Will it make it less brittle too?

Seems like a lot of wasted time when you can just buy a unit instead of Jerry rigging one but that’s just my opinion as a plumber and heating contractor

I thought at first you were using a car radiator and water pump connected to the hot water heater with a 12 vdc fan blower.

I have actually noticed the LED bar lights I installed on my garage ceiling have a dim glow to them when it’s dark in there and the light switch is off. I don’t know what causes it. I thought maybe the 60hz AC power at the lightswitch was able to create enough EMI to slightly translate to the LED strips, and since they are such low power, it doesn’t take much EMI to actually cause them to glow a bit. Just a theory but kindof neat.

Sorry to everybody for not replying. My tablet kicked the bucket and then I got locked out of my account and somehow just managed to get back in! I've been using this system 3 winters now. I use the slab AND forced air both. The trick to the slab is to start maintaining heat when the leaves start to fall. LOL! I know that doesn't really sound too technical but the trees drop their leaves based on ground temp which corresponds to your slab temp. Yes, the 40 gallon water heater WILL keep up, even when it's into the single digits.....as long as I'm reasonable with my temp selection. I don't want it running 24/7 and costing me a fortune. With daytime highs in the 50's I run the slab at 62*. With highs in the 40's I bump down to 55*. And if the highs stay below freezing I bump down to 45*. The whole shop stays within 3* +/- of the slab temp at any given time. If I'm working out there and want extra heat I'll bump the forced air up 2* at a time until I'm comfy working in a thermal long sleeve. Running everything this way allows me to work comfortably and has proven to run only $3 per day maximum in the colder weather. Inside the repurposed meter box are a couple HVAC contactors and a 24v transformer which were also pilfered from scrap HVAC equipment. The slab is controlled by a Tekmar thermostat with a slab sensor. The water heater HAS 2 elements but only runs one at a time in standard residential configuration. Medium speed on the forced air blower seems to work best for me. I also have a toggle wired into the fan coil pump so I can run fan only WITHOUT pumping heat just to circulate air and catch dust while painting, etc. I hope this clears some things up albeit terribly late!

How much did it increase your electric bill

Very nice work, old gm cars suffer this problem

Heating with water can be a very expensive , I have a few pointers to anyone thinking of such a project. First I want to tell you I live in the middle of Manitoba, one of the coldest climates in North America. I have a 50 x 30 foot shop with 14ft ceiling. I lowered my costs from $15.00 per Day to $2.00 per day by following these simple steps. First step is to get rid of the hot water tank and all the plumbing materials. I tried a larger tank but all I got was larger bills. I ripped out all my piping and started over with schedule 40 black steel nipples and fittings, way cheaper than copper. (Purchased all material from the heating dept not the plumbing) Made a primary loop and mounted the elements directly into the piping. (Only heat the water being used) Put in polypropylene glycol, It heats up faster and holds the heat longer, it wont freeze and it keeps the insides clean and clear. Insulate. Make sure the ceiling is R50 and the walls R30. I added 4” of closed cell Styrofoam along the outside of the concrete foundation and insulated the wooden overhead garage door. Make use off all the heat. I added a heater from a cube van and mounted it so that it blows in front of my overhead door. I have it ducted down from the ceiling. I connected the coil to the primary loop. I am currently installing 25 ft of 1 ¼” baseboard convection heat I salvaged from a school being torn down in the loft area. I have an occupancy sensor that turns one element and the fans off and lowers the temp to 16C when I am not there. I installed a small glycol recovery tank because it heats so fast it expands and releases out to 30 psi relief valve and a solar panel form an RV for the controls and fans. For insurance purposes, I got all the manufacturers paperwork with ULC and CSA approvals for heating use for all fittings and components except for the van heater.

There are a couple of issues here. First of all most electric water heaters produce only about 15,000 btuh. That won't heat too much space when the weather gets cold. But the plumbing is just fine. When the slab heats up it will most likely be able to keep up.....unless the weather is severe.

Instead of a hydronic coil, could you use a car radiator?

Like your system! Great video!

How long do you think a glass line watertank going to last . I hope you are there when it lets go.

Throw 8 solar panels on the roof and get it done for free.

Do you mean efficient or effective. Electric is pretty much 100% efficient but may not be effective in providing heat where you want it. The warm air system will end up with a much higher temperature gradient than the underfloor so you might be heating air at high level that is no use to you. Underfloor heating, providing that the floor incorporates at least 80 mm of rigid foam insulation, will provide comfort conditions at lower air temperatures as it it low grade radiant. I have a similar arrangement in my ancient watchtower with 30 gallon or 135litre hot water tank and 3Kw immersion heater. However my floors are suspended timber so react much quicker than pipes embedded in concrete/screed where there might be an 8 hour time lag in thermal response. Normal practice would be to generate/store water and operate the underfloor coils in the range 45 to 55 deg C with a temperature drop between flow and return of 10degC. This gives a maximum floor surface temperature of 27deg C at 20deg C air temperature. Usually, 18 or 19 deg C is a comfortable domestic temperature though lower temperatures are probably better for areas of active work. I would normally start by calculating the building heat loss to size the required heating element and yes initially you need to put the heat into the concrete slab which has high thermal capacity but once done the heat loss and energy use should stabilise to meet the steady state heat loss.

Thanks your video gave me a great idea!

I personally build our 3-Phase 45,000 watt PID Controllers for Vengeance Stills, we manufacture Alcohol Stills (Bourbon, Tequesta etc..) and Commercial Botanical Stills (Essential Oils like Lavender, THC), made in 🇺🇸 proud to say :) You Sir are an absolute absolute genius 👏 I also have read the many naysayers surrounding the whole Hydronic Heating Systems (Salesmen / Folks who would rather stroke a check rather than run the risk of wasting hard earned money). To my surprise your video was the "next one" that continues while watching KZfaq. - You stole MY IDEA, albeit you had it a year before me lol- Can't tell you how big my smile is :) .... I too am embarking on your nearly identical build, 4 loops to the T, each using the whole 300ft of coil so each loop is 100% balanced eliminating valves at the Manifolds. Yes, there are a couple runs where the pex is less than 12 and some a little over. Whatever in the grand scheme of things. I can build a PID with 60amp solid state relay to turn the pumps on from using PT100 or K Type thermocouples to call for heat. My question... Is that what's behind the curtain in the mystery repurposed Meter Box 🤫🧐😊 Also intrigued about the air handler as we also use copper coils to condense Spirits and Oils, unlike your intuitive application. [email protected] Humbly seeking your advise, cp

Skip to 2:15 to start learning about the hydronic system.

Nice setup! I’m building a 48x66 shop and have an 80 gallon marathon electric water heater, I plan to use. Have you used the floor heat this year?

You said 2X4500 watt?....so, two pole 40 amp? Your bx cable doesn't look heavy enough to carry 4500 watts X2...single leg 40 amp. needs number 8 wire.

I’ve been thinking about this exact same thing for years! Nicely done! I was leaning towards natural gas but for my much smaller garage it might just be efficient enough to not bother with natural gas and venting it

Very nice and simple setup. I would like to do something lime this to heat my house. I already have a wood burner. But since I have added solar I would like to use a electric hot water heater instead. I already have a hot water to air exchanger in the furnace plenum. Just a matter of installing the heater and pump to run in the exchanger loop...

I wanted to see the mulit

Joe dirt in jet ski gear

You are a legit MacGyver 👌 well done

You got skills

This is really cool . Got to be nice steady heat .

Nice set up, everything I needed to know. 👍

What’s your water temperature setting in the water heater?

I'm confused. If it's too cold to start heating the slab now, how will it be able to maintain temp in the future? Won't it be too cold to run every winter? Whether you start it up in the fall or not? Is there insulation and vapor barrier under the slab?

Impressive setup. Did you run the hot water system this year? If so, how did it do?

I did the same thing only with propane high efficiency water heater and took about 3 days for the slab to reach 62 degrees. 40 gal 36000 btu water heater turned on Jan 2. You must have something wrong because it doesn't take long to heat a slab up with water.

That is simple and great idea . Not as much heat loss with concrete acting like a heat battery . So if you open the garage door the shop still stays warm .

Very nice shop design , i like the open truss high ceiling !

I bet you would save at least 50% of your electric bill with a hybrid... heat pump water heater. It may require a storage tank to hold the heated water... slow recovery

I'm about to do the same thing, what are your elec costs?

Nice, we are studying about hydronics in school. I would like to put one of those in my garage. Thanks for sharing. #PEACE✌🏿

Nice, I am doing this in my new garage up in British Columbia, Canada. I am doing it with a natural gas water heater!

Great video. I appreciate the honesty and no nonsense approach.

Needs rebuild

Have you tried this on headlights?

That’s a sweet ass mullet

That’s a sweet fucjin mullet

Check out that fuckin sweet mullet

Hell ya

nice advices !

Good method but you need to be aware that you're releasing lots of microplastics into the environment the way you're doing things. Instead, do the scraping of the rotted plastic into a garbage bag so all those microplastics will at least go to a proper landfill and not be transported by runoff into the watershed where they can build up in the food chain.

Most dirt bike guys scrape the plastic, then wetsand with 400 for bad spots, 800, then 1500. Then go with a wool buffing pad on the drill with no wax on it, keep moving so you dont burn the plastic. Then wax.

Im gonna try this but have cracks...i use the same protectant. Thanks.

Is it for sale?

we call that the tard hop