Stovetop heat diffusers

My 1 1/2 burner (looks like 3 burners) stove has never spoken low simmer
I bought a cheap heat diffuser and it works very well
No longer need to stand over the pot and no jackhammer needed to clean pot
Color me pleased

Example...https://www.amazon.com/gp/product/B000HM9ZSY/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1