Levi is installing a heat pump. He installed the pipes two feet deep. He then installed the unit within the house and installed a
thermostat inside to regulate the heat pump. Lastly, he installed a furnace in the basement
Which best describes Levi's errors?
The pipes need to be at least six feet deep to avoid the freezing ground, and he did not need to install a furnace.
He did not need to install a furnace, and pipes are not necessary in the installation and function of a heat pump.
Thermostats should be installed directly to the outside unit, and the pipes need to be at least six feet deep to avoid the
freezing ground.
Pipes are not necessary in the installation and function of a heat pump, and thermostats should be installed directly to the
outside unit.
Suomi

the answer is b, have negligible mass

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hope this !