What is the maximum EU per tick you can generate with a 6 Chambered Nuclear Reactor using only a Mark I setup?
Sophia Dalton
Published Jul 19, 2026
What is the most efficient setup for a 6 Chambered Reactor, and have it NEVER overheat.
Ideally I would not want the cooling components to meltdown either.
Please note the setup is for a SIX CHAMBERED REACTOR not six reactors.
53 Answers
After a number of hours that I'd rather not disclose, I put this together;
Note, the single Component Heat Exchanger is important. Active output is 420 EU/t, and it will run for 2 hours 46 minutes and 40 seconds, totaling at 84 million EU.
9The design shown below produces a signifigant 320 eu\t but this is the design given at the wiki. I'm sure there must be a better one.
Note that efficiency (EU/rod) and throughout (EU/t) are not related. A high throughput reactor is not necessarily efficient.
This answer considers efficiency as total EU/rod, which is what the reactor planner app defines as efficiency.
One very efficient design is this:
erp=AudaVNFQX9163ABic6PdxKIr3OwoiQ+toWI665/DJIi0hDTnQka+FiCVYeL96RQB
It has an efficiency factor of 7, or 14mEU / rod (throughput: 140 EU/t). (*)
In comparison,
- the reactor described in this answer has an efficiency factor of 3, or 6mEU / rod,
erp=ALnWlTRUJODL7ZAYrnsf8uA1WVN+yeK6PmbdRxXRnNrJh+YZfH3jvU17wQa2ZQ68AQ== - the reactor described in this answer has an efficiency factor of 4, or 8mEU / rod,
erp=Bc60qaKgv7r2Fa/BvWsFmfkgymWh0iBhhdK96oyrNV1x+Tku3S42XKJbutYr+E48AQ==
In general, reflectors increase efficiency, cells increase throughout. Both increase heat.
(*) It does require 16 iridium, which is a pain to get
Note that this is can be further simplified in terms of resources required as follows: erp=AXOtKmioL/A1q7Cqc3DRQZUfu1/3uVGMlrNLEDNT/1Irvjy76Pn+56FPmE26pIQB