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Controleo3 Reflow Oven Build Kit

Controleo3 Reflow Oven Build Kit

Regular price $319.00 USD
Regular price $319.00 USD Sale price $319.00 USD
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Looking for a high quality reflow oven for your small-scale jobs? You’re better off building it yourself. This kit contains everything you’ll need to build your own top-of-the-line Controleo3 reflow oven. Just follow our comprehensive build guide and your reflows will look perfect in no time.

Controleo3’s unique profile language and automatically-tuned PID algorithm help you write profiles to do anything you need. Precisely follow heating profiles, graph temperature curves, open the oven door, and more.

Notice: This kit does NOT include a toaster oven. It is intended for toaster ovens around 10L in volume. We recommend the Black & Decker TO1760SS. See a full kit parts list here.

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Step-by-Step Build Guide

Follow our comprehensive guide to build your reflow oven in a weekend. Today’s build guide is the result of a decade of feedback from over five thousand hobbyists and small business owners.

Adaptive Controller That Scores Your Oven

Never built a toaster reflow oven? Controleo3 will score your work and tell you how to improve. It’s as easy as clicking a button.

Controleo3’s revolutionary learning mode will spend thirty minutes testing your oven and fine-tuning its PID algorithm. Then it will give you feedback on what you might want to adjust.

Simple Profiles for Any Heating Curve

It’s an oven, after all. It should be able to follow any heating curve, and it should be easy to tell it what you want. Controleo3’s profile language helps you command your oven with step-by-step instructions.

Controleo3’s profile language features commands to hit temperature targets, control fans, open the door, play a tune, and more. Check out the docs to see how you can modify Controleo3 to your needs.

Bake for a Week

We might’ve gone overboard, but it’s for the best. Controleo3’s bake mode supports high-temperature baking for up to 168 hours. Your reflow oven can remove moisture from sensitive parts, dry 3D printer filament, cure resins, and more.

Open-Source Software

You should be able to decide how your hard-earned reflow oven works. With Controleo3’s open-source software, you can tinker to your heart’s content. We’ve made it available for you on GitHub under the permissive MIT license.

Room for Expansion

Small-scale jobs have ever-changing requirements and your oven is designed to meet them. Controleo3’s accessible microcontroller pin and SPI bus let you network with an ESP32, install shiny new hardware, and do literally anything else you can dream up. Check out the back of the Controleo3 PCB to find the solder pads (they’re labeled).

One-Year Warranty

We know you’ll love your Controleo. But for peace of mind, we offer a one-year warranty on all of our products.


Kit Measurements

Kit Dimensions: 13.0” x 10.0” x 2.5”

Kit Weight: 4lbs

Build Guide Oven Details

These specifications are for the oven in the build guide. Your unique oven may vary. See our guide on choosing an oven for more information.

Oven Model: TO1303SB (Not Included)

Oven Dimensions: 10.0” x 15.5” x 8.4”

Oven Volume: 10L

Reflow Area: 8.0” x 10.5” (200mm x 260mm)

Plug Type: Three prong (Type B)

Operating Voltage: 120V

Power Requirements: 1500-1650W (15A circuit required)

  • Top heater measures ~600W
  • Bottom heater measures ~550W
  • Boost heater measures ~400W

Profiles Features

Store up to 28 profiles onboard (1MB flash)

Write over 1000 instructions per profile

Read profiles from full-size SD cards up to 32GB

Controller IO Details

Built-in servo support

  • This is the largest current draw
  • 2A power supply recommended

5V input voltage (USB or screw terminals)

  • USB port is for software updates/debugging
  • USB port cannot power the buzzer, servo, or relays

Up to six relay outputs

  • Provide up to 22mA per output (outputs 1 - 5 only)
  • Connect using screw terminals or solder pads
  • Connect to solid-state relays (SSRs) or mechanical relay modules

Output 6 is a microcontroller pin

  • Can be used for input or output

Controller Component Details

Atmel ATSAMD21J18A-AU microcontroller (Arduino Zero)

  • 32-bit ARM Cortex M0+ core at 48 MHz
  • 256 KB Flash memory
  • 32 KB SRAM
  • Custom boot loader (turns relays off during boot)

4" 480 x 320 color touchscreen display

Buzzer - 80db at 10cm

MAX31856 thermocouple IC w/ 0.25C precision & line-voltage filtering

Reverse polarity protection on power terminals

Current protection on relay outputs



Region Service Est. Price
United States Standard (2-5 Days) Free
United States Expedited (1-3 Days) Free
United States Rush (1-2 Days) $84
International USPS Priority Mail International (6-10 Days) $50 - $77
International USPS Priority Mail Expr. International (1-2 Days) $71 - $90

Shipping rates posted above are estimates. International rates vary depending on destination. Final shipping rates are calculated at checkout.

International customers are responsible for paying any additional duties and taxes. These charges are determined by the customs authorities of the destination country and are beyond our control.

*See our Shipping Policy for more information.

Customer Reviews

Based on 11 reviews
Corry Lazarowitz
Buy the recommended oven!

Mine works perfectly, I used the mainstays oven for $20. The shape is really not conducive. I needed to buy some more insulation, and really get nothing for it.

That said, the oven works perfectly and got a 90% score, so their methods, controller, etc are fantastic. Now I can do some small batch reflows. I’m pretty happy about that. I’ve run one board, and the oven worked great. (The solder paste stencil, or rather the human technique using the solder paste stencil on the other hand…)

Randy Cain
You'll love it when it's done!

This oven is the real deal! Is it easy to assemble? No, it's not. But the operation of the oven gives me great confidence that I'll be successful reflow soldering the nearly 250 2" x 3" boards that I'm putting together.

The parts in the kit are very good. I used my own metric screws with hex allen heads wherever I could ... my personal choice. But everything fits, everything arrived in perfect condition, everything that needed to be there, was there.

Although I found the instructions less than clear, the support from Whizoo could not have been better! When I made a configuration error last weekend, an email to the support address brought me a solution in no time at all.

All in all, I recommend this kit for skilled electronics DIYers: anyone looking to make their own boards probably has the skills, tools and patience needed.

Christopher Jones
Fun to build. Worked perfectly first time out.

I used a fancy 4 element DeLonghi toaster I got for $10 from a thrift store. There were some difficulties getting it all together but I got good values from he learning cycle and the first board I did came out perfect. The next run was a full load of 5 boards that were 2.5” X 3.5”. I had some problems with solder paste and the stencil but the final results were perfect again.

Mark S.
The oven I always wanted

I have spent years thinking about buying an oven, suffering through soldering SMD parts with an iron or a hot air gun. I should have made the jump long ago.

This kit is pricey, but the results I have seen are far better than what has been reported with other ovens. Sometimes it is better to do the job yourself and you can make it just the way you want.

I have made a number of radio kits over the years, and I have to say that the customer service on this one was far better than any kit I have ever built. I had some questions about the instructions, and I fired off a question, expecting to wait the typical day for turn around. Every time I did this I got the answer within an hour. Customer service never sleeps.

I am very satisfied with the results, and I now feel free to attack any SMD project without worrying about soldering.

Connor Huffine
Involved, but fun!

The kit is complete, I didn't need any extra parts. There are a few tools you'll need such as a crimper, strippers, scissors etc, but nothing an electrical hobbyist won't have handy. I highly recommend a once-around and a file to clean up the sheet metal edges on the parts and tray.
Shipping was wicked fast. I ordered on Thursday and received it Monday!
This took me maybe eight hours of labor to complete over three evenings, and I only cut myself on the oven twice!
Read the instructions carefully and through at least once. The wiring is intuitive, but if you just wing it you might find that your wires are in the way when you go to insulate. Measure twice and cut once on the copper and tape, and this project should be a satisfying project!