What Size Water Heater To Buy Guide

Start with a 20-gallon base and add 10 gallons for every additional person in the home.

Look at the EnergyGuide label on a new unit; its FHR should match or exceed your calculated peak-hour usage. 2. Tankless (On-Demand) Sizing Sizing a New Water Heater | Department of Energy what size water heater to buy

Tank heaters are rated by their storage capacity in gallons and their , which is the total amount of hot water they can deliver in one hour starting with a full tank. Quick Household Guide: 1–2 people: 30–40 gallon tank 2–3 people: 40–50 gallon tank 3–4 people: 50–60 gallon tank 5+ people: 60–80+ gallon tank Start with a 20-gallon base and add 10