does anbody remember this "Heater" (found the patent)

[MrWizard]

sorry no picture, i can't find one online ( see page 2 found the patent application and drawings )
i have searched and searched, vintage old portable
you name it, i tried it

it is/was 120v portable, not quartz or halogen or oil or ceramic
it was sealed partial vacuum low pressure steam

DE-iozined water sealed under partial vacuum , when the heat was turned on the water evaporated aka turned to steam at a much lower temperature, heating the surface of the heater much like oil filled
only doing it faster, it would make "ticking" noises while warming up
it was taller than it was wide (did NOT look like a radiator)
looking at the front, it was "V" shaped to provide more surface area
there was temp control knob and on-off switch
the surface temp was really warm but NOT hot, you could touch it with out getting burned, you could hold tissue or fabric against it, it would not catch fire, not hot enough to make anything smolder
there was a fan that came on-off with the temp of the heater

this was the late 80's to 92

i have not seen one in many years, can not find one on ebay
can not find any images or info using google

my memory says the brand was "Heat Tec" but a search brings all kinds of stuff .. not related to what i'm looking for

maybe one of you have or had one ?
i bought it at "FedCo" which is now defunct

[Old-Biscuit]

ktmrfs wrote:

Dutch_12078 wrote:
DI water is very corrosive, often referred to as the the "universal solvent". I'm surprised that it would be suitable for a space heater. Even the commercial heaters for heating DI water have to be specially constructed for the purpose. Are you sure it used DI water?

doing some research, NASA testing showed DI water had no corrosion with stainless, titanium, aluminum, silver or tungsten and some with copper

another research paper (not nasa) says DI water is extremely corrosive and will desolve most metals.

hummm........

DI water could be more corrosive than some tap water, but then some tap water is pretty corrosive as well.

but if NASA is correct, using aluminum or stainless shouldn't be a problem.

DI water is exactly what you want to heat and turn to steam because it has no minerals in it that can plate out on inside of tubing.
ALL boilers use DI water
Humidifiers use DI water
Clothing Irons use DI water

30 yrs of operating boilers for a living....we made and used DI water

YES DI water is a 'solvent'.....due to lacking any minerals it will leach them from other sources BUT heating under pressure turning it into stream DI is the water you want to use.

[MrWizard]

thanks..tried a certec search
found nothing matching up to my OLD portable electric heater

[ktmrfs]

Dutch_12078 wrote:
DI water is very corrosive, often referred to as the the "universal solvent". I'm surprised that it would be suitable for a space heater. Even the commercial heaters for heating DI water have to be specially constructed for the purpose. Are you sure it used DI water?

doing some research, NASA testing showed DI water had no corrosion with stainless, titanium, aluminum, silver or tungsten and some with copper

another research paper (not nasa) says DI water is extremely corrosive and will desolve most metals.

hummm........

DI water could be more corrosive than some tap water, but then some tap water is pretty corrosive as well.

but if NASA is correct, using aluminum or stainless shouldn't be a problem.

[Big_Katuna]

Certech?

[MrWizard]

#1 maybe it wasn't de-i water, but it was water
after all i'm running on memory here

#2 i probably did mention it before

[rv2go]

MrWizard wrote:
yeah so do I
thats why i have been looking
it was the nicest electric heater i have ever owned OR used

You still looking for this heater. Seems like you were looking for it years ago. Or made reference to it in another heater post.

[Dutch_12078]

DI water is very corrosive, often referred to as the the "universal solvent". I'm surprised that it would be suitable for a space heater. Even the commercial heaters for heating DI water have to be specially constructed for the purpose. Are you sure it used DI water?

[MrWizard]

yeah so do I
thats why i have been looking
it was the nicest electric heater i have ever owned OR used

[pianotuna]

I want one! (or maybe more!)