
Hot water heaters are excellent at what they do: producing hot water. The one downside is that they suck up a lot of energy when producing that water. What if you could do the same task with wood? Look at this cheap build below.
With the help of physics, you can pump your water through a little wood heater like this to make it piping hot. Or you could use the information in this video to run a water heating coil through your home's wood furnace, combining the process into one heat source.
The benefit of the method in the video is that you won't also heat up your entire house while endeavoring to heat your water. What's important is the technique, so if you want to save a ton of energy, maybe you should consider trying this cool trick.

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I’m not sure what his problem was/is, but I bet it really has nothing to do with being German. Not everyone is outside in the winter – and I’ve hung shower bag in a windows inside while it was freezing outside and it’s warmed by the sun. Some people don’t comprehend what the read, it’s not limited to people from Germany 🙂
Phil Frazier
River/stream/lake/well/rain barrels
I’ve heated water with a method like this for as long as i can remember. It’s good for when your in a pinch and need small amounts at a time. not so good for larger amounts.
Ya man up and take a cold shower the smoke will attract people anyway
And how will you pump that water without electricity ? System like that needs a circulating pump and many safety devices . Who doesn’t know what they’re doing will kill themselves .
Antique store have old wood heated water heaters
To answer your actual question, you would tap into your overflow valve at the top and your drain valve at the bottom. Cold and hot lines remain in their original locations.
My well.
Glad to hear it, I’m doing well too!
The rocket stove is perhaps the most efficient stove there is and the system can be tweaked to ones own needs or desires.. I make hot water via liquid to liquid heat ex-changer as I drive my bug out vehicle. In a dwelling any heating source will do that hot water too.
I’m seeing some of the most idiotic$#%&!@*complaints here. Obviously people who have no idea what living off the grid is about. Please stay in town.
Greg Broussard, make one of these and you are ready for the Zombie Apocalypse.
5 gallon bucket painted flat black, witha hose bib added and hung in the sun will give you enough FREE hot water too take a nice shower…
I already heat my water without electricity it called propane.
Not a bad idea, but won’t work in Colorado
Having any water heater on standby is huge waste in resources. You only use this when you need it and in a lot of survival cases your using the stove to heat your shelter/ cook your food to.
I’m not an engineer, but I would imagine there is a limit to the height you can ‘lift’ the water.
So the genesis of my question would be if it is possible to place the water heater on a rack/stand/etc say 8-10 feet in the air and have the gravity pressurize the delivery of the hot water, say to a shower head or spigot. Realizing of course you would need to either blend it with cooler water for a shower, or once it comes out of the spigot, for safety’s sake.
Steve Soszynski what say you?
Jeff Lachance can you build ma one??
Laura Greene is that John?
Steve Applegate
Only about 4 months a year in Wisconsin
..
Matt Little
Thats both neat and simple.
no way!!!!!