Bury the radiator under a stone wall? Mass heater and nail protection.

Great idea Neil. @Thomas Marsh I like yours too

that is interesting - thanks mate - it's a use i never thought about - i must think of a test and demo for this

Do you have any details to describe how you did it. I'm interested in trying it

cheers mate

cheers - thanks for your post

lukelordoflight it sometimes takes me awhile to get to it mate - but i get there lol

lol - cheers mate

cheers mate

cool advice mate - cheers

absolutely mate - you are quite right to point that out - always worth checking your local code

+Craig Lewis go for it mate - unless you want to get into a whole world of regulations though - don't wire it straight into the house mains - use an isolated fused socket - the particular requirements will change from country to country - but they are very strict here in the UK - you probably need to check them out for the country you are in

+Robert Murray-Smith I'm in Canada and I feel that your method is perfect, easy (I'm Ex Navy Electronic/Electrical Tech) and safe. :) Tks.

+Craig Lewis cool - let me know how it goes mate - there are lots of uses for this paint

Hi Robert :) Wanted to see if you have an update to your radiator. How is it's performance? Cheers :)

hiya mate- i don't i m afraid - but i did hear of a couple of guys who took this and have set up a company - i believe they are doing quite well

a stone heater would be cool

Have a run through the paint on heaters playlist too you might find it interesting

Good Idea!

everything wears out mate - it's a question of care and repair - but good points

lol

vicebi cheers mate

@@masterdebater8757 thanks for the incredibly detailed reply! I understand where you're coming from & the info was very helpful 👍 Best wishes to you & thanks again!

i think it been a bit more than a year buddy lol

@@infertilepiggy5667 This isn't Robert. My question was for Robert.

Peltier devices could do that, in theory, if you can expell the heat, but I think it would be expensive. For cooling, I've been considering ways to cool a smaller space, or even just cool my body, rather than the whole house. There are now portable, battery operated air conditioners. (AC with compressor, not swamp coolers) They are supposed to blow cold air directly on you, not cool the room. But, they will cool about 20 square feet. So, I am thinking of making a blanket fort on my bed and using it to cool that little space as I sleep during summer months. Solar panels would charge a deep cycle battery to run the itty bitty AC. My thinking is that if electricity from the power company is too expensive or even unavailable, at least I could get a good night's sleep.

@@williambianchi2006 Cooling yourself sounds reasonable but it does not work too well in real life. Speaking from experience using a cold water cooled military vest. It uses a backpack full of ice and a pump cicrulates cold water through thin plastic tubing that is woven in the vest. The result is that yes, you can last longer under the scorching sun but the legs, groin, and especially the head overheat. At night the head pulsates. There are water cooled hoods, shorts and pants. But the whole thing needs to stick tight to your skin and after some time it starts to bother you. Also when the cold water gets warm you need to take off the vest immediately because now you are wearing a plastic vest and you can't perspire well. Changing the ice is easy and fast but not too efficient - a 250 lb man working heavy physical labor in 100F uses about 1 lb of ice every 30 min. Bottom line - cooling yourself is not a great idea. What needs to happen is to cool the air around you. Which means one thing - some kind of air conditioner that is powerful enough to cool the equivalent of the inside of a car to about 70F. Making a tent and using that battery AC is a good idea but one pretty serious problem is the cold/cool air distribution. If it enters the tent in one place it will make it uncomfortably cold right there. Another problem is the air that you breath - the fort will quickly saturate with CO2 and you will not suffocage but not sleep well at all.

Keeping hydrated with electrolytes and a personal fan...good linen or cotton clothes and keep your hands cool by soaking in cold water time to time Worth a shot but maybe a dehumidifier is your best bet ...i remember how humid and miserable it was in the summer night's when I visited Texas. I tried riding a bike to create a breeze but no luck to cool off.

yeah sure - no worries - burning at low heat is the standard test for carbon purity - you weigh the left overs after you have burnt the carbon away

Rajendra Jagad good man lol

michael endall bless your heart mate

not quite mate - I also did a video on ink basics have a look at that if you haven't already - here you would need a fire proof ink - sodium silicate as a binder would work well

Robert Murray-Smith appreciate the pointers 👍

good idea mate and you wouldn't need mica kapton is good to 400 degrees C - so plastic will do it

jccadwallander and really economical too - well - i think so - got a few measurements to do first lol

+Thomas Syxe i made a video on how to make the ink - so have a go at making it and answer that question for yourself mate - you learn so much more by doing

cool mate - good luck with it - cheers

Good point

lukelordoflight to be honest mate - i would paint the floor - heat rises lol

Robert Murray-Smith but since this is no regular "convection" heater, that only heats and circulates the air (yes hot air rises, cold staying on the ground...hot head - cold feat ) , it is emitting infrared waves like the regular infrared heaters (they also use a sort of carbon fiber as heat source, since carbon fiber does give off heat in form of infrared c-waves when connected to electric power) and as infrared is not using air for heat transport (it is direct heating = subcutaneous heating) you know it from cold winter day , when you are somewhere in the shadow -ice cold air - step into the sunlight and you feel direct heat from the sun= infrared c-waves... but the air is still cold..not transporting the heat... understand what I mean? And since the best way to heat a room evenly, is to send the infrared waves unblocked to every surface in the room...from the ceiling...we call this method.."Spatial / room shell tempering"... I thought this might be a good idea to make it on the ceiling... you could even run the temp.sensor directly on the surface of the ceiling and would not need to run it under / in the wall... and simply cover the cable with paint...and the other thought was that it is more save on the ceiling since the probability that someone touches the ceiling incidentally is zero! Let me know what you think :) Thanks! Best and kind regards!

lukelordoflight sounds like a plan - let me know how it works out for you i'd be fascinated. It's just not possible for me to do everything so I would encourage you to try

Robert Murray-Smith ..sure... Will contact you about some samples soon.. Also I will make a test with my infrared can so we can see how it works... Will get back to you about this next week ! Thanks for now and your hard work!!!!!

lukelordoflight no worries

@RobertMurraySmith. Please don’t be offended by my very small ‘Thank You’ contribution. It reflects my circumstances in these difficult times and is as much as I can afford currently. You have my sincere gratitude for the work you put into your videos and for all you share! Please keep up the great work ;)

Dennis yoj I didn't load it to breaking - but i have been running it all winter - like you i worry about people messing with wiring but i also like people to experiment - it's a difficult line to walk lol

the paint is water based so anything water based will raise the resistance try an oil based varnish first to seal it then anything you want

it keeps the place ambient rather than toasty lol

on it's way mate

Hey Craig - fellow Canuck here. This is very interesting. Love to put some radiant heat in my workshop (garage.) Did you go through with it ? Can you still get the ink ? Or perhaps a roll of underfloor heating cable. Love to hear about your results. I was considering a piece of tempered glass as a radiator.

@@SquareRootOfMinus1 yes i have made several heat pads for starting seedlings. I did the test wall and used it for a winter.

Sorry mate but that would be the worst thing you could do. Isolation is the key to safety here - it is called a class II device where you have no metal at all and prevent exposure but enclosure isolation - this is the way most appliances built from plastic work - including your toaster. You only need an earth where there are metal components you can touch that might become connected to the live by fault. - so, if you are worried just put a layer of thick plastic over it so inquisitive fingers can't get to the element.

Robert Murray-Smith I know what you mean, I'm even an electrical engineer. However, if your insulation is injured or moisture from entering your security precaution lapses.

Michael Zieger Ok Mate - the problem with your argument is that it is perfectly true - but it is perfectly true in the same way that if the earth spirals into the sun we will all die is perfectly true - but then it is not really a question of what is true - it is actually a question of what is adequate. You are surrounded by class II devices- lights, heaters, toasters, etc etc - this bit is for others following - i Know you Know - Class II equipment is protected by a double layer of insulation class 1 has a single layer but a chassie - the foil Michael mentions - connected to earth - all appliances in the UK require PAT testing for safety. There is a class 0 which has no earth and a single layer of insulation but this type of appliance is not allowed in the uk because of a 1989 law covering this type of equipment - it is allowed in lots of 110v countries though and local conditions will apply - now back to the argument lol - it is deemed in the UK that class II equipment is perfectly ok The basic requirement is that no single failure can result in dangerous voltage becoming exposed so that it might cause an electric shock and that this is achieved without relying on an earthed metal casing. This is usually achieved at least in part by having two layers of insulating material surrounding live parts or by using reinforced insulation. I agree perfectly this wasn't made clear in the video but we have cleared this up now - so thanks for that - but i still disagree with your recommendation and it may be something we have to agree to disagree on as the proposal I put forward is within the IET Wiring Regulations BS 7671:2008(2011). - 17th edition if you like.

Robert Murray-Smith It is only a recommendation, an idea you should take into account. Ultimately everyone is responsible for ensuring that he does. In Germany, one would thus end up before the prosecutor from having someone gets hurt.

Michael Zieger incidentally the same regulations apply to the cables connecting the device to the supply which is why the cables can be just clipped to the wall without requiring conduit - though conduit would be a good idea and it looks prettier - at least to my mind

Copper Tape 1cm wide? Looks to be 1". Please confirm TY :)

no sorry mate - I made this quite a while ago and the ink has changed since

you are right it is an inch - but to be honest it won't have that much of an effect

glad you liked it mate

cheers mate

awesome idea cheers mate

Mo Kha this was meant specifically for you mate.the possibilities are endless - you could paint coloured sheets of plastic attach a controller and plug and you can make 'art' radiators in any size imaginable - a good business!

Robert Murray-Smith that s really excellent, thanks Rob. I talk about it and someone want the same radiator. I have to do it in a coffee shop . First order for december!!! I will you my best doing it. I will show you.

Mo Kha That is excellent mate - shame you are so far away - if you could come to the lab I would help you build your first one

Robert Murray-Smith that s a very good idea. I appreciate mate.

Mo Kha no worries mate

The planned obsolescence is controlled by you , the designer.

Ahhhh - GUM ARABIC!!!! just had a look at the patent... omg.

I am sorry mate - that's awesome - this particular video was done with a wireless lapel mic. I think the problem is that this isn't a recording studio

no

+Sean Blanchard i did a video on how to make it mate - so we no longer sell it

Larry Markham it is already in there .That is what makes it conductive.

Doug Steere you can order the ink from Robert. Look on some of his other videos. In the description you can find his store . O r you can watch all his videos and make it yourself. They sale conductive paint in the US , but it's not as good as making it .

+skaltura lol - go for it mate

B and Q as it happens - it is meant for underfloor heating mats - which is essentially what this is but in a can lol

Robert Murray-Smith Hi Robert, I notice that your Product Sheet says the ink is intended for low voltage but in the description above you say it pulls 3 amps at 230 volts. I have also seen your other video about using house mains. Is your controller sending 230V through to the mat or is it reducing the voltage? I ask because I have bought a Heatmiser DS1 (www.heatmisershop.co.uk/heatmiser-ds1-el-digital-electric-floor-heating-thermostat/) and when it arrived I see the output to the mat will be 230V 13A. Do you think this could be a problem?

John Mackerras not in the least mate - the controller is rated at maximum. the heating element will pull the amount of amps you design it for and that is based on your voltage supply and the resistance you get (using ohms law - I use the DC values as an approximation of AC) - when you design your heating element you can design it to pull more than 13 amps as above that your controller will fail - but below that is no problem at all.. The ink will cope quite happily with thousands of volts - but as a product for sale to the general public I have to cover my own back so it is rated for 12 volts and anything above that is at your own risk and comes with no guarantee from me - I am sure you understand - in this day and age there are plenty of idiots out there who will attempt to sue. In the other video i used a house dimmer to reduce the voltage to 40 volts i think

+Robert Poynton no mate it's a special resistive paint i made up

+Robert Murray-Smith if your ever in Australia I want to buy you a beer.

+Robert Poynton you are on mate lol

aslimline S it really is a piece of cake mate - just get your resistance right and you are off

Robert Murray-Smith sorry I didn t heard what is the right resistance. How much is it? And if I want to use low voltage, the resistant have to different?

Mo Kha use ohms law to calculate based on power you want to put through

Mark Durbin yep you are 100% right -oops - and thanks mate lol

Robert Murray-Smith is there some reason not to use HR inks themselfs but cooper tape? Sorry, it this sounds stupid, just get some problem to get 1'' copper tape in my country.

good idea lol

i've seen both

we don't sell it anymore mate - we did videos on how to make it yourself

Ah! OK I shall dig the videos out and have a go. Thanks!

yes it would - i just need about 2,500 to buy one lol

Robert Murray-Smith same point I'm stuck at. luckily my work has a flir I was able to borrow for some of my projects.

you lucky boy lol

the flir one for iphone 5 is about $200 USD

yeah but the iphone is US$600 or so lol

absolutely mate - though if you stepped the voltage down that wouldn't be a problem either i guess

You'd have to isolate it rather than step it down, so it's no longer earth referenced. A easier solution would be covering it with another conductor that is grounded so the ground fault interrupter trips if someone were to drive something through the wall. If it where my own house I'd just mark the location of the panel though. I have the same problem with cables hidden in the wall, so I just keep them visible.

no idea mate sorry - you will have to experiment

my son showed me this and I asked him to pose the question. I have solution, need to find out how to purchase your ink

thank you for your prompt response to my son

I'm hoping to be able to use your "wall" in conjunction with a in-floor heating system using the same thermostat and power source...

I am afraid we don't make the ink but we did do a video on how to make it yourself

+Marc Humer thanks mate - i am trying to correct this

+Robert Murray-Smith Perhaps using a small mic on a clip with a MP3 recorder attached to you, you would then have to sync the audio with the video, that should be pretty easy to do with a video editing program :).

+Thomas Syxe not likely mate have a look at this vid on this topic kzfaq.info/get/bejne/hZyKptR3vL6zkXU.html

I totally get it

+Thomas Syxe good on you mate