Answer: For RV owners and campers needing reliable temperature, pressure, and bypass controls, these camper hot water heater valves prioritize safety, cost-saving Winterizing, and easy maintenance. The best choices vary by need: relief valves for protection, bypass kits for winterizing, and check valves for backflow prevention. The top picks below are grouped by function to help you choose quickly based on your setup and hose connections.
| Product | Primary Function | Best For |
|---|---|---|
| Camco Automatic Temperature and Pressure Relief Valve with Extension Probe | Overheat and overpressure protection | RVs needing built-in protection with an extension probe |
| GASHER 1/2″ NPT RV Temperature & Pressure Relief Valve | Overheat and high pressure relief | Budget-friendly protection upgrade |
| Camco By-Pass Kit | Winterizing bypass to save antifreeze | Frequent winterizers and 6-gallon tanks |
| RV Water Heater Backflow Preventer | Backflow prevention | Preventing contaminants and backflow in RV systems |
| GUOJINJISM 3-Way Diverter Valve | Winterize bypass with quick switching | Fast winterizing across multiple configurations |
Camco Automatic Temperature and Pressure Relief Valve
This valve combines temperature and pressure relief with an extension probe and lever. It features a brass body, a stainless steel pressure spring, and factory settings of 150 PSI and 210° Fahrenheit. The ¾-inch NPT connection fits standard RV and home water heaters. It is best for buyers seeking built-in protection against overheating and high pressure without multiple components.
Who this is best for: RV owners who want a ready-to-install relief valve with a robust brass body and a long probe for accurate sensing. Why selected: it provides a straightforward upgrade path for protection and uses a proven design.
Caution: Ensure compatibility with your heater’s thread and space for the 4-inch probe; may require minor clearance adjustments in tight compartments.
GASHER 1/2″ NPT RV Temperature & Pressure Relief Valve
Offers protection for overheating and high water pressure with a reinforced brass body and stainless steel spring. It includes an epoxy-coated probe and lever, and supports up to 150 PSI and 210° Fahrenheit. This option is a solid budget-friendly choice for RVs and homes alike.
Who this is best for: Buyers seeking reliable relief valve protection without premium features. Why selected: simple installation with durable materials at a lower price point.
Limitation: The data reflects standard limits; verify space for the epoxy-coated probe and lever within your cabinet or paneling.
161109 525042 Gas Valve for Suburban SW Series
This gas valve is compatible with Suburban SW series water heaters and features a 3/8” NPT inlet with a 1/4” Loxit outlet. It covers several Suburban 6–16 gallon models, including after specific serial numbers. It is best for RV owners replacing a Suburban controller valve or integrating with existing Suburban tanks.
Who this is best for: Campers with Suburban water heaters seeking a compatible replacement valve. Why selected: explicit compatibility with common SW models improves fit and ease of installation.
Caution: Confirm model compatibility and serial number range to avoid mismatches with older or newer Suburban units.
RV Water Heater Backflow Preventer
Made of lead-free brass, this check valve uses 1/2″ NPT double male threads for secure connections. It resists heat and pressure while meeting NSF standards for potable water. It’s best for preventing backflow into your fresh water system.
Who this is best for: RVers prioritizing backflow prevention to protect potable water lines. Why selected: solid brass construction and NSF compatibility provide durable, code-consistent performance.
Caution: Works as a backflow valve, not a temperature/pressure relief device; use in conjunction with a proper relief valve where required.
Camco Camper/RV Water Heater By-Pass Kit
Designed to bypass your camper water heater during winterizing, this kit includes an 8-inch nylon reinforced hose and two brass valves. It is compatible with 6-gallon tanks and 1/2″-14 NPT threads. It helps save 6–10 gallons of RV antifreeze per winterizing cycle and reduces setup time.
Who this is best for: RVers who winterize frequently and want a permanent, reliable bypass setup. Why selected: high antifreeze savings and durable brass fittings simplify annual maintenance.
Limitation: Best suited for 6-gallon tanks; verify tank size and thread compatibility with your model before purchase.
RV Hot Water Heater Bypass Diverter Valve 94228
This 3-way diverter valve provides winterizing with 1/2″ PEX connections. It touts reinforced materials with increased compressive strength to resist temperature and chemical exposure. It aims to deliver a quick switch to bypass and simplify the fill process.
Who this is best for: RV owners seeking a fast, universal bypass solution that works with multiple hose configurations. Why selected: universal compatibility and a feature-forward design for quick winterizing.
Caution: Some installations may require additional fittings or adapters depending on RV model and existing plumbing layout.
BZTT RV Water Heater Pressure Relief Valve Remover
Although focused on removal, this tool facilitates maintenance by enabling safe removal of temperature-pressure relief valves with a 7/8-inch wrench. It is best for technicians or owners performing maintenance tasks without risking damage to fittings.
Who this is best for: Those who frequently service relief valves or need a dedicated tool. Why selected: leverages a wrench size that matches common valve hardware for safer, efficient work.
Limitation: Not a valve itself; intended for removal and maintenance tasks rather than active operation in a system.
Buying Guide: Key Considerations for Camper Water Heater Valves
Valve type and function: Choose relief valves for protection against overheating or overpressure, bypass kits for winterizing efficiency, and backflow preventers to protect potable water lines. Consider whether you need a 1/2″ or 3/4″ NPT connection and compatibility with your heater brand (Suburban, Atwood, Dometic, etc.).
Materials and durability: Brass bodies and stainless steel springs offer durability for mobile environments. Epoxy-coated probes can resist corrosion in damp spaces.
Installation and space: Measure available space in your RV cabinet to ensure enough clearance for the valve, probe length, and any hoses. Bypass kits should align with tank size (e.g., 6-gallon tanks) and thread standards.
Maintenance and safety: Consider valves with straightforward testing procedures and clear instructions. Use proper thread sealant tape for leak prevention. Always verify temperature and pressure ranges align with your heater’s design.
Compatibility: Confirm model compatibility for replacements or upgrades (Suburban SW series, 6–16 gallon heaters, etc.). For universal valves, check NPT or BSP thread compatibility and hose connections (PEX, CPVC, rubber hoses).
FAQ
- What is a camper water heater relief valve and why do I need it? It protects the heater from overheating and high pressure, reducing the risk of damage or leaks.
- Can I install a bypass kit myself? Yes, many kits are designed for DIY installation, especially those with standard 1/2″ NPT threads, but follow the manufacturer’s instructions and shut off the water supply first.
- Which valve is best for winterizing? A by-pass kit or a 3-way diverter valve is ideal to bypass the heater and conserve antifreeze during winterizing.
- Do these valves fit all RV water heaters? Not all do; check compatibility with Suburban, Atwood, Dometic models and your tank size before purchasing.
- Is backflow prevention necessary? It helps protect potable water systems by preventing contaminated water from flowing back into fresh lines.
- What maintenance is required? Periodically inspect for leaks, ensure seals are intact, and replace worn components following the product’s guidelines.