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Off-Grid Cooking with the Amazing HERC Tea Light Oven

Avatar for Gaye Levy Gaye Levy  |  Updated: November 24, 2020
Off-Grid Cooking with the Amazing HERC Tea Light Oven

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One of the challenges during a power outage is cooking meals.  While there are many options, most require cooking outdoors using stove-type methods such as a rocket stove, BBQ grill, fire pit or camp stove.  These methods work great, especially if they are coupled with a cast iron skillet or Dutch oven.

The problem, however, is that we can not predict or time when the power will go out.  Nor can we predetermine how long the grid will be down; it may be hours or it may be days or even weeks.  Not only that, what if the power goes out for a week during the coldest part of the year, with 10 inches of snow on the ground and a howling wind?  Cooking outdoors under those conditions is nearly impossible.  In addition, unless you are using biomass (twigs and leaves), there are fuel considerations when it comes to availability and cost.

HERC - Off Grid Cooking

Regardless of the drama, wouldn’t it be nice to have cooking source that you can safely use indoors, rain or shine, with just inexpensive tea lights as a fuel source?

Today I am thrilled to introduce you to the amazing HERC Tea Light Oven.  Not only that, one of these fabulous ovens has been reserved for a lucky (very lucky) Backdoor Survival reader.  More about that in a moment.

First, Some Background

I first spoke to Kris Johnson, the developer of the HERC oven, a couple of years ago when he requested some feedback on the Titan Water rack system.  We chatted back and forth by phone a number of times and kept in touch by email.  Last Fall, Kris called and told me about a new, indoor oven that he was working on – an oven that was powered solely by commonly available tea lights.

He called it the HERC which stands for Home Emergency Radiant Cooking.  What makes the HERC special?  Through design and the use of certain materials in manufacturing, HERC marries heat generated by convection with heat created by conduction and Infrared radiation. It is the combination of IR and convection that allows the HERC to get hot and stay hot while using only tea lights.

Practical Use of the HERC Oven

Whenever I do a review, I have some decisions to make.  Do I talk about the technical aspects or do I simply focus on usability in a survival situation? Today I have decided to focus mostly on the practical usage of the HERC oven because, to be honest, my interest throughout the testing was to see how well the HERC performed cooking real food.  The other stuff was secondary.

For the past week, the HERC was my only cooking source.  My fancy kitchen range was off limits.  Here is what I cooked along with a few notes.

HERC Tri Tip Before Cooking

HERC Trip Tip is Done Cooking

HERC Trip Tip After Cooking

3.5 pound Tri-Tip Roast:  Yes, I must admit it took guts to cook a $25 roast in the HERC oven.  Although it took longer than I expected (3 hours), this was the most tender tri-tip I have ever prepared.  The real surprise, though, was that there was no grease or juice splatter at all.  The HERC oven stayed pristinely clean and there was no smoking either.  Heck, when I cook a tri-tip in my electric oven, I usually have a big mess after the fact.  And sometimes, the smoke alarms go off.  Really.

HERC - Classic Chicken & Rice

Chicken and Rice Casserole:  This was the old mushroom soup and rice standard that we all remember as kids.

HERC Rice & Leftover Tri Tip

Oven Rice:  If the SHTF, we will be eating a lot of rice because it is filling, has calories for energy and stores well.  I made it in the HERC using a ratio of 2 cups rice to 3 cups water.  I added bullion cubes and herbs from my food storage, covered the pan and let the rice cook for 90 minutes.  With warmed over tri-tip (30 minutes in foil), this was our evening meal.

HERC Making Brownies

Brownies:  This pan of brownies took 90 minutes to bake instead of the conventional 30, but they too were perfection.  You can not tell from the picture but the cooking was even unlike a standard, electric oven where the edges tend to overcook and the center stays mushy.  I used a boxed mix that was 5 years old and well beyond its printed expiration date.  Moral of the story?  Packaged food will last a lot longer than most expiration dates will indicate, especially if stored in a cool, dry location.

Everything I cooked in the HERC emitted the delicious and comforting aroma of well prepared food.  As a matter of fact, the brownies baking were a huge distraction from my work – so much so I had to take a coffee break so I could savor the smell and admire the baking process.  (The HERC has a nice viewing window so that you can peek inside to see what is going on.)

Basic Instructions for Using the HERC

The set up of the HERC was pretty easy.  Shelly did it in about 30 minutes but said the next time he could do it in 10.  All you need to do to use the oven is load up each of the two tea light trays with 10 tea lights and slide them under the oven.  As you can see, we set the oven on top of cutting boards sitting on our counter but I don’t think that was really necessary.

HERC - Lighting the Tea Lights

You set your food in the oven by opening the top lid and placing your pan inside.  There are quarry tiles on both the oven floor and lid so be mindful of the heat if you happen to touch them.  I used Ove Gloves just to be safe.  By the way, one surprising aspect of the oven was that is accommodated a 9 x 13 pan with no problem.  Good to know and, as a matter of fact, the specs indicate that the HERC will accommodate an 11 x 15 pan.

Cooking Tips – Do’s and Don’ts

1.  Preheat for 20 to 30 minutes.  That is sufficient.  For the tri tip, I made the mistake of using a standard oven thermometer to gauge the pre-heat temperature.  It took an hour to register 350~ but then started to fluctuate.  Finally, I ignored it and simply allowed an internal meat thermometer to tell me when the meat was done.  I highly recommend getting one of these probe type external thermometers.  I use mine with my barbeque and smoker – indispensible!

2.  Allow plenty of time.  A pan of brownies that would take 30 minutes in a conventional oven, took 90.  Be patient.  This is a slow, but even, cook process.

3.  Stock up on tea lights!  Each “load” takes 20 lights and although I reused some that were only half burned, in a grid down you will go through a lot candles.  At a cost of 5 to 10 cents each, there is no reason not to have a few hundred or even a thousand or more on hand.

4.  Be mindful that the interior gets hot as does the lid.  Use oven mitts, ove gloves, or some other type of protection to keep your fingers from getting scorched.

5.  It goes without saying that you should never leave burning candles unattended.  Ever.

A Word About Tea Lights

Tea lights are made in two very different ways. They are either poured into the aluminum cups from a liquefied state OR they are pressed out of a sheet of wax, looking like little hockey pucks and then placed into aluminum cups.  Each type burns differently, with the hockey pucks burning hotter than the poured type.  It is easy to identify which method was used and in doing so you will have a good idea whether your food will cook faster or slower with “faster” being relative.

The poured candles (cooler candles) look creamy and are attached to the cup because of solidifying in the cup. The hockey pucks (hotter candles) look granular and are not attached to the aluminum cup.  The other difference is that some tea lights are slightly taller than others which means they burn longer.

Interesting enough, I checked and my bag of IKEA tea lights (which should also be called dirt-cheap tea lights) were of the hockey puck type. Note that I did not use them for this review so I can not vouch for their performance.

Whatever type of tea lights you have, my suggestion is to cook with them now while you have the luxury of time on your side. Try to purchase both types so that you can choose the type you prefer.  Store a bunch of the preferred type (see #3 above) however learn to cook with both types because in a pinch you might only have access to one kind or the other.

The Giveaway!

Update:  Sorry – this giveaway has ended.

Ah! Now here is the part you have been waiting for.  Titan Readywater has reserved one HERC XXL Tea Light Candle Oven for a lucky Backdoor Survival reader.  To enter the giveaway, all you need to do is respond to the following question in the comments area below.  This is a fun one.

From time to time, everyone makes a mistake.
What has been your biggest prepping mistake or goof?

I realize this question is not food or cooking related but truth be told, I have made my share of mistakes and hope to learn from yours. As a matter of fact, we all can learn from them.

The deadline for your entry is 6:00 PM Pacific on Thursday, April 3rd.  A winner will be selected at random and will be notified by email as well as in an announcement in the Sunday Survival Buzz.  The winner will have 48 hours to claim their prize or another winner will be selected.

Note: If you are reading this article in your email client, you must go to the Backdoor Survival website to enter this giveaway in the comments area at the bottom of the article.  As with all BDS giveaways, this giveaway is only open to visitors to the website.  Email and Facebook entries do not count.

The Final Word

My HERC oven is still sitting in my kitchen; I am not done with it.  I plan to continue using it so that I become more familiar with cooking using tea light candles.  I also want to experiment with different brands and types of tea lights.  Even more important, I want to bake some bread and perhaps even a pizza using some of my food storage items as toppings.  I will report the results in a future Sunday Survival Buzz.

Before closing, I would like to thank Kris at Titan Readywater for making this giveaway possible.  He has indicated that if you love the idea of the HERC and make a purchase before the giveaway is over, he will send a refund (or a second oven) if you are the winner.  Now how cool is that?

Backdoor Survival is blessed to have so many friends that are willing to share their products with you and for that, I am grateful.  The reason, I believe, is because Backdoor Survival readers are the best common sense Prepper’s on the planet.  Good luck, everyone!

Enjoy your next adventure through common sense and thoughtful preparation!

Click Here To Vote For Me at Top Prepper Websites!

If you have not done so already, please be sure to like Facebook which is updated every time there is an awesome new article, news byte, or link to a free survival, prepping or homesteading book on Amazon.  You can also follow Backdoor Survival on Twitter, Pinterest, and Google+ and purchase my book, The Prepper’s Guide to Food Storage from Amazon.

Spotlight:  The HERC XXL Tea Light Oven!  If you love the idea of the HERC and want to make a purchase before the giveaway is over, Titan Readywater will send you a refund (or a second oven) if you are the winner!

HERC Tea Light Oven

Bargain Bin:  Below you will find a link to the HERC and to items related to cooking with the HERC Tea Light Oven.

Unscented Tea Lights 100/Pkg-White: Prices vary widely with tea lights, just be mindful of the shipping cost (if any) and the burn time (if states).  The following tea lights have a stated burn time of 4-5 hours: Richland® Tealight Candles White Unscented Set of 125.

Taylor Digital Cooking Thermometer/Timer:  This is the thermometer/probe that I use.  Works great with the HERC in that it remotely displays the food’s temperature as well as the elapsed time.

Ove’ Glove Hot Surface Handler, Pack of 2: I would not be without these.  They are light weight and absolutely protect your hands and wrists from oven burns.  I put mine in the washer and dryer with no problem.  I know see there are some “knock-off” brands that might be worth trying, including these:  Oven Glove-Made of Nomex Heat resistant Fiber.

Lodge Double Dutch Oven and Casserole with Skillet Cover, 5-Quart: This cast iron Dutch oven will make a perfect addition to your off-grid cooking supplies.

Wilton 9 by 9 Inch Covered Baking Pan: This is the type of pan I used in my HERC.  I also have a similar 9 x 13 pan.

Emergency Essential Corn Bread 013Shop the Emergency Essentials Monthly Specials

I really love the Provident Pantry Corn Muffin Mix which I cooked up as corn bread in my cast iron skillet.  Oh my gosh – it was better than anything boxed that I have ever purchased and as good as home made.  The best part is that all I had to add was water!  Same with the Buttermilk Biscuit Mix.

These are just two of the food storage items that you can purchase at Emergency Essentials.  And if you need some recipes?  Go to the Food Storage Recipes page of Emergency Essentials for lots of creative (and free) ideas for using the good you have on hand.

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250 Responses to “Off-Grid Cooking with the Amazing HERC Tea Light Oven”

  1. Not reading the instructions all the way thru because I was sure that I knew what else had to be done to finish a product I wanted. There was one critical part I missed and I wasted a day and almost blew myself up in the process. Now I read everything twice before starting something I have never built before.

  2. Our biggest mistake is that we have not run ourselves through a simulated grid down experience for a period of time. I believe that it would be very enlightening to go through such a test run. We have some gear, equipment, food stores, etc. that we have never used, so we could become acquainted with those things. It would also be very useful to find out any areas for which we have not prepared adequately.

  3. My biggest mistake was waxing cheese to store. It seemed to be working so well that I did several pounds only to find a few months later that the wax had cracked and the cheese was all rotten.

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