U.S. vs FIR pad discussion

MOD EDIT: moved the discussion of US vs FIR heat pads out of CBateman’s progress report and into a separate thread

The pad does a great job of heating the tissues up to about 39C, but cannot get the septum up to 42C without ultrasound. I’m interested to hear how well it works as a backer pad to retain and even out the Temps achieved from US though.

Be careful heating the glans through the vacuum cup under load. It is a recipe for blisters on the glans if there is any air space at all.

That is, I generally like the concept of using a supplemental heat source to take some of the burden off the ultrasound technique. In my experience, it evens out the tissue temps leading to fewer hot and cold spots given that the US head can’t be everywhere at once. But it simply isn’t possible for a conductive or radiant pad at 41-42C to get the septum up to the target temps. Even if the pad could get to higher temps, you would blister the epidermis before reaching 42-43C at the septum. Unless you clamp the base of the shaft which comes with a host of other problems.

Whether the particular pad is useful as a backer depends on the sound attenuation and surface materials. For example, we don’t want material that reflects soundwaves back at US source.

I tested the totalman pad and another with thermocouple in my urethra and managed to get up to 42C. Did you do a test with the pad?

Not specifically with the totalman pad, but with other conductive and radiant heat sources. I’ll take your word for it, but I am very surprised if you were able to reach those temps. The reason being, that is the max temp setting of the pad, which means the hottest it can get at the skin surface is 42-43C. Since thermal impedence isn’t zero, the flow of heat to the center of the shaft is delayed. If it was a fully closes system, then eventually the entire shaft would find equilibrium at the same temp as the source. UT the penis is an open system with coolant flowing through it at 37C. To make things more difficult, the body is reactive, so when something needs to cool faster, the blood flows faster through vasodilation. So I don’t see how it would even be possible for tissues with such high blood flow to reach the same temp as the skin.

Did you test to see if the pad is getting hotter than the advertised 43C? I can see if the pad was getting up to 46-47C that over time it might be possible to bring the septum up to 42C, but at those temps we risk 2nd degree burns with 20 minutes of exposure. I have an FIR pad that reaches 60C, but if it contacts bare skin at anything above 50C it causes a pain reflex. I can tolerate up to 46-47 if it remains in contact as it warms.

My pad definitely gets hotter than that advertised temperature. The advertised temperatures where not there when I bought last year, not sure if it is the same version of the pad. The other pad I have gets hotter again but that is hard to stick when it is at its hottest level

scienceguy - let’s see what happens

That is a link to the results for the both pads. There are limitations with my tests as stated in the post. That’s why I was wondering if you had tested, more data is good! There was another user who tested for a shorter time period than me and the results where similar for the same time frame tested. I forget where that post is now or on who’s log it was.

@Tutt,

Manko tested the Thermedic pad here: manko007 - Gaining volume with Kyrpa

I have ‘assumed’ that some of the claims that the FIR pad manufactures make about energy penetration (are true/not completely false) based on my own n+1 results in addition to others.
Very interested in your opinion on this.

The claims made by FIR manufacturers are wildly misleading. Sure FIR light penetration is an order of magnitude deeper than visible light, but it is still not deep. Literally like a couple mm. In a conductive heat pad, the FIR doesn’t really do much, but it sounds cool and for minimal extra cost helps them sell better.

Manko experienced exactly what I would expect. He was able to reach almost 41C at the glans over a long period of time. But at the base of the shaft, where the coolant entering the system is 37C was not able to exceed 39C. He also took additional measures to improve the deep heating. He tightly wrapped a cock coil around the shaft which restricted blood flow and prevented liquid cooling. Those results are in line with mine as well as general scientific theory.

I would be interested in this case with the totalman if the urethral probe was only a couple inches deep. But that brings up an interesting thought. With my device the distal 2” section is the most difficult to heat. This might be a good way to reach that area.

When you say that Mankos results are in line with yours, did you test temperature in your urethra? What pad did you use?

I didn’t use a wrapping pad because Manko already had. I have a larger FIR heating pad that goes to 60C, a rice sock, and an FIR lamp. The lamp is the least effective at penetrating heat despite having the longest wavelength.

Did you get your temp probe proximate to the junction?

The link I sent previous details how deep I got the probe in. There were limitations with the test, as with most.

Yeah, not the funnest thing to send a probe deep into the urethra. I think with the data points we have it is fairly conclusive that the pads can reach 42C near the glans if given enough time. They are not able to reach targets as we get closer to the base of the shaft. This is unfortunate because it sure would be more convenient.

Thanks for splitting this out. I think it’s a conversation that’s over due.
I have always ranked heating sources as:

1. US (most effective)
2. FIR (middle)
3. IR Heat lamp (least effective)

Both US and IR lamp require you to be naked/exposed during the routine.
FIR allows me to wear lounge pants while at my standing desk. The passive nature of FIR is what sold me on the approach.

Could you put a thermometer on the pad. And tell me what temperature it gives. To understand what temperature the skin has to tolerate. To get the right temperature on the inside.
Is the heat evenly distributed in the pad? If not, why not?

Hey guys. I have a question for everyone who uses pads. How uniform is the heat in your pads? I’ve encountered reports of hot spots. The pillow I bought has a kind of bent wire inside. All the way across the pad. If you touch that wire with a thermometer, the temperature is much higher than between its bends.

Do you have the same or not?

I believe this was done already by someone in the main FIR thread, not sure where the post is but I believe it was in there, they were concerned at how high the temperature got. If I remember correctly.

For hot spots I usually find they are the result of the pad being pressed against your penis too much at a point compared to other points. I get this with my AS pad. I don’t get it with the totalman pad as is meant for the penis so the velcro attaches it evenly.