What size water heater do I need for my Twin Falls home?

A 40-gallon tank works for most 1-3 person households. Families of 4+ typically need a 50-gallon or larger. We assess your hot water usage patterns to recommend the right size.

How long does a water heater installation take?

A standard tank water heater replacement typically takes 2-4 hours, including removal of the old unit and testing the new one.

Do you handle permits for water heater installation in Idaho?

Yes, we ensure all installations meet Idaho plumbing code requirements and handle any necessary permit coordination.

Water Heater Installation

When it's time for a new water heater, Doulos Plumbing handles the full installation — removal of the old unit, proper sizing for your household, code-compliant installation with correct venting, and all necessary connections. We install standard tank water heaters, high-efficiency models, and can set up expansion tanks and pressure relief valves. We'll help you choose the right size and efficiency level for your home.