Brinsea Octagon 20 Advance Egg Incubator Review

Are you looking to buy an egg incubator? Or are you just searching for more information on the Brinsea Octagon 20 Advance? Either way, you’ve come to the right place.┬áIf you’re looking for a comparison of the best egg incubators┬áincluding this one, we got you covered as well.

Brinsea Octagon 20 Advance Egg Incubator

Brinsea has been one of the best quality egg incubator producers since 1976. What sets them apart is their strong focus on innovation. In the last forty years they have gotten more patents than the rest of the small incubator industry combined. Their brand promises strong, efficient, and highly effective quality products, so let’s put that to the test.

The Brinsea Octagon 20 Advance Egg Incubator (quite a mouthful) is build upon the earlier Octagon 20s, and has some improvements over the older designs. In this review I will only consider the latest edition, which can be recognized by the term “advance” which got added to its full product name.

Brinsea Octagon 20 capacity

Brinsea Octagon 20 Advance capacity

The Brinsea Octagon 20 can incubate up to 24 hen eggs simultaneously. One of the more unique features is that the dividers are fully adjustable, allowing for a wide variety of egg sizes in the Brinsea Octagon 20. Although larger egg sizes do fit, it might get crowded once you get to the lockdown phase. Due to this some people prefer to hatch just 20-22 hen eggs at a time. This does depend a bit on egg sizes and personal preferences. The maximum capacity for all common eggs has been graphed below.

Egg typeMaximum Capacity

Brinsea Octagon 20 temperature

I got zero complaints about the temperature control system of the Brinsea Octagon 20 Advance Egg Incubator. Besides displaying the temperature accurately, the system controls the temperature perfectly. It includes high and low temperature alarms for the odd chance that something might go wrong anyways. An air circulation fan is included, as well as a cooling feature, which can optionally be used to improve hatch rates for certain eggs according to this research.

Brinsea Octagon 20 humidity

Humidity is provided by the two water reservoirs and generally doesn’t need any manual action other than refilling the reservoir every few days. The display system on top shows the current humidity level accurately. Depending on the external humidity and temperature, the water reservoir might need to be refilled more regularly.

Brinsea Octagon 20 Advance Humidity Pump

Brinsea also sells a custom humidity pump specific for the Octagon 20 Advance separately. The humidity pump goes by the name of Octagon 20 ADVANCE Incubator Humidity Pump (Amazon link), and is fully optional. The humidity pump basically allows you to have a larger water reservoir, and a fully automatic humidity control system, removing the need to check on the Brinsea Octagon 20 entirely. If you live in an area where the water reservoir empties quickly, or are too busy to check on the humidity levels every so often, the humidity pump might be perfect for you.


As mentioned before, the temperature control is fully automated. Humidity levels usually do not require much interference, but to be truly automatic and stand alone the Humidity Pump can be bought. Aside from those features, egg turning and cooling periods can be relatively easily programmed as well. Ultimately, the only manual action required without a humidity pump is to check on the water reservoir every so often. If you do have a humidity pump all you need to do is to wait three weeks. Which makes the Octagon 20 ideal for when you have a busy schedule.

Brinsea Octagon 20 Advance control frame

Brinsea Octagon 20 power consumption

The Octagon 20 Advance uses a 115v 60Hz power supply, takes a maximum of 45 Watts and averages around 25 Watts. Overall the power consumption is relatively efficient for an egg incubator due to the strongly insulated cabinet.

Brinsea Octagon 20 design

The construction is quite robust, and can probably take a bit of abuse without any issues. It is almost entirely made of ABS, which results in high impact resistance, toughness and heat insulation. The control panel is clear and has all the functionality needed. The capacity is decent, although it may get a bit crowded if all eggs hatch at maximum capacity. One potential downside is that the eggs are only all clearly visible when you look at the Octagon 20 egg incubator from the side. If you place the incubator on the ground in a corner, the control panel will be in the way of some of the eggs.

Key spec overview

  • Capacity: 24 hen eggs. duck, geese, quail, pheasant, parrot eggs etc. do all fit
  • Size: 16 x 9.5 x 12 inch
  • Weight: 9 pounds
  • Humidity control: excellent
  • Temperature control: excellent, including automatic regular cooling option
  • Power consumption: 25 watt average, 45 watt peak
  • Material: robust ABS


Overall the Octagon 20 Advance is a very solid incubator, and possibly the best of its size. That level of quality comes with a price, as the egg incubator tends to be a bit more expensive than similarly sized incubators of other brands. However, with consistent 90%+ hatch rates the Brinsea Octagon 20 does perform very well. With capacity during lockdown, and the occasional water reservoir refill being the only downsides, the Brinsea Octagon 20 is a real quality product.

I would recommend you to buy the Octagon 20 if you are looking to buy an automatic incubator with high hatch rates that will last for years. If you are looking for an egg incubator to use only occasionally, the Best Choice Products 48 Digital and the Farm Innovators Model 2100 might be a bit cheaper. If you need to incubate no more than 7 eggs at a time, it might be worth checking out my Brinsea Mini Incubator Review. Conversely, if you might need more capacity than 24 chicken eggs equivalent, the Brinsea Octagon 40 Advance is an excellent choice.

Overall, if you are looking for the best 20 egg incubator there is, go get the Brinsea Octagon 20 Advance (Amazon link)!

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