To dispose of pull up diapers simply roll them up like a diaper and place them in a trash bag or trash can or simply throw the pull up diapers in the trash can or trash bag and dispose of them that way.
If you have no trash service at your home and you live in the country then you could burn the pull up diapers in a burn pit or burn barrel.
You could also burn the pull up diapers or any other diapers you have in a wood stove to dispose of them as well.
Diapers are not fireproof and if the diaper is dry the diaper will burn.
A diaper is made of plastic and papers and SAP.
The plastic and paper or cloth backing will burn if exposed to flame so your child being near a fire could get burned if the diaper catches on fire.
Also disposable diapers can be burned if the fire is hot enough.
It's the wetness in the diapers that make the diapers hard to burn but when dry the diapers will burn and with enough heat the pee and moisture will be evaporated from the diaper which then allows the diapers to burn.
Pampers diapers can be burned.
Although it takes a few tries to get the pampers diapers to burn they will with enough heat burn.
When pampers are wet it makes it harder for the diapers to burn as the wetness in the pampers and wet sap will usually cause the fire if too small to go out.
But if you have a good hot fire going and the pampers diapers are beneath that fire then the diapers will eventually burn.
I've burned pampers and other diapers in my burn pit where I live in the country.
Sometimes there's bits of the pampers or other disposable diapers left after the fire but with a second fire or more stuff thrown on top of it to burn the diapers eventually turn to ash.
If you have a wood stove then putting a pampers diaper or other disposable diaper in it one at a time or a few at a time with a hot enough fire burn the diapers too.
I've done this myself in our wood stove.
While the wood stove is burning I put one or two pampers diapers into the wood stove and allow them to burn fully and with the heat of the stove being so hot the pampers and other diapers burned up with no issue.
Diapers being wet is what makes them not burn properly but the diaper itself once the moisture is gone will burn.