Use the RimWorld temperature calculator to plan heating and cooling for your biome — how many heaters a tundra base needs, how many coolers a desert freezer needs — built for the current 1.6 / Odyssey version.
Temperature & Climate Calculator
Temperature & Climate Calculator
Winter temp gap to fix: —
Devices needed (approx): —
Tip: —
Community-consensus values for RimWorld 1.6. Real temps vary by map size, roofs and seasons — these are planning estimates.
Climate Strategy
Cold biomes (tundra, ice sheet): build heaters early, keep rooms compact and insulated with double walls. Hot biomes (desert, tropical): coolers are essential for food storage and bedrooms. A freezer at -10°C is non-negotiable in every biome once you have a food surplus.
RimWorld Temperature FAQ
Why is my freezer not cold enough?
Check power, wall insulation (double walls), and roof coverage — uncovered rooms lose temperature fast.
How many heaters does a large base need?
Roughly one industrial heater per large room in cold biomes; compact rooms need fewer.
Size your power grid with the Power Load Calculator.