Unless you have a constant heat source (flowing groundwater), you need to pump heat back into the ground in summer or the system will “freeze up” after a few years. If the heat battery of the ground isn’t being recharged, it’ll eventually die.
Yup we had that problem once at one large shop once. The system was still working but it was really struggling one winter. They were previously using heat only (floor heat), so that spring they installed a few radiators with fans for cooling to push more heat back into the ground. Worked great ever since.
Unless you have a constant heat source (flowing groundwater), you need to pump heat back into the ground in summer or the system will “freeze up” after a few years. If the heat battery of the ground isn’t being recharged, it’ll eventually die.
Yup we had that problem once at one large shop once. The system was still working but it was really struggling one winter. They were previously using heat only (floor heat), so that spring they installed a few radiators with fans for cooling to push more heat back into the ground. Worked great ever since.
Thermal mass storage system in a way.