ProfiLux Temperature Control

[Matthias Gross]

Hi All,

there are 2 news about the PTC:
1. we will be ready for shipping in approx. mid of July. Unfortunately we are still waiting for some parts (especially for the powersupply) which should already be here.
There are lots of heatsinks, peltierelements and mechanical parts in stock but we can’t finish the units because of some parts.

2. The better of the 2 news:
Everybody who makes a fix order for a PTC until 15. July 2008 will get a special credit or discount!
This offer is valid worldwide and varies from region to region. Please ask your retailer for details.

Thank you for your patience and I hope you like this special offer.

 

[AQD_ottawa]

North American region credits as follows

The 10% off until end of June still applies to all orders that a 10%deposit has been paid to the retailer. This ends on the 1st july.

As of today until the end of july (including any orders already placed with deposits) a credit with your retailer will be provided as follows

PTC1 = $15
PTC2 = $25
PTC3 = $50
PTC4 = $75
PTC6 = $100

Questions -

How do i get this credit? There will be a credit slip in each unit present this to your retailer in future puchases.

I have purchased more than one unit can I add the credits up? NO, one per person not per unit.

I want a PTC but there is no data sheet still?

GHL want to provide a data sheet that is calculated on a "working" environment. The figures that will be provided when all calculations are finished will be reliable (with tolerance).

We could launch figures now based on mathematical assumptions but this is not how GHL work, as with all things GHL accuracy to the client is the most important factor.

The LIVE tests are nearly finished and you will have this shortly.

 

[SeanT]

So if you purchase a PTC6, the cost is $2,000 - 10% = $1,800.

AND you get a coupon for an additional $100 off GHL products?

Sounds sweet to me,
Sean

 

[Jar*Head]

Sound tempting....

 

[AQD_ottawa]

yes but remember only one discount per person not per PTC!

 

[ReefRockerLive]

Gotta get my order in with Todd!

 

[Jar*Head]

Reef, Todd at Cherry Corals is #1 when it come to customer service. If profilux ever have SALEMAN OF THE YEAR award, i will nominate Todd.

 

[AQD_ottawa]

whats he been up to now

 

[Jar*Head]

<a href=showthread.php?s=&postid=12718816#post12718816 target=_blank>Originally posted</a> by AQD_ottawa
whats he been up to now

Originally i was going to buy just the basic controller but Todd and SeanT talk me into all kind of stuff now i ended up with almost $2K purchase of Profilux. Can you believe that?

 

[AQD_ottawa]

Its only money

 

[SeanT]

Tell my wife that.

 

[badazztealcobra]

<a href=showthread.php?s=&postid=12709162#post12709162 target=_blank>Originally posted</a> by AQD_ottawa
GHL want to provide a data sheet that is calculated on a "working" environment. The figures that will be provided when all calculations are finished will be reliable (with tolerance).

We could launch figures now based on mathematical assumptions but this is not how GHL work, as with all things GHL accuracy to the client is the most important factor.

The LIVE tests are nearly finished and you will have this shortly.

Just curious if you or Matthias knew if these numbers would be available before these pricing specials all go away ???

Thanks......

 

[AQD_ottawa]

Yes they will!

 

[erikages]

I've just read that Peltier cooling is less efficient (roughly 30%) than compressor-based chilling. I'm not an engineer, but can someone explain the reasons for this? Intuitively, I'd have thought Peltier would be more economical (and efficient) than a standard refrigerator-style chiller.

Erik

 

[AQD_ottawa]

This was explained in depth in the originanl thread.

On paper yes they look less efficient BUT and this is the key, Peltier work on a ramp up ramp down system, for example -

A compressor chiller (which i will add does not heat either) works on the basis that it comes on when the temperature goes about 1 degree above the set value (my experience is it is more like 2 degrees!) and then comes on full whack to drive the temp back down then shuts off, this can take anything up to an hour edepending on size of chiller, environment and water volume.

Now a peltier is always monitoring the temperature and keeping the temperature at a set enviromental level, no peaks or toughs,. This is way more efficient in usage as it does not draw huge wattages all in one go but at a constant controlled trickle, but of course it will turn itself of when the desired temp is reached over a period of time, so the faster the temperature rises the harder the Peltier will work or visa versa, and of course the reverse of all this is that it is doing the same for your heating as well.

So putting it together in one sentance.

peltier is more efficient based on its variable cooling method.

 

[SeanT]

Michael/Matthias,

I have a question.
Brian, the propretor of Fins Reef which cells the OCEAN GEOtronic Thermoelectric Reversible Conditioners (also a Peltier style device) don't wors as well in larger volume systems?

Would either of you comment on this...I wouldn't want to buy 3 of these units (possibly a 4th) and not have it be effective.

Thanks,
Sean

 

[AQD_ottawa]

You can not judge the PTC against other units on the market, GHL have gone to great lengths to make sure the unit is integrally unique.

There would be no point launching a new unit that is the same as a competitors.

With the Launch of unique and new products that are varients of other units it is not uncommon to get all sorts of stories emerge

You have no fears

 

[Matthias Gross]

I am still having some problems understanding English -
what means "don't wors as well in larger volume systems"?

Compressor or peltier chiller?
-> if you always have to cool the tank down and you never must heat and your temperature is always at a critical level and the compressor noise is not important: I recommend a compressor

-> if you cool and heat your tank and you don't want much noise and you want to have high tech without any maintenance efford and you want to achieve a constant temperature: use our PTC

 

[Matthias Gross]

Another thing:
Please don't compare in this forum our products with products from other brands. This causes only trouble with other manufacturers and/or retailers.
Everybody who is able to read can compare the power dissipation of our PTC and the competitive models.
Since the efficiency of peltier elements (given by design) is quite the same everyone can draw his own conclusion after comparing the power...

 

[SeanT]

Matthias,

I need to cool my tank 10 months of the year and only need to heat it for 2 months.

With this ratio are you recommending I get a compressor type chiller?

Thanks,
Sean