The main types include conventional storage tanks, tankless water heaters, heat pump water heaters, and solar water heaters, each with distinct energy and space requirements.

Size depends on household size and hot water usage; a professional can calculate this to ensure you don’t experience shortages or excess energy costs.

Gas water heaters use a gas burner and require venting, while electric heaters use heating elements and are typically easier and less costly to install.

Installation usually takes 2-4 hours for a conventional tank, while tankless models may take longer due to additional plumbing and electrical requirements.

Yes, tankless units generally cost more to install due to their complex plumbing and electrical needs, while conventional tanks are simpler and less expensive.

Many localities require a permit for hot water tank installation to ensure it meets safety codes; a professional installer will typically handle this.

Signs include age (10+ years), rust or corrosion, leaks, inconsistent water temperature, or higher energy bills, indicating it may be time for a replacement.

Tankless models provide on-demand hot water, are energy-efficient, and save space, although they have higher upfront costs.

Due to safety codes, plumbing, and electrical requirements, it’s recommended to hire a licensed professional for installation.

Regular maintenance, water quality, temperature settings, and type (gas vs. electric) all impact how long your hot water tank will last.