Heating

A central heating system is available if you choose to use it, simply connect radiators to your plumbing net and they will use up heating capacity from your boilers in the same way that hot water tanks do. Radiators are limited to 21c and stop heating once that temp is reached, they also retain their heat for a few hours after a boiler is switched off which makes them useful for power cuts as they can keep the chill off until the power comes back on or you get some fires built.

You can add as many radiators and boilers as you need, the red bars that are visible when you select a radiator show the heating capacity, there's also a capacity reading in the inspect panel, half a bar means they are running at 50% of their total capacity, you just need to turn up the power setting on electric boilers or add more gas or log boilers to raise that total capacity on the pipe net. Large radiators have 3x the capacity of small radiators, the log and gas boilers have the same heating capacity as an electric on max power and have no power setting, gas boilers can be piped directly to fuel tanks from Rimefeller and will work without power.

If you want to be efficient, electric and gas boilers can be controlled with a room thermostat, you use it like a normal house thermostat by placing at least 1 in the coldest or most critical part of your base, like a main corridor connecting to bedrooms, or an indoor grow room. You need to enable the thermostat control on a gas or electric boiler and also on hot water tanks, with everything enabled low room temp or low water temp will enable boilers. If you drop the thermostat setting to 20c which is just below the radiators limit, then your boiler should only do very short pulses in mild weather because radiators stay warm after a boiler is switched off and continue to heat the room.