When it’s time to upgrade or replace your water heater, the number of choices can feel overwhelming. Tank or tankless? Gas or electric? What size do you need? At Red Rock Plumbing, we help homeowners every day who are asking the same questions. Choosing the right unit is about more than just picking something that heats water—it’s about long-term efficiency, comfort, and cost savings.
Here’s how to find the best water heater for St. George homes and how to choose the right size water heater in St. George for your specific needs.
1. Determine Your Household’s Hot Water Needs
The first step in choosing a new water heater is understanding how much hot water your household uses daily. A family of four, for example, likely uses significantly more hot water than a single occupant or a couple. Showers, laundry, dishes, and handwashing all add up.
A general guide:
- 1–2 people: 30–40 gallon tank
- 3–4 people: 40–50 gallon tank
- 5 or more: 50–80 gallon tank
If your home has a high demand for hot water or multiple bathrooms, you might consider a tankless system that heats water on demand. This is often the best water heater for St. George homes with larger families or greater usage patterns.
2. Decide Between Tank and Tankless
Both traditional and tankless water heaters offer unique benefits:
Tank Water Heaters
- Store hot water in a tank (30–80 gallons)
- More affordable upfront
- Simple to install and replace
- Ideal for households with predictable water usage
Tankless Water Heaters
- Heat water only when you need it
- Energy-efficient with lower long-term operating costs
- Provide continuous hot water (no running out!)
- Take up less space and have longer lifespans
If you’re focused on energy efficiency, a tankless model might be the best water heater for St. George homes trying to reduce energy bills and improve long-term value.
3. Consider Energy Source and Efficiency
In St. George, most homes use either natural gas or electricity to power their water heaters. Gas models typically offer faster heating and are more cost-effective if you already have a gas line. Electric models, on the other hand, are easier to install and require less maintenance.
Regardless of type, always check the energy efficiency rating (Energy Factor or Uniform Energy Factor). Higher-rated units will save you more over time.
4. Choose the Right Size Water Heater
Sizing is critical. A water heater that’s too small won’t keep up with your needs, while one that’s too large wastes energy and money. To choose the right size water heater in St. George, consider both your household size and peak usage times.
For example, if your family tends to shower back-to-back in the mornings or run the dishwasher and laundry simultaneously, you’ll want a unit that can handle those demands.
Our team at Red Rock Plumbing can perform a usage assessment to recommend the perfect fit for your household.
5. Factor in Installation and Maintenance
Before making a final decision, consider installation requirements. Some homes may need updates to accommodate a larger tank or a tankless model. Also, think about long-term maintenance needs and warranty coverage.
At Red Rock Plumbing, we make the installation process smooth and stress-free. From helping you choose the right system to expert setup, we’re your local St. George water heater specialists.
Let Red Rock Plumbing Help You Decide
Whether you’re replacing a broken unit or upgrading to something more efficient, Red Rock Plumbing is here to help you choose the best water heater for St. George homes. We’ll assess your needs, explain your options, and help you choose the right size water heater in St. George, so you always have reliable hot water when you need it.
Visit Red Rock Plumbing to learn more or contact us to schedule a consultation. We also offer a full range of plumbing services in St. George to keep your home running efficiently all year long.