Gas Water Heater Types at Do it Best
Do it Best offers a variety of gas water heaters, including standard gas water heaters, tankless options, and models designed for mobile homes. The table below outlines each type of gas water heater at Do it Best:
Type of Gas Water Heater | Best For | Key Considerations |
Straightforward replacement projects with existing chimney or vertical venting | Uses a storage tank and conventional draft venting; verify vent size, tank capacity, and elevation rating | |
Homes where flexible horizontal or vertical vent routing is needed | Uses an electric blower and requires 120V power; some models support PVC, ABS, or polypropylene vent materials. | |
Homes needing on-demand hot water, space savings, or high efficiency | Requires proper gas-line sizing, venting, and water-flow planning; some models offer indoor or outdoor installation. | |
Approved installations in mobile homes | Must be specifically listed for mobile-home use and installed in the required location. |
Finding the Right Gas Water Heater for Your Home
Gas water heaters are available in natural gas and liquid propane models. A natural gas water heater is a good option for homes already connected to a natural gas line, and liquid propane water heaters are a better option for homes that use LP gas. Fuel type is not interchangeable unless a specific unit is designed and approved for conversion. Always verify the product specifications and local installation requirements before purchasing.
Below are the key considerations to think about before purchasing a gas water heater:
- Fuel source: Confirm whether your home uses natural gas or liquid propane.
- Tank capacity: Choose a size that supports the number of people, bathrooms, and hot-water appliances in your home.
- Venting type: Match the unit to your existing venting or plan for an approved new venting configuration.
- Installation location: Check clearances, access for servicing, drainage, and whether the model is approved for indoor or outdoor installation.
- Electrical needs: Standard tank units may not require household power for operation, but power-vent models require a 120V connection.
- Efficiency and warranty: Compare Energy Star qualifications, Uniform Energy Factor ratings, tank warranties, and parts coverage.
Choosing Gas Water Heater Tank Capacity
One of the most important things to consider when choosing a water heater is tank size. The table below outlines recommendations based on household size and hot water usage:
Household Size | Recommended Tank Capacity | Typical Hot Water Usage |
1–2 People | 40–50 Gallons | One bathroom, light daily hot water use, limited simultaneous demand |
2–3 People | 50–65 Gallons | Moderate hot water use with regular showers, laundry, and dishwasher use |
3–4 People | 65–80 Gallons | Multiple daily showers, frequent laundry, and higher household demand |
5+ People | 80+ Gallons | Large families, multiple bathrooms, and high simultaneous hot water use |
Find the Right Gas Water Heater at Do it Best
The right gas water heater should match your home’s fuel source, venting configuration, available installation space, and daily hot water use. Comparing tank capacity, efficiency, and installation requirements can help you choose a reliable model that supports your household without paying for more capacity than you need.
Shop gas water heaters online today or visit a Do it Best location near you to compare options and receive assistance from one of our home improvement experts.
Gas Water Heater FAQs
Yes. Power-vent models use an electric blower and generally require a 120V electrical connection. Plan for this requirement before selecting a power-vent replacement water heater.
No. Only use a water heater that is specifically approved for manufactured or mobile-home installation. These models have unique installation requirements and are intended for non-occupied areas.
Service life varies based on water quality, usage, installation, and maintenance, but most units last anywhere between 6-12 years. Maintaining and cleaning your water heater according to the manufacturer’s instructions can support longer-lasting performance.