Installing a tankless water heater offers energy efficiency and endless hot water, but many homeowners make costly errors during setup. Key pitfalls include picking the wrong unit size, neglecting proper ventilation, and underestimating electrical or gas requirements. Poor placement, skipping water quality checks, and overlooking local building codes also lead to performance issues or... https://blogosm.com/common-mistakes-to-avoid-during-tankless-water-heater-installation