Suitable heat sources for the piglet nest include:
Wall heaters (Figs. 54 and 55)
Radiant heaters → Infrared heaters (Fig. 56)
Underfloor heating/heating panels (hot water or electric) (Fig. 57)
Figure 54:
Piglet nest with a lid, enclosed side walls, bedding and a heated wall (Image: Netzwerk Fokus Tierwohl, North Rhine-Westphalia Chamber of Agriculture)
Figure 55:
Heated wall of the piglet nest shown in Fig. 54 (Image: Netzwerk Fokus Tierwohl, North Rhine-Westphalia Chamber of Agriculture)
Figure 56:
Piglet hutch with a lid, underfloor heating and a red-light lamp in the lid as a heat source (Image: Netzwerk Fokus Tierwohl, North Rhine-Westphalia Chamber of Agriculture)