The two numbers that decide the job
Almost every bad water-heater purchase is a sizing error or a cost surprise — usually both. This hub works the math in the open: first-hour ratings and recovery rates for tanks, temperature-rise flow charts for tankless, and installed-cost ranges built from real installer quotes, line by line, so you can see exactly what a fair price is made of.
Inside this hub
- First-hour rating: the only tank size number that matters
- What installation really costs — unit, labor, permit, and the padded line items
- Replacement vs. new installation: why the second quote is never the same
- The 2029 DOE efficiency rule and what it does to sizes and prices
Bring a quote to the cost guide and check it line by line before you sign.