Satamax Antone wrote:Russell, plan a bypass, to get the chimney warm, and get things moving. Just in case. Peter usually says, make the bypass at mid height in the bell.

Good idea bro I forgot bout a bypass lucky I still just have dry stacked brick lol. Some more pics below with comments sorry bout the darkness. Midnight here. Or I could lift the bath another 6 inches  then only bout three bricks high to top of riser

Hope this one shows the bell height better

We built this rocket stove and copper coil heat exchanger to fill these two tubs with hot water. This is our Mendocino county California hippie hot  tub deluxe. I did find a steel plate to put on top of the heat exchanger and that made the water get a lot hotter.  we hooked up a regular garden hose to one end of the copper coil and a hose on the end other end of the copper coils which fed the tubs with hot water we did have to be careful not to create steam it can be pretty dangerous I. Am thinking next time That i build something like this I'm going to use a heat exchanger that is in the loop back to the tub where we can create a thermosiphon and instead of continually feeding the water can be continually heating once the tubs are full.

Should thermosyphon set up like that too just need to put a couple balance pipes  between the baths to heat them both at once. One down low join the waste connections together for the cold return to the bottom of the coil. And the other balance pipe at opposite end bout 6 or 8 inches from the bottom. Once my bath is set up properly and running next project is one of these.

New inlet bell size I think she will work this time. Roof of bell will be 250mm above riser 500mm x 400mm rectangle height is 600mm down to a 500mm x 200mm opening tapering away from the rocket towards the bottom of the bath.

Hello I would like to share a hot tub we built in our garden.
We used earth and stones around the bathtub to keep in the heat
Check out the link ...
http://ademas.es/rocket-barbecue-hot-tub/

Awesome setup

Sweet I had never thought of doing this I now have my first cob and rocket heater project

I am also on the way for a rocket bath
3 points below

James Heap wrote:
1- the primary heat source ideally should be solar or better yet a compost hot water heater, like the one developed by Jean Pain. The rocket is there for a booster to maintain the desired temperature as this varies amongst people.

2- I felt the experience of bathing under the stars was a one up on inside (personal preference), so that was the whole point in the 'outside' bath.

3- Remember to find a bathing buddy, it saves water

1- I will try to have a system for heating water but mainly will rely on solar water.
My bath will be near the exhaust pipe and will benefit from heat as a bench.
My main idea is that I will look at the fire from the bath!
As I could not have the fire visible from the living room, I build the bath room where the fire is.

2- Having a fire outside JUST for a bath is very romantic and nice, but a lost of energy, as it  all goes away apart from the bath.
+ I want to bath in a warm room, it is more important for me than warm water from the RMH.

3- Thought about it as well.... but then what when you are alone... so I have found a design that allows me to use for 1 or 2 persons, and use the right quantity of wáter.

Actually, I want a bath just to be able to  take salt  bath, or epsom salt bath, for HEALTH REASONS.
Or else, sure that just the shower I have is enough for washing myself!

Also, I needed to think about where the water goes, because not all plants like salt, and so I will think about a piece of land just for salt loving plants!