I have been running experiments on rooting. I put a group of cuttings, on top on my frig and then put a another group on top of my hot water heater! You will not believe how much faster, the cuttings on the hot water heater rooted!! I use the top of my hwh last year, but did not check to see how much faster it was, compared to the frig......Try this out and see for yourself!! The cuttings on the Frig, averaged about 25 days, the ones on hwh averaged around 18 days....,These cuttings were both using slightly moisten Coir in a small clear plastic box, with a snap on top.......Never even aired  them out any....Hope this helps someone!  :)

Frank, I've thought about doing this a couple times but have instead usually used a heating mat under a plastic bin.  Were your cuttings in plastic boxes or in 1 gallon bags?  Did you place anything between the surface of the hot water heater and the plastic box/bag?  I suppose the safest thing to do would be to put a temperature probe in the plastic box or bag to make sure the temp is where you want it.  

nice

Frank,
Very nice, when and what will you transfer them to next?
Thanks,
Kane

I like the space efficiency. I definitely will try this next year. Great results!

Be careful if you have a gas heater, the vent pipe gets really hot. It will melt plastic touching it. Dont ask how i know....

Very nice Frank.  Are you losing any roots coming out of the coir?

Very nice roots, Frank. :)  I might have to try your method next year.

Yes, i agree, great job Frank.

Hey frank roots look great ,I know i am new to figs but did you use the same varieties on fridge and on HWH? For me some root a lot faster than others ,LSU improve celest in about 8 days as for Black maderia took 2 months ,i had 2 maderia cuttings 1 in moss and 1 in coir ,the 1 in coir rooted and nothing on the 1 in moss .. mine were just at room temperature ..i just went and put a couple yellow long necks on the HWH :)

I have successfully done this in the past, but this year, for some reason, everything in my laundry room is molding.  I suspect it has something to do with the humidity down there.  It does work though.

I used Sphagnum for the first time this year.  My hwh is in my cool basement (50F), but I found the cable box in my bedroom keeps a plastic shoe box a nice 76-78F.  Here are the results, I cupped them up today after just 2 weeks in sphagnum.  About half had roots like this one, the rest had lots of lenticels or root initials.  Sorry for the blurry pic. 

Good Job Phil ! : )

My water heater is outdoors.
I have found a very cheap way to replace a heat mat indoors.
I am using my cable modem under the growing tray.

I don't know if all of them modems or lan routers get hot as mine.
a TiVo cable box could also be used maybe?

I'll be doing the same thing as others mentioned here... I'll utilize my Cable Modem which actually produces quite a big deal of heat, I jsut need to make sure not to block the vents so it doesn't burn out...

This will be my first ever attempt on rooting anything. i won 2 cuttings of Col De Dame Blanc on Ebay and after much research have bought a brick of Coir, some Dip and grow which I'll use for my cuttings.

Plan on making slits with a clean razer on the Bottom ends before I dip them, place in a damp plastic shoebox of coir (damp, not wet), place on top of my warm Cable Modem that is isolated in entertainment  Center Slot.... wish me luck guys.

Edit*** I won Noire, not Blanc

Good luck and tells us your resalts.

Hi Frank, I have been doing this for the past 3 winters with great results. The heat from the water heater is really effective!!!!  I love reusing energy!!!!!!!! (See my set up below)



Ps: I love your labeling system. I am totally plagiarizing it from you!

Regards.