A common spurtil* often has a rod-like shape so porridge can be stirred without congealing and forming lumps. The low surface area reduces the chances of porridge sticking to the instrument.
The Power Spurtle has a series of small holes near the tip, which are fed by a central tube inside the device, connected to a pressurized supply of boiling water. To make perfect porridge, you first put DRY oatmeal into the pot (or directly into a serving bowl, if making only one portion). Then you push the spurtel* into the dry oats and turn on the hot water supply and start stirring. When the volume of oats & water nears the top of the mixing container, turn the pressure down so that no more water is added - but maintaining a minimum internal pressure to prevent porridge backflow into the spirtle*.
Please DO be careful to turn the water on at a reasonable pressure only AFTER the tip of the spartle* is in the oats - and turn it OFF when withdrawing. Manufacturer will not be responsible for injuries or other messes cause by waving around a rod spurting hot gooey liquids.
--- * valid variant spelling-- a1, Mar 01 2024 [pashute]'s idea Chocolate_20Milk_20Maker [a1, Mar 01 2024] How do you spell SPURTLE? https://en.wikipedia.org/wiki/Spurtle [a1, Mar 01 2024] Could use superheated steam for making a porridgchino.-- pocmloc, Mar 02 2024 Is there an advantage to this model over existing in-faucet heaters?-- normzone, Mar 05 2024 [norm] I cannot answer your question until I have taken a bowl of dry oats into the shower and sprayed the water into the bowl.
<later> the shower jets are too powerful, they splatter the dried oats out of the bowl, and spray them all around the shower cubicle, so I end up with an empty clean bowl, with both myself and the walls all covered with bits of congealing semi-cooked porridge. So I can answer fairly confidently that a specially designed device as proposed is far superior to just using the shower.-- pocmloc, Mar 05 2024 Safer, apparently, than the industrial paint stirring paddle as it doesn't require the cook to put the porridge pot on the floor. Plus the steam thing.-- whatrock, Mar 05 2024 random, halfbakery