In texas, it would be extremely easy to clean up a bedbug infestation in the summer.
On one of the days when it’s already 110*, get a hotel room and clear out all of your kids and pets. Close up the doors and windows and crank the heater all the way up.
Go to a hotel for two days.
Come home, turn on the AC and cool the place down.
Enjoy.
Bedbugs can’t survive in anything hotter than 120* for more than a couple of hours. 140* kills then within minutes.
The reason you let it sit for a couple of days is to make sure all the nooks and crannies are heated up. Don’t let them have a place to hide.
You are either going to have to get a high temperature thermostat that lets you set it at 120 or you are going to just have to bypass it and risk burning your house down.
You are also going to have to make sure there are no bugs or eggs in any of the stuff you take to the motel.
You are also going to have to make sure there are no bugs or eggs in any of the stuff you bring back from the (likely) infested motel.