Using drain pans to solve tankless water heater leak problems

When a tankless water heater leaks, the water runs out of the bottom of the unit. Much of it follows

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Why Is My Tankless Water Heater Leaking - Avalon Home Inspections

How to Install a Water Heater Drain Pan

Water heater pans and why homeowners don't have them. - Family Plumbing and Heating

Why Is My Tankless Water Heater Leaking - Avalon Home Inspections

How can I install a drain pan under my existing water heater? - Home Improvement Stack Exchange

Why is my water heater leaking from the bottom?

Rheem 6 ft. Plastic Silicone Condensate Drain Tube for Mid Efficiency Indoor Tankless Gas Water Heaters RTG20150A - The Home Depot