Make electric underfloor heating with warmup, isolate the concrete floor, make self leveling.

[@pippelsinipippelsini9267]

First of all. The cable must be measured by resistance measurement. The cable usually comes with paper showing the resistance of the cable. If the resistance is significantly different, the cable is broken. The measurement is made before and after installation. It should also be good to measure that the ground is not connected to others. The sensor should be placed between the heating element cables. The sensor should always be installed in a plastic pipe (a flexible pipe is good), because if the sensor breaks down it must be replaceable. (I have changed dozens of broken sensor cables.) In this case, I would have cried. Otherwise a good video. Regards from the electrician.

[@askhowtube]

Thanks for the advice, all the best to you.

[@Scumsuckingpigmonkey]

I might be a dumb Bricklayer but I'd guess you would need something like "Absolute Zero" to get close to zero resistance. let alone the material. Though I'm happy to be wrong.

[@MrGobacktoschool]

Will this improve an EPC rating in the uk or do you need to use more insulation?

[@mac8050]

Hi guys what areas do you work? Also what did you do for around the door frames?

[@222narikim]

The highest area in my concrete slab is 2 inch higher than the lowest area. Can I still install underfloor heating? I am afraid if the heat goes all the way up

[@martincraggs1162]

I've just had 75mm of kingspan foil insulation laid onto a concrete floor with 30mm of screed on top. Can underfloor heat mats be laid directly onto the floor with it having the 75mm or will boards have to go down?.. Thanks!

[@askhowtube]

Hi, yes ... the insulation I have used is because there was no insulation at all underneath the concrete, but if you have celotex, or kingspan as on your case, it’s perfect. I recommend minimum of 100mm insulation but I am sure 75mm will do the job as well. Good luck. 😄

[@martincraggs1162]

@@askhowtube great thanks for your advice. We didn't have the height for 100mm so had to make do with 75

[@flooriqengland1101]

Have you heard of the way we lay underfloor heating in the Netherlands? We cut into the concrete using Diamond-Tipped Blades. Those perfectly-measured slots are then filled with UFH pipes, and refilled. A super effective way of installing Underfloor Heating on a large scale. All big projects here are laid using FlooriQ Concrete Milling Machines. There's even fully self-driving machines now.

[@janewrin1830]

Yes, if you want a wet system, but in some places they want dry UFH. I have a job where the cost of wet is too much for my customer.

[@mvwoon]

it has continuity with 20 Ohms or whatever. If it was actually zero then it wouldn't heat anything other than your circuit breaker.

[@andreasandreou3863]

Is it good heating system for heating your house??

[@viktorlikovski100]

Can it be installed straight on the concrete?

[@askhowtube]

It’s pointless, because all the heat will go down on the floor… you insulate the floor to stop the heating going down…

[@quietjohnoutandabout6578]

Thanks for the video. There was a lot of good information ij it. I am planning to replace a back porch with a bathroom with radiant electric tile flooring. Underneath this bathroom will be unheated. Water lines will be under there. I live in Pennsylvania where it will be freezing. Will this be an efficient system with the freezing air underneath? Will the heated tile flooring help keep the water lines from freezing?

[@Therealxiu]

you put the probe near the heating wire. That's wrong. the probe will not indicate the floor temperature but the wire temperature

[@rodrigovasconceloscarvalho411]

Hi. Your reading doesn't need to be 0 to prove continuity.. 0 is actually a bad reading. It would mean short circuit.

[@askhowtube]

What reading should be? I have touched both pins and showed 0, after I did the same with the heating mesh and it showed same which means continuously… I have learned this from an electrician, and never had a problem, everywhere I have installed underfloor heating I did the same, never had a complaint… how you doing it?

[@mvwoon]

@@askhowtube they have instructions on the box on what the resistance should be. You had it right at 5:09. Resistance of 3.5 Ohms is good. Zero would mean it's a normal wire and won't heat. You actually want to measure to see if the resistance changes from 3 Ohms to 30 or 300 Ohms because that means a crack in the wire occurred or there's a bad connection. If you turn the meter up to the range that forces it to read zero you could miss a crack or bad connection. Thanks for the video!

[@stefangeanta]

Sonda termostatului este montata incorect, este prea aproape de cablul încălzitor si nu va masura corect temperatura.

[@askhowtube]

It is working perfect…this is the way I have always did it everywhere … and I have learned from warmup to do it that way… thanks for the advice anyway. All the best.

[@stefangeanta]

@@askhowtube 👍

[@dmat4356]

Where can I buy the insulation board in Maryland, USA?

[@askhowtube]

I’m sure you can find it if you’re google it... Goodluck

[@360clive]

The meter was reading 3.5 ohms which would be about right, to be expected, all that about reading zero is nonsence!

[@askhowtube]

I have not measured the heating mesh... I was checking it for continuity... so to me made sense... if it wasn’t show zero, it would of been a problem.

[@360clive]

@@askhowtube 3.5 ohms was the loop resistance! Need to know how to read a multimeter! And have an understanding if electronics

[@askhowtube]

@@360cliveNo offence,but I can see that you have no idea what I was doing there...doesn’t matter what the meter was reading, my interest was to check if the wire is disconnected... I don’t need to measure it because it was written everything on the box...the company offers warranty on the product, but if the wire is disconnected you cannot put the blame on them after you installed it... if it’s damaged, you need to take it back before you fit it... do you understand? I don’t really care what the meter was reading, as long as is showing me that the underfloor heating sheet hasn’t any disconnected wire...better than this I cannot explain mate...

[@docj3wls573]

@@askhowtube I have to agree with 360Clive. The wire has a resistance not zero! The longer the wire the higher the resistance! Resistivity of the copper which also proportional to the cross sectional area. If the was a break it would show infinite resistance hence the meter was showing 1 on the left indicating infinite....

[@askhowtube]

@@docj3wls573 no problem mate, what it matters to me is that the underfloor heating is working, and whatever the number of customers I have done same thing, no one has ever complained. Happy new year...

[@tombailey6342]

I thought you had to put scim tape on the board joins?

[@askhowtube]

No you don’t have to. Good luck.

[@rocket3man]

Enjoyed watching but my ears ache from the music

[@askhowtube]

Everyone complains about the music, but as I am making some parts of the video on fast mode, it cannot be without music, and I cannot choose whatever music I want, because KZbin will delete my video due to copyright.

[@sydneypauley3187]

There are a couple of things you have done wrong, you did not prime the insulation boards prior to laying out the warm up matt , you should fit tha matt closer too the wall as the heat spreads between the straight lines and not very well from the loops that are near a wall, your biggest mistake is that you have put the temperature probe beside a warm-up wire this will result in incorrect temperature readings, it should be placed directly in between two wires, and staples will not hold in foam.

[@askhowtube]

Thanks for your comment… With all the respect, I disagree with everything you said… -The Matt I have not put it closer to the wall in purpose for two big reasons… 1st reason is that is pointless to heat the sides, as there will be furniture, sofa, and 2nd reason is that the heat is spreading anyway… so it will be warm there too, on every job I did the same, and in my honest opinion is money waste to buy bigger matt just to put it from the edges of the wall, when as I said the heat will reach anyway… - YOU DO NOT NEED TO PRIME THE INSULATION BOARDS… they’re new, no dust, and they don’t have a smooth face, contrary the surface is rough in purpose so the self levelling will stick properly. -the sensor is perfect where I put it, because as I said heating is spreading out, so when the floor is getting cold, the place where I put, will get cold first, so it needs to start and keep the temperature as it was set. -Staples did hold in the “foam” as you said, because this is not the “foam” you use at the doors and windows, this is a special insulation made in purpose for this type of job… Question did ever did an underfloor heating? Because, no offence, but looking at your comment, I don’t think you know what is this. Goodluck.

[@sydneypauley3187]

I have done many floors, the edges will not get warm, the boards are a thin piece of foam with a thin layer of cement on either side, staples will not fix to those boards. The warm up instructions tell you to prime the boards and that the probe must be placed centrally between the heating wires. You should stop talking rubbish and correct your mistakes as everything else you are doing seems to be OK.

[@askhowtube]

No problem mate.

[@tonygrace4946]

​@askhowtube if using more than 1 matt, are cables joined, or how do you get it back to thermostat.

[@sydneypauley3187]

@tonygrace4946 you cannot join the wires on the mat as this will change the values of the mat, you have to start the mats at the thermostat and go in different directions.