++ ATOT official NEF thread part IV ++

[Barfo]

ffb

 

[Red Squirrel]

Off till monday then I work from home for a few days.

 

[Red Squirrel]

I bought a radiant heater so I can heat my cement slab to warm it up so I can apply epoxy. It does not have much if any up/down adjustment, so I had to improvise...

 

[Red Squirrel]

This things are voodoo magic to me. I have no idea how they work. They literally project the heat, the same way a light bulb projects light. There is no fan, and the unit itself does not get very hot, only a little warm, but surfaces that it points to get hot.

I wonder if they make blow dryer versions of these, you could melt snow off solar panels from a distance if the beam stays focused enough.

 

[Red Squirrel]

Bed time nef.

 

[Red Squirrel]

I'm off tomorrow but already tired. Will be nice to sleep in tomorrow.

 

[shortylickens]

 

[sdifox]

Buying too many things from Amazon nef

 

[sdifox]

This things are voodoo magic to me. I have no idea how they work. They literally project the heat, the same way a light bulb projects light. There is no fan, and the unit itself does not get very hot, only a little warm, but surfaces that it points to get hot.

I wonder if they make blow dryer versions of these, you could melt snow off solar panels from a distance if the beam stays focused enough.

Err whut? Older hair dryers work exactly the same way.

 

[sdifox]

Kids want Sunset Grill takeout though I could have cooked the same things...

 

[bigboxes]

Kids want Sunset Grill takeout though I could have cooked the same things...

You're the adult. You make the decisions.

 

[Red Squirrel]

Err whut? Older hair dryers work exactly the same way.

Huh? Never heard of that. Blow dryers use resistive elements and a fan and don't think that design has really changed. It's the simplest form of heat.

 

[Barfo]

Buying too many things from Amazon nef

 

[shortylickens]

Wheel of Fortune is coming back.

 

[Red Squirrel]

I haven't bought much in general in a while now. My 4k monitors and monitor arms and other accessories that went around my new setup was my last major purchase. I probably should have put that money on the credit line but since it was tax return money I basically broke even there and I had been wanting to upgrade for a while anyway.

I want to change the tilt on my shed solar panels, and also run power to the house, but I don't know if I want to spend the money on that this year. Need to buy lot of hardware to make it happen and it adds up.

 

[sdifox]

You're the adult. You make the decisions.

Not when the wife say get it.

 

[sdifox]

Huh? Never heard of that. Blow dryers use resistive elements and a fan and don't think that design has really changed. It's the simplest form of heat.

So is your radiant heat doohickey. Hairdryer now use ceramic heating element

 

[Red Squirrel]

So is your radiant heat doohickey. Hairdryer now use ceramic heating element

Think it uses some sort of quartz crystal, there is a heating element but that's not the primary source of heat otherwise the heat would just be localized to the heater. I think that's just to get the quartz hot. It's basically an infrared laser but not as directional. At least that's my understanding of it.

 

[Barfo]

barf

 

[Barfo]

Not when the wife say get it.

pics of the wife?

 

[bigboxes]

This things are voodoo magic to me. I have no idea how they work. They literally project the heat, the same way a light bulb projects light. There is no fan, and the unit itself does not get very hot, only a little warm, but surfaces that it points to get hot.

I wonder if they make blow dryer versions of these, you could melt snow off solar panels from a distance if the beam stays focused enough.

How Do Radiant Heaters Work?


As the name implies, radiant heaters work by generating infrared radiation. All objects radiate energy in some form, at a rate proportional to their temperature. The infrared energy from radiant heaters travels out in the invisible, electromagnetic waves that get absorbed by the objects in their path. If you’ve ever sat in front of a campfire, you’ve experienced radiant heat.


Radiant heat differs from conduction or convention in that it’s directional and unaffected by the medium it travels through and they don’t lose heat as they travel through the air. The waves move out in a straight line until they’re absorbed by your clothes, skin, and furniture, which means they warm you up very quickly.

Taken from here: https://www.newair.com/blogs/learn/convection-heating-vs-radiant-heating

 

[bigboxes]

Not when the wife say get it.

You're the man. You make the decisons.

 

[bigboxes]

You're the man. You make the decisons.

But seriously, man up.

 

[Red Squirrel]

Taken from here: https://www.newair.com/blogs/learn/convection-heating-vs-radiant-heating

Oh I knew about that part but it does not really explain the specifics.

Like it's neat how it can literally project the heat, like, to actually generate IR at those power levels without anything super advanced like a laser diode.

But yeah think it has to do with the quartz, when you heat it up, it generates IR, and since it's light, it can then bounce off the shield. You just don't see it because it's out of the visible spectrum, but this is basically a spot light. IR is special in that it actually heats things. At least that's my guess, I could look it up further, but I'm just going to go with voodoo magic.

 

[Red Squirrel]

Epoxy done.






As a side note my copy/paste functionality on this machine is so freaking flaky. It only works when it wants.