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 heat matts

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San Rainbow
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PostSubject: heat matts   Wed May 07, 2008 5:18 pm

any one know were to get a good deal on thermostat heat mats,
how much did you pay, how much should you pay?

cheers
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slim6y
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PostSubject: Re: heat matts   Wed May 07, 2008 5:22 pm

Yes, wehaveitall.com.au

The exact link...

http://wehaveitall.com.au/store/index.php?act=viewCat&catId=81

I don't get anything out of it - but it would be nice if you told them that slim6y sent ya...

I buy the heat mats for my snakes.

They're very reasonable prices.

They also have gro globes etc... have a look around Smile
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San Rainbow
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PostSubject: Re: heat matts   Wed May 07, 2008 6:45 pm

cheers
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trigonus
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PostSubject: Re: heat matts   Wed May 07, 2008 7:08 pm

I picked up mine from ebay (a pet supplies store, nursery grade heat mats are VERY expensive, they are better though), mine was $60, though it has no thermostat, I had to buy a thermostat control seperately, which cost me $40, my setup is far from ideal and it entailed certain difficulties when rigging it up.

So it was $100, plus the annoyance, I suggest looking at the link slim6y put up, I will definitely consider buying a thermostatically controlled heat mat from them if I decide to upgrade my system in the future, which I undoubtley will.

Thanks for the link.

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trigonus
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PostSubject: Re: heat matts   Wed May 07, 2008 7:13 pm

Mine is the one on the top, the MICROCLIMATE one, can't remember what size, but it is 30 watts. I recommend them, though you will need a thermostat.

Well atleast I think you will, mine never had one.

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trigonus
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PostSubject: Re: heat matts   Wed May 07, 2008 7:15 pm

Oh it's the 30w - 572 x 305mm model, same price from them. $60 ish.

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Haga



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PostSubject: Re: heat matts   Wed May 07, 2008 7:34 pm

what is it for san rainbow? if its for germinating seeds i recommend a lamp inside a big foam box like a broccili box.

will cost you 20 bucks for all of it.

i used to have a cathode ray computer screen and would pop tuppaware containers on the back of it to collect the heat.
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slim6y
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PostSubject: Re: heat matts   Wed May 07, 2008 7:59 pm

I do agree with Haga though... for the price it's ideal... but... I think the heat mat provide a more constant and larger area of heating and is easier to control.

A thermostat is required. You can pick them up from the same site.

I trust my thermostats with my snakes' lives! So I would certainly trust them with cacti!

There are cheaper options such as heat cord (around $20 for a few metres). But heat cord has a low surface area for heating.

An aquarium tank with lamps and a fluro gro tube may also be a good idea.

You can often buy second hand aquariums for less than $20!

Good luck tell me how you get on.
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San Rainbow
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PostSubject: Re: heat matts   Wed May 07, 2008 8:07 pm

Haga wrote:
what is it for san rainbow? if its for germinating seeds i recommend a lamp inside a big foam box like a broccili box.

will cost you 20 bucks for all of it.

i used to have a cathode ray computer screen and would pop tuppaware containers on the back of it to collect the heat.


love your work Laughing

soul purpose is lohp's & trich's, I have 2 X Heat 'n' Grow TPS020 ( heatngrow.com.au ) non thermostat mats which I picked up from a hydro shop for $50 a piece but I will have to return them as they seem not to be working so well, they have a two year warranty so I might try and upgrade to one with a built in thermostat, and as trig said he had certain difficulties when rigging them up so I will try to avoid any frustration if possible.

but keen to hear any ones recommendations on the purchase and cheers all for help!

afro
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San Rainbow
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PostSubject: Re: heat matts   Wed May 07, 2008 8:15 pm

slim6y wrote:
I do agree with Haga though... for the price it's ideal... but... I think the heat mat provide a more constant and larger area of heating and is easier to control.

A thermostat is required. You can pick them up from the same site.

I trust my thermostats with my snakes' lives! So I would certainly trust them with cacti!

There are cheaper options such as heat cord (around $20 for a few metres). But heat cord has a low surface area for heating.

An aquarium tank with lamps and a fluro gro tube may also be a good idea.

You can often buy second hand aquariums for less than $20!

Good luck tell me how you get on.


yea they look sweet! couldn't find thermostat which one do you recommend?
so this set up wold go like... fish tank, mat in bottom, sand on top of mat (20mm?) maybe light (any recommendation)
if I were to build the tank myself what would the optimum height be to allow good humidity?
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San Rainbow
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PostSubject: Re: heat matts   Wed May 07, 2008 8:23 pm

http://heatngrow.com.au/products.htm

whats your opinion on these for cacti?
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trigonus
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PostSubject: Re: heat matts   Wed May 07, 2008 9:13 pm

I disagree, you should use a heat mat for germinating seeds, lights just don't cut it in my experience.

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calycium
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PostSubject: Re: heat matts   Wed May 07, 2008 9:13 pm

hey Rainbow - all that stuff on the site is good. It all depends on what you want to pay.
For me, I just put my seed in an aquarium (empty of water) place the seeds in trays in a plastic bag and have a 25W standard light globe for heat. I line the aquarium with alfoil, cover the top and presto - seedlings.
You can do the same for $100 - 150 as I did for about $4 from scrap around the home.

Good luck - remember it is all really down to heat and water to provide humidity.
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trigonus
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PostSubject: Re: heat matts   Wed May 07, 2008 9:20 pm

hmm maybe i read that wrong....

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calycium
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PostSubject: Re: heat matts   Wed May 07, 2008 9:25 pm

Lights are fine if they are not fluro's and used to generate your heat as opposed to bottom heat (heat mat)
A lot of people use grow light type fluro to promote growth once things are germinated.

Trig, you are right - we are just at crossed meaning with our term light. I simply mean a light globe to generate heat.
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trigonus
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PostSubject: Re: heat matts   Wed May 07, 2008 9:29 pm

IME bottom heat is much better as it provides heat to the root zone.

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calycium
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PostSubject: Re: heat matts   Wed May 07, 2008 9:33 pm

I agree, but from a cost perspective a light globe is cheaper than a heat pad and thermostat


Last edited by calycium on Sat Aug 09, 2008 3:59 pm; edited 1 time in total
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slim6y
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PostSubject: Re: heat matts   Wed May 07, 2008 9:35 pm

In that case then use a ceramic globe - they don't blow, they can be thermostatically controlled and they have a much longer life.

Soil temperature is much more important to seed germination than air temperature (in my past experiences - though admittidley not with cacti). The soil temperature is more likely to be consistently higher when heated from underneath than when heated from above.

The thermostats are located on this page:

http://wehaveitall.com.au/store/index.php?act=viewCat&catId=29

You don't need to pay a fortune Smile There's some good cheap ones there. Just remember though, you're playing with heat, so be careful.

Most of the accessories you would want are similar to that of reptiles (suprisingly enough).

http://wehaveitall.com.au/store/index.php?act=viewCat&catId=28

The aquarium idea is good.. but do not fill your aquarium with sand, use moveable seed trays and heat it from underneath and/or above.

Humidity is easier to control that way as well.

I really didn't realise how lucky I was to live in the tropics, high humidity, high winter temperatures... I live in the worlds largest terrarium Smile

So, option C - Move to Cairns!
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trigonus
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PostSubject: Re: heat matts   Wed May 07, 2008 9:37 pm

I think for anyone who seriously wants to raise rare cacti seeds, a heat mat is essential. That said, not everyone wants to propagate rare cacti.

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calycium
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PostSubject: Re: heat matts   Wed May 07, 2008 9:39 pm

Great idea.
Now you have me thinking about putting my globe under the plant trays in the aquarium for heated soil using light Smile
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PostSubject: Re: heat matts   Wed May 07, 2008 11:17 pm

I agree on the bottom heat. It is pertty much essential, but it depends how cold it is where you live. The low over night temp does not seem to effect germ but when the temp during the day does not get high enough the germ rate suffers. Also when buying heat mats be careful they can handle high humidity environments, at one point or another when cultivating cacti water is going to be spilt and I don't wanna see anyone get hurt Smile

I personally don't need a heat mat as I just germ my seeds on top of my metal grow stand. Due to the heat of the lights and the room temp the top gets quite hot. Old hot water heaters work great too.
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slim6y
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PostSubject: Re: heat matts   Thu May 08, 2008 7:33 am

I assume the temperature lag in the soil is what keeps the soil much warmer over night - which is why the over night temperatures will have little effect providing we can get soil temps above 18'C during the day for at least 10 hours (though I can't confirm this is adequate for cacti, but it does suit a range of seeds).

Also - soil is more convective than conductive and a little radiation also. But most of the water/air in the soil is heated through convection - so underneath heating is far more efficient (think of a jug or a hot water heater and where the element is).

But because the seed is so close to the surface, surface temperatures will also play a part. So if it's -4'C above ground and a toastey 20'C below ground, I think your germinated plants will be a bit confused as well.

Daytime light hours also play a role in germination and survival - unfortunately I know little about this with cacti - and most plants seem to overcome this. But not all plants can.
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San Rainbow
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PostSubject: Re: heat matts   Thu May 08, 2008 5:39 pm

I took back my old mats today and the guy at the shop has
exchanged my old matt's for a



TPS 040:


Two tray heated propagation system with thermostat


The TPS 040 heated propagation tray holds two seedling
and/or drip trays. This 40-watt tray
comes with an in-built 0-40C
thermostat for accurate temperature control all year round.


Dimensions: 670mm x 400mm


and picked up a TPS TOP

The TPS TOP Clear Top is a plastic cover, which sits on top
of a single size seedling and/or drip tray, creating a mini-greenhouse effect.
It has a 3-way vent system, providing further temperature and moisture control.
The TPS TOP can be used with or without the heated propagation tray.
Dimensions: 365mm x 300mm x 160mm

Pick them up on Tuesdays...

http://heatngrow.com.au/products.htm

were do you get your preferred propagating sand from?


cheers

afro


Last edited by San Rainbow on Sun May 11, 2008 5:00 pm; edited 2 times in total
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PostSubject: Re: heat matts   Thu May 08, 2008 7:22 pm

Not yet giving way to technology, I raised the floor inside my aquarium and placed the light / heat globe under the plants - they are now getting sunlight through the window and bottom heating Smile
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PostSubject: Re: heat matts   Thu May 08, 2008 7:31 pm

Heat rises calycium... don't let em get too hot Smile
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