This article compares gas-powered and electric 50 gallon water heater options to help you pick the right system for your family size and daily hot water needs. Gas models typically shine with faster recovery and lower operating costs in busy households, while electric and hybrid units can offer easier installation and high efficiency in smaller spaces. The best choice depends on your home’s utility setup, climate, and hot water demand. The following selections highlight strong 50 gallon-capacity candidates across gas, tankless, electric, and hybrid categories to suit different buyer profiles.
| Product | Type | Best For |
|---|---|---|
| Rheem RTG Series 7.0 GPM Natural Gas Tankless Indoor | Gas Tankless | Large households needing endless hot water with space savings indoors |
| Rheem RTG Series 7.0 GPM Liquid Propane Tankless Outdoor | Gas Tankless | Homes with outdoor installation and LP supply |
| Rheem RTG Series 8.4 GPM Natural Gas Tankless Outdoor | Gas Tankless | Higher flow with simultaneous showers outdoors |
| Xyloz 120V 1500W Immersion Electric Heater | Electric Immersion | Small spaces, portable heating where immersion is viable |
| Senville Hybrid Heat Pump Electric Water Heater, 50 Gallon | Hybrid Electric | Energy savings with electric heat pump technology |
Rheem RTG Natural Gas Tankless Indoor (7.0 GPM)
This gas-powered tankless model delivers on-demand hot water for whole-house use with 7.0 GPM at a 35°F rise, equating to about two to three simultaneous showers. It features a 160,000 BTU/hr output and an energy-efficient non-condensing design with a 0.82 Uniform Energy Factor (UEF). Best for: larger households prioritizing continuous hot water with compact indoor installation. Limitation: indoor venting requirements necessitate proper installation by a qualified pro.
Rheem RTG LP Gas Tankless Outdoor (7.0 GPM)
This outdoor LP gas tankless unit provides the same 7.0 GPM and 160,000 BTU/hr as its indoor sibling but is designed for outdoor installation, eliminating indoor venting considerations. Best for: homes with LP supply and space where outdoor mounting is feasible. Limitation: outdoor exposure requires weatherproofing and professional mounting for best performance.
Rheem RTG Outdoor Natural Gas Tankless (8.4 GPM)
Providing a higher flow of 8.4 GPM at 35°F rise, this outdoor outdoor unit supports 3–4 simultaneous showers with 180,000 BTU/hr. It’s ideal for larger homes or families with heavy simultaneous hot water use. Best for: extreme multi-user households seeking robust on-demand performance. Limitation: outdoor installation may require additional venting considerations and protective housing.
Xyloz 120V 1500W Immersion Electric Heater
This electric immersion heater offers 1500W of rapid heating to heat small volumes of water quickly. Best for: supplemental hot water, portable heating, or use in tanks, tubs, or small pools where immersion heating is practical. Limitation: not a full home replacement for traditional tank-size demands; best used as a supplemental source or in constrained spaces.
Senville Hybrid 50 Gallon Electric Water Heater
The Senville hybrid model combines heat pump technology with electric elements to deliver substantial energy savings, boasting a 3.75 UEF and a 69-gallon First Hour Rating (FHR). Best for: medium to large households looking to reduce electricity usage while maintaining reliable hot water. Limitation: performance can depend on ambient air temperatures for heat pump efficiency.
Buying Guide: Key Considerations for a 50 Gallon System
What type of system fits your home best?
- Gas tankless vs electric: Gas offers continuous hot water with rapid recovery for busy households, while electric and hybrid systems can reduce installation complexity and energy use in appropriate climates.
- Indoor vs outdoor installation: Indoor gas models require venting and space; outdoor units avoid venting but need weather protection and outdoor clearance.
- Household hot water demand: A larger family or multiple bathrooms benefits from higher flow rates (GPM) and robust recovery. Hybrid electric units can balance energy savings with consistent supply.
Where should you place the unit?
- In-closet or utility room installations work well for gas tankless models with proper venting.
- Outdoor locations suit LP or natural gas outdoor units, reducing indoor venting requirements but necessitating weatherproofing.
- Space constraints and accessibility for maintenance are important when selecting a mounted water heater.
Energy efficiency and operating costs
- Tankless gas models typically provide endless hot water with high energy efficiency but require professional installation for venting and gas line adequacy.
- Electric and hybrid models offer high efficiency, with hybrids reducing electricity consumption up to 70% compared to standard electric tanks, depending on climate.
- Consider Uniform Energy Factor (UEF) and first-hour rating (FHR) to compare true performance across models.
Installation considerations
- Electrical capacity, gas supply, venting, and space should align with the chosen model’s specifications.
- Professional installation is typically required for gas tankless systems to ensure venting and safety compliance.
- Maintenance requirements vary; regular inspection of gas lines, venting, and anode rods (for tanks) play a role in longevity.
Frequently Asked Questions
- What size water heater do I need for a family of four? A 50 gallon capacity is commonly adequate, but consider peak hour demand and shower usage. Tankless or high-recovery units may better support heavy simultaneous use.
- Are gas tankless heaters worth it for a small home? Yes if natural gas is readily available and you want continuous hot water with space savings. For extremely small homes, electric or compact systems may be more cost-effective.
- Do hybrid electric water heaters save money? Hybrid units can reduce electricity usage significantly by using heat pumps, especially in energy-conscious homes with suitable ambient temperatures.
- Can I install a tankless heater myself? Installation is typically recommended to be performed by a licensed professional due to venting, gas lines, and safety considerations.
- Is outdoor installation better than indoor for gas tanks? Outdoor units avoid indoor venting but require weatherproofing and clearance. Indoor units need venting and proper room air flow.
- Which features matter most when comparing 50 gallon options? Look at GPM or recovery rate for flow, BTU output for heating capacity, UEF for efficiency, venting needs, and compatibility with your fuel type.