Yes, I am playing with ideas here, nothing solid. One of the replies to my thread about the Camplux 5L got me thinking... those overlanding and adventuring without propane, these heaters are a non starter entirely.
So why am I pondering a propane shower / heater in the first place?
Honestly it IS nice to be able to set the temp, turn on the switch, and get water the temp you want. BUT...
#1. Depending on the input temp of the water, you will get a different output temp anyway. These work on the principle of set the flame level, I.E. heat gain. So if you are perfectly comfortably set so that 60 degree water becomes 100 degrees, and I know too big of a swing, but I will get to that, if you raise 10 degrees on input temp, in theory you go up 10 degrees in output temp and are uncomfortably warm / hot. Yes there is a limiter though...
#2. These seem to be limited to raising the temp by about 25 degrees. BUT, with further reading, that is 25 deg C, so if you are starting with 36 deg F to get that water showerable, you would need to do what I do with the Zodi and recirculate until temp is achieved. So you still need a bucket.
#3. There is a whole other fuel system required. Propane tank, hoses etc... Not exactly convenient. And sometimes, in the middle of Wood Chopperville Oregon or Cowboy Junction Texas, Yes I know made up stereotype names, live with it, you get the point I would hope. Podunk towns, you should be able to find gasoline, but propane fills or exchanges are undoubtedly going to be out of the question. And if you have half a brain, you have at least 5 gallons of extra fuel for the vehicle.
#4. Going with the on demand heaters seems at least to my mind, and I could be wrong, but it seems more of a thing I would want to do if I were setting up a dedicated camp trailer / van build / etc... Not for tenting, where I could build in the propane supply. I will be doing that down the road, but am nowhere near ready for that at this point, and have other places my money needs to go...
There was a point a couple of years ago I made a heat exchanger coil out of 3/8" copper tubing that I coiled up and basically stuffed in a Sams Club tomato can that was exensively ventilated on the top, and then attached via 3/8" tubing to a Zodi battery powered shower pump and then in turn to the Zodi shower nozzle. This worked well enough stove top, or off the camp fire, but really was less than ideal...
The next step was to eliminate the heat exchanger, and instead take my largest pot in my family cook set, which is 6qts, and my 12 cup percolator, and heat up water on the stove or camp fire. This is one of those cases where you need to lift the pot using a pot holder. The handle gets HOT.
Mix the heated water with cool in a 5 gallon bucket until you achieve your desired shower water temp. WIth the battery shower in the ensuite, move the bucket in, drop the pump into the bucket, get naked and shower away...
We did this during the February power outage with just barely above freezing water (36 degree), and were able to enjoy nice bone thawing, life giving hot showers. Yes I ran out of propane for my Zodi... No to very little setup hassle, and really no issues operationally other than we had to bring something like 2 gallons of water to a boil. Typically the 6qts would go to my wifes shower, the 12 cups to mine. My wife tended to stay in the shower longer and used up a full 5 gallons, I went shorter and used maybe 2.5 gallons... Trying to insure I had enough fuel in case the outage went longer...
Anyway, this method isn't as tidy or convenient, but it simplifies pack in / out, and with a little bit of effort, rewards us with a nice hot shower at the end of the day. Since I am packing items grouped together in square 5 gallon buckets, I can use one as a water source, which means the only additional pack in is the battery shower and spare batteries just in case. All in all, not a bad deal. Something to consider anyway...
So why am I pondering a propane shower / heater in the first place?
Honestly it IS nice to be able to set the temp, turn on the switch, and get water the temp you want. BUT...
#1. Depending on the input temp of the water, you will get a different output temp anyway. These work on the principle of set the flame level, I.E. heat gain. So if you are perfectly comfortably set so that 60 degree water becomes 100 degrees, and I know too big of a swing, but I will get to that, if you raise 10 degrees on input temp, in theory you go up 10 degrees in output temp and are uncomfortably warm / hot. Yes there is a limiter though...
#2. These seem to be limited to raising the temp by about 25 degrees. BUT, with further reading, that is 25 deg C, so if you are starting with 36 deg F to get that water showerable, you would need to do what I do with the Zodi and recirculate until temp is achieved. So you still need a bucket.
#3. There is a whole other fuel system required. Propane tank, hoses etc... Not exactly convenient. And sometimes, in the middle of Wood Chopperville Oregon or Cowboy Junction Texas, Yes I know made up stereotype names, live with it, you get the point I would hope. Podunk towns, you should be able to find gasoline, but propane fills or exchanges are undoubtedly going to be out of the question. And if you have half a brain, you have at least 5 gallons of extra fuel for the vehicle.
#4. Going with the on demand heaters seems at least to my mind, and I could be wrong, but it seems more of a thing I would want to do if I were setting up a dedicated camp trailer / van build / etc... Not for tenting, where I could build in the propane supply. I will be doing that down the road, but am nowhere near ready for that at this point, and have other places my money needs to go...
There was a point a couple of years ago I made a heat exchanger coil out of 3/8" copper tubing that I coiled up and basically stuffed in a Sams Club tomato can that was exensively ventilated on the top, and then attached via 3/8" tubing to a Zodi battery powered shower pump and then in turn to the Zodi shower nozzle. This worked well enough stove top, or off the camp fire, but really was less than ideal...
The next step was to eliminate the heat exchanger, and instead take my largest pot in my family cook set, which is 6qts, and my 12 cup percolator, and heat up water on the stove or camp fire. This is one of those cases where you need to lift the pot using a pot holder. The handle gets HOT.
Mix the heated water with cool in a 5 gallon bucket until you achieve your desired shower water temp. WIth the battery shower in the ensuite, move the bucket in, drop the pump into the bucket, get naked and shower away...
We did this during the February power outage with just barely above freezing water (36 degree), and were able to enjoy nice bone thawing, life giving hot showers. Yes I ran out of propane for my Zodi... No to very little setup hassle, and really no issues operationally other than we had to bring something like 2 gallons of water to a boil. Typically the 6qts would go to my wifes shower, the 12 cups to mine. My wife tended to stay in the shower longer and used up a full 5 gallons, I went shorter and used maybe 2.5 gallons... Trying to insure I had enough fuel in case the outage went longer...
Anyway, this method isn't as tidy or convenient, but it simplifies pack in / out, and with a little bit of effort, rewards us with a nice hot shower at the end of the day. Since I am packing items grouped together in square 5 gallon buckets, I can use one as a water source, which means the only additional pack in is the battery shower and spare batteries just in case. All in all, not a bad deal. Something to consider anyway...