Domestic Hot Water from a Woodstove

Thanks to all for an excellent article/thread. I know its old hat to all of you, but I just found it. I think its good that the older threads are being brought back up for all of us newer members! I am going to give this some serious thought as it should be pretty simple to fab up and install.

 

Pretty cool thread! Subscribed, and thanks. Although this applies more to y'all up north than it does to us down South.

 

Excellent content, helps me get ready to set up the castle basement log burner and hot water in cold months. Here's the type of warm weather water heater we will use, except ours will be massive, huge pipe and at the top of a tower. Ever grab a water hose on a warm day? Same concept...except black PVC pipe will get even hotter

 

Yes, greenpowerscience.com did a rooftop solar water heater for a shower.

 

Question regarding using your stove for hot water. @ColtCarbine is the guru for this stuff and I have read all he wrote on this thread. I have seen images of this set up:



It seem much more simplistic but I am wondering is it as effective? The article made it sound so easy-

 

I knew it was too good to be true. I have seen a few images of that set up with just a tank and coil. I kept wondering about the lack of relief valve and other parts. The tank and coil set up looks easy and the one I attached a picture of is in a tiny house. Simplifying is good unless it is dangerous.

 

No need for a relief valve, when the top opens for filling. The more coils, the more heat picked up from the pipe. Water circulates by thermal (heat rises, cold sinks, so yes, it is plumbed backwards)

 

For woodburner, you can also get a "water jacket" heater. They are most often filled with water and welded shut, to spread out the heat over a longer time. But I have seen them, with a hard waterline coming in, and a faucet for hot water out. Hard-line goes to an overhead water tank of a few gallons.

 

I really like this, Tobit!!!

 

To the top

 

I have always liked this thread and its posts....it is one of the more inspiring threads here.

 

I have long considered making a water heater over my wood stove but a little differently.
I have an RV water heater tank that is in good shape and all the externals removed .
My plan is to build 2 stove pipe Ts and divert that heat through the water heater and control it with a bimetal spring similar to what is used on an automotive exhaust manifold, for dampening and controlling the heat to the tank . Safety valve of course , but eliminates a lot of plumbing.
And by the way IMO I prefer using compression fittings with soft copper rather then sweating silver solder on rigid tubing . it's much more forgiving and more durable in extreme heat .The little comparative expense in fittings is worth it if you have to redo something.
plus I'm lazy .

 

And again

 

A good thread resurrection.

 

I built my system for the winter , solar in the summer!!


Since im redoing the solar now I take shots and explain the reason why !! Im SO anal on
safety and over protect ..
Sloth
I test this and get tested , then the rules are set for insurance ..
Same as we do at Midnite/Outback

 

I like the ideas here. My wife wants me to build an old fashioned Japanese style bath in the yard up in our place in the mountains. These baths were and still are heated with wood stoves. My wife's aunt's home near Mt. Fuji is 400 years old with a thatched roof. The water there is heated with a wood fire device. Her aunt just turned 101 BTW. I think we will be inheriting this place when she kicks the bucket. The ideas here seem workable. I have a spare woodstove and I think I can modify it to heat water. I'm thinking something along these lines in an old Japanese style shed...