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I enjoyed this video, it was well produced and easy to follow. I will share it with my crew and other company officers and create some discussions. Thank you for making it.

This is gold

Great video

You should take a look ay Jan Van Her Heyden work. Probably the first firefighter manual.

Just got around to watching this at last. What a great video. Thanks to both of you guys for making this. I can’t believe there are so few comments. Three thumbs up, and many thanks. Keep up the great work!

Very nice. Thank you sir.

welcome back

Congratulations Lars for giving us the opportunity to hear a broadcast with James Quintiere, this broadcast is two hours full of useful information.

Where can i find the two Videos from the beginning? I couldn't find them at UL.

Sir please guide us on industrial fire in details like hydrocarbon fire, chemical fire

Thank you for all your work and sharing what you discover!!

Awesome presentación great way to condense a lot of knowledge y very simple statements. Thank you very much

All UL talks about is water application. They refuse to look at the use of additives like surfactants that make water more effective at extinguishing fires. If Lars is pushing UL solutions then he's talking the same game that everyone else has been talking since the caveman threw the first bucket of water at a fire. While the rest of the industrilized world uses chemistry and physics to develop new ways of building the world around us you would think that those that consider themselves to be at the cutting edge would fold some of the chemistry and physics into their approach to firefighting beyond what we did as cavemen to put them out. Chief Hughes Battalion 1 (retired) Chicago FD

Water cools heat not smoke. Heat represents the physics of a fire while smoke and invisible fire gasses represent the chemistry of a fire. Smoke is particulate matter produced in a fire made thousands of chemical compounds many of which are petroleum based making smoke hydrophobic (water repellant). Per ULFSRI research only 5% to 10% of water applied to a fire contributes to extinguishment. When we add a chemical surfactant found in wetting agents water becomes 3 to 5 times more effective at extinguishing fire as compared to plain untreated water. Fight the heat with water, yes, but to get at the chemistry of the fire (smoke and fire gasses) you need to add chemistry to water. Chief Hughes Battalion 1 (retired) Chicago FD

I don't get a particular piece: at around 48:30 there is the statement that if you are able to suppress the fire we would be able to start ventilating in order start searching for victims. Since we only suppressed (and not extinguish!) the fire, aren't we simply providing the fire with more oxygen? Or do we keep suppressing the fire from outside until we are able to reach and extinguish it (after rescue?).

One of the best presentations you have given. One question, how noticeable is the negative zone at 09:03? great job!!!

Terrific presentation Lars !

Great discussion !👏

Right on Lars! You nail it Brother!

Thank you for this informatie

Hej, är det möjligt att få länkarna till filmerna?

Super informative talk, thanks for sharing your conversation Lars. Every time I thought of a question during the conversation, it didn't take you 5 minutes to ask it. At times I thought you could read my mind :D

Two fantastic and inspirational colleagues! 👌

You guys really covered some ground on this one! Nice work! It was a really interesting listen. Keep up the great work 👍🏽

You made so many arguments and raised so many questions I some what had internally and felt silly to ask.

Very very good arguments and demonstrations. I am very thankful for your time and effort. I am, however, now😊 questioning everything I know and have done lol 😆 😅

Thank you for a good vid😊👨‍🚒🚒 Are you an instruktor at Sandö or Revinge, or are you an instruktor at a firedepartment?

Thank you for good information you bring to us with your videos

Lysande Lars👍🏼

Tack tack Thank you very much for this very interesting presentation.

tack!

Love it!!! Great presentation!!

What great video! Super comprehensive demonstration. Will show this in our maritime fire fighting training course. Thanks for the great work ❤

As a Swedish firefighter I really learned a lot from these three well spent hours of talking. Nozzle knowledge and training and interior fire tactics is quite a huge piece of the puzzle that's missing in the Swedish fire service, and we have a lot to learn from this kind of videos. Thank you!

In the US has big flow on the hose. This put out the fire faster. Instead control the environment is a good point but it is a syntoms not the daeses they manege the environment with the stream but the realife is the K point in the Europe don't has this number and the environment have to accurately manage.

감사합니다😊0

Transitional attack for a Swedish 🇸🇪 FireNerd? 😆 That is American 🇺🇸. What happened to "Smoke Cooling?" You're now SvenskAmerikaner FireNerd. Best regards from the Philippines 🇵🇭. Semper Paratus!

As always great discussion. Have been following ULFSRI since the Governor's Island Research. This man is a gift to the fire service. Concepts and Tactics should be taught as a whole. Big fan of Steve and Lars. Different countries with different perspective and approach in a civil discourse is a gem. Continue the great work. Semper Paratus! Best regards from the Philippines 🇵🇭

Spännande grejer! Vi skulle behöva få igång övningseldandet av hus igen för att bli duktiga på det här. Det är i dagsläget väldigt svårt att hitta verklighetstrogna sätt att öva och testa det. Nåt att klura på!

Water's volume expants while been heated. I ve learned that 1 lt water becomes 1700 lts of steam in100 c degrees and increases more in higher temperatures. So pressure in close room rises either with straight or fog. My question is: all the hot gases that come back to us is because of the negative pressure that is produced from using fog stream, from the overpressure that we produce adding water, or both? I like your job. Keep up. 👍👍👍

Tackar! Det var en tankeväckande lektion! Hälsningar från andra sidan Östersjön.

Hey Lars, I cannot find the Iowa video. Could you please send it to me?. I would love to see it. Thank you

"The fire service is one of the few opportunities you have to go into a field with very little education and training and have a respected profession" . This statement is so true and it resonates with me. I'm not from this country, english is not my first language and only went to high school. I am as far as you can be from being an academic. BUT, not being an academic does not prevent me from nerding out and learning as much as I can. This job is the best thing that could've happen to me. Great conversation and very educational as usual.

16:06

Hej Lars Tack för väldigt intressanta filmer och resonemang. En fundering efter denna del 3. Du lägger mycket vikt vid koordineringen av håltagningen. Samtidigt så visade du tidigare i filmen att man kan ha bra effekt med dimspikar eller liknande på stora volymer i en läckande uthuskonstruktion. Min fråga är, om det är svårt att skrapa fram resurser för denna koordinerade håltagning, flera dyra värmekameror osv. Kan man inte, åtminstone i teorin ha framgång med att fortsätta köra dimspikarna och jobba med ett hål i taget? Eller blir temperaturen för låg i utrymmet för att hålla den magiska vattenhalten?

One thing to add is that in a lot of situations the straight stream can be used in bursts just like fog. A 2 second burst will give a good impact on the ceiling or walls and you wont have tons of water everywhere. Burst, shut down advance, repeat...

2 things firefighters hate, the way things are and change

Fascinating research Ed!

It’s been a long time seeing you two together 🥳

Woooo