This may be wacky but how about heating smaller volumes then upping the volume incrementally?

I need to boil continuously for about 10-15 minutes.

I know you've probably built your tank already, but I'd be inclined to talk to a sheetmetal guy about building a tank and using a series of propane burners as the heat source. Or building a tank and scabbing together a series of electric burners from an old stove. It seems like your need to immerse the heat source is going to be your achilles heel on the project.

I think a gas beer kettle is the way to go. So many brew places have gone under I would think you could find used if they haven't already been scraped.

Shaun,

I worked at a large aluminum manufacturer in years back. We had two anodizing lines. One was huge. One was smaller. You are running a similar process. I would suggest reaching out to anodizing / plating industry people. There are commercially viable solutions to your questions currently being offered. You will want consistency and repeatability in your process. I don't think a stove burner will give you this in the long run.

Good luck! Just my $.02 worth.

Do you have natural gas service? Going w same concept as the lp burner but with indoor safe gas. Admit it you really need a good wok burner in the shop to make lunch

big burner they sell for crawfish boils would be better. There a re large scale imersion heaters. A quick serach, but I am sure there are cheaper varients.

https://spacare.com/hydroquipbaptistery6kw220voltsimmersionheaterbis-60-240.aspx?gclid=CjwKCAjw-eKpBhAbEiwAqFL0mjB-l7xrnvRC4OO4gdYhnbaDQxTgtDANQJ0ZEmFgEsSh0e4Jozw_9h oCiDIQAvD_BwE


There is alot of thermal energy in heating 50g of water to 100 deg c liquid, then there is a ton more to take it to rapid boil as you are constantly losing the imense heat of vaporization.

Not sure what wattage you would need, depends on alot of factors like time and ambient conditions however. Buring things will be alot cheaper than relying on angry electrons.

Morebeer.com has the single coil elements you want.

How much electrical power do you have? If the online calc I looked at is right to bring 50gal from 68F to 210F with 30,000w (that is 136A at 220V) will take about 35min. Will need a very well insulated tank.

Its bad for the element because bubbles form. Any immersion heater needs constant water contact. I'd look for a couple 3000w immersion heaters and some means to circulate the water so that the area around the heaters isn't above the temp of the water bath.

Something like this?

https://www.smokylakemaple.com/product/16-x-30-gas-fired-finisher-evaporator-customize-it/

https://www.smokylakemaple.com/wp-co...isher-evap.jpg

https://bascommaple.com/cdn/shop/pro...g?v=1564442572

The boiling point of sap is higher than water due to the sugars

Some of the larger Sugar houses have very large pans.... They use wood, gas or oil fires I've never seen one that used electric elements... I sense there is a reason for that.

There are many industrial water-purpose electric elements available online galore.
For a price..

Whatever the purpose keep in mind that stainless steel is a poor conductor of heat.
Wasteful and slow to heat up for only 15 min batches.
Store and use all materials in one go.

A temp housing of brick/other might be built up if it's going to be run for an extended period of time.

Thanks Tim, something like this would work but I don't think they would custom make the size I need and if they did, it would be very expensive.

I have 208V single phase and a boost transformer for 230V for the compressor. I use 208V for my Cerakote oven which gets to 300ºF in an hour and is then on for an hour. I haven't been able to measure how much energy it uses in this time but my gut says about $50 worth. If it's that or even $100 for a bringing 50 gallons of 100ºF (125 water heater, then cooling perhaps) water to 212 and boiling for 20 minutes, I can live with that.

I do have a lot of rock wool left over from the oven build so that would be put to good use.

http://forums.pelicanparts.com/uploa...1698277528.jpg

Good to know, thanks, I would use low pressure compressed air.

This has potential, thank you.

You are talking about an immersion heater, there are several types readily available depending on your tank.
Here's one:
https://www.grainger.com/product/TEMPCO-Sanitizing-Sink-Tank-Immersion-6THU6?opr=DC&analytics=FM:DC

Hey Steve, thanks, I really want to keep indoor fire to an absolute minimum and use a welding blanket any time have heat something with a mapp torch. Even with fire extinguishers everywhere, the last thing I need is a fire.

Have a 200K BTU wok burner for outside use only.

Lunch these days is spinach, tofu and butter so I don't get a food coma. Surprisingly tasty. and healthy.

This is excellent, thank you and I think exactly what I need. Going to put some search time into them.

Here's a helpful formula.
https://sciencing.com/calculate-time-heat-water-8028611.html