starting inside

Follow-Up Postings:

RE: Heat source for seed starting

Interesting, and very different approach. :)

Since your shelves are tented (enclosed) you can accomplish a similar result by using an incandescent light fixture inside the tent. A 60 watt bulb puts out a fair amount of heat, a 100 watt bulb even more so in an enclosed area.

Still not a direct-to-the-soil heat source of course but can work.


RE: Heat source for seed starting

I've been using my homemade rice heating pads placed underneath a baking sheet with the seeds on top of that, tented with a plastic cover, but this seems like a much better way to keep consistent heat for a longer period of time! Thanks!

RE: Heat source for seed starting

I have two 2foot grow lights hanging above the seed starter.
Last night after I shut the lights off I noticed temps went down to low 60s.
Apparently the lamps give enough heat to raise temperature.
Went back up to mid 70s today after lights were back on.
I need to get a humidistat to check on humidity, I'm thinking it's good with the moisture on the inside walls. I realize everything needs to be opened up when sprouting occurs.
This is all experimentation,. which I enjoy doing.Sometimes I think more than actual gardening.....

RE: Heat source for seed starting

Can anyone believe this ?
Not sure if I even do, or maybe it isnt unheard of and I am unaware.
The image here are of the seeds 48 hours after leaving the package

RE: Heat source for seed starting

There are some great ideas in this thread! I usually just put my seed starting kit on top of the fridge. It's warm up there and they can't get bumped (I have children and a dog). This year, however, as we have moved into a new house, my cats love to sit on top of the fridge and nock everything down up there. Needless to say I am looking for a new setup this year.

RE: Heat source for seed starting

Lights are a good source of heat. Here in Texas when we expect a freeze that could kill some tender plants we wrap a cage around that plant using what ever kind of structure that will surround and cover the plant most wrap this with plastic being sure it does not touch the plant. We place lights inside the structure for the heat source creating a small greenhouse. I am finding uses for those empty plastic milk cartons. By cutting the bottoms our and placing them over plants such as tomatoes as they stop producing as soon as it hits 95 which comes too soon in our area. I have also started to cut a hole in the bottoms of those plastic ice cream containers, leaving a flap which can be closed at night if the temps will drop too low for good growth. I am also thinking about maybe using other small white frosted containers for seed starting here in our area with a hole cut on the bottom for venting during warm days to prevent too much moisture build up. Again Thanks for the wonderful posts on gardenweb.

 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!

Return to the Growing from Seed Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Please review our Rules of Play before posting.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.

Learn more about in-text links on this page here