Shower hot water only- Bosch 2.5 gal electric or tiny camplux on demand ?

[llamalander]

C-value is like the size of the opening in a container, it is a physical limitation on the amount of energy that can go in or out of the battery. I could have an olympic size pool, but if I could only empty it with a drinking straw, it wouldn't be much help in a fire.

However large your solar or inverter is does not matter if the battery cannot sustain the discharge required by the heater. That value is specified by the manufacturer for the particular battery you have. Likewise, the BMS (battery management system) can also put a limitation on the amount of current that leaves the battery. If either of these two factors can't support a 115-120amp draw, your heater will either not work or it could catch your equipment on fire.

I know you don't have a Jeep. I also know that willing an electrical system to work beyond it's capabilities will not make it so. I see lots of question marks and little understanding.

If you want to play with high-current electrical, understand the specifications of your equipment, the limitations of your installation and the risks of transgressing, which generally include fire, electrocution and slagging expensive equipment...
or don't, I won't be camping anywhere near you.

 

[Roktman]

C-value is like the size of the opening in a container, it is a physical limitation on the amount of energy that can go in or out of the battery. I could have an olympic size pool, but if I could only empty it with a drinking straw, it wouldn't be much help in a fire.

However large your solar or inverter is does not matter if the battery cannot sustain the discharge required by the heater. That value is specified by the manufacturer for the particular battery you have. Likewise, the BMS (battery management system) can also put a limitation on the amount of current that leaves the battery. If either of these two factors can't support a 115-120amp draw, your heater will either not work or it could catch your equipment on fire.

I know you don't have a Jeep. I also know that willing an electrical system to work beyond it's capabilities will not make it so. I see lots of question marks and little understanding.

If you want to play with high-current electrical, understand the specifications of your equipment, the limitations of your installation and the risks of transgressing, which generally include fire, electrocution and slagging expensive equipment...
or don't, I won't be camping anywhere near you.

lol wow llamalander, are you replying to me or rebuilder,as for “ little understanding “ I wasn’t even asking about electrical capability, I actually have a pretty thorough understanding of that, my original question was concerning experience with a couple heaters can you “understand “that, as for not camping anywhere near me that’s probably a good idea, please don’t reply

 

[andy_b]

lol wow llamalander, are you replying to me or rebuilder,as for “ little understanding “ I wasn’t even asking about electrical capability, I actually have a pretty thorough understanding of that, my original question was concerning experience with a couple heaters can you “understand “that, as for not camping anywhere near me that’s probably a good idea, please don’t reply

LOL

IDK that I have seen any understanding to any of the topics discussed thus far. @llamalander is providing a very important insight into how batteries (especially modern lithium iron phosphate and other non-lead chemistries) work and how their limitations may impact the ability of your project to safely work the way you intended. Discharge rates seem poorly understood here on ExPo and these factors are not commonly mentioned in the battery marketing. He was honestly only trying to help you out.

 

[kga1978]

One thing to consider - do you really need 2.5 Gallons? I have a setup with a 1.3 Gallon tank (thermomate Mini), 2000W inverter and 200Ah 12v system - it works great. I also use induction cooking, yet I have plenty of power for a shower at the end of the day - it heats up in 10 mins and then the water will stay warm for a few hours.

 

[Roktman]

One thing to consider - do you really need 2.5 Gallons? I have a setup with a 1.3 Gallon tank (thermomate Mini), 2000W inverter and 200Ah 12v system - it works great. I also use induction cooking, yet I have plenty of power for a shower at the end of the day - it heats up in 10 mins and then the water will stay warm for a few hours.

Hey Kga1978, that sounds interesting it sounds like i need to dig alittle deeper into this, ill check out this thermomate mini, i do like simple and small