Bowa wa pulasitiki wakuda wowonjezera kutentha adapangidwa mwapadera kuti azilima bowa.Mtundu uwu wa wowonjezera kutentha nthawi zambiri umaphatikizidwa ndi machitidwe a shading kuti apereke malo amdima a bowa.Makasitomala amasankhanso makina ena othandizira monga zoziziritsira, zotenthetsera, zowunikira, ndi makina olowera mpweya malinga ndi zomwe amafuna.