Choosing the right gas fireplace on/off valve with flange and key is essential for safe, smooth, and reliable fireplace operation. These valves allow you to control gas flow easily while adding an extra layer of safety through secure shutoff and keyed access.
Whether you are installing a new gas fireplace or upgrading an existing setup, a high quality valve ensures better performance, durability, and peace of mind. With different materials, connection types, and pressure ratings available, selecting the best option can feel overwhelming.
This guide highlights the top 9 best gas fireplace on off valves with flange and key, helping you find a dependable solution for efficient and safe fireplace control.
9. Stanbroil Universal 3-Inch Gas Valve Key
The Stanbroil Universal 3‑Inch Gas Valve Key brings both style and functionality to your outdoor heating setup.
Measuring a compact 3 inches in length, this decorative valve key is precision‑machined from solid metal and finished in an eye‑catching antique copper that complements any fire pit or fireplace décor.
Its versatile design fits both 1/4″ and 5/16″ gas valve stems, allowing you to quickly shut off or open the valve without fuss. Built for durability, the key resists corrosion and wear, making it a reliable companion for seasonal use.
Whether you’re replacing a lost key or upgrading the look of your gas control, this key offers a superior, professional appearance while delivering the performance you need.
Key Features
– 3‑inch length, perfect for easy handling
– Decorative, antique copper finish for a premium look
– Solid plated construction, corrosion‑resistant
– Compatible with 1/4″ and 5/16″ valve stems
– Precision‑machined for smooth operation
Pros
- Elegant antique copper finish enhances aesthetics
- Works with two common valve stem sizes
- Compact 3‑inch length for easy storage
- Durable solid plating resists rust and wear
- Precision machining ensures smooth turning
Cons
- Not suitable for larger than 5/16″ stems
- Requires manual operation, no automatic shutoff
- Limited to gas fire pits and fireplaces only
8. Midwest Hearth Gas Fire Pit Key Valve Kit
The Midwest Hearth Gas Fire Pit Key Valve Kit delivers reliable, on‑demand control for any outdoor heating setup. The kit comes complete with a straight brass ball valve, a sleek flat‑black floor plate, and an 8‑inch universal key—everything you need for a quick, hassle‑free installation.
Engineered with solid brass construction, the ball valve provides a leak‑free seal and eliminates the pressure drop you’d experience with a globe valve. It’s fully compatible with both natural gas and LPG (liquid propane), giving you flexibility no matter which fuel source you prefer.
Certified to ANSI Z21.5 and CSA standards, the valve meets rigorous safety requirements, and its 1/4‑turn on/off operation makes adjustments swift and effortless.
With 3/4″ NPT inlet/outlet threads and a 1/2″ NPSM floor plate, this kit fits most fire pit configurations while handling up to 1/2 PSIG pressure.
Key Features
– Straight brass ball valve with 3/4″ NPT fittings
– Flat‑black floor plate (1/2″ NPSM) for discreet mounting
– 8″ universal key in flat black for easy operation
– Multi‑fuel compatible (natural gas or LPG)
– CSA‑certified, ANSI Z21.5 compliant
– 1/4‑turn on/off, 1/2 PSIG max pressure
Pros
- Solid brass valve ensures long‑lasting durability
- No pressure drop thanks to ball‑valve design
- Works with both natural gas and propane fuels
- Flat‑black finish blends seamlessly with outdoor décor
- Simple 1/4‑turn operation for quick adjustments
Cons
- Requires 3/4″ NPT plumbing connections
- Not suitable for high‑pressure commercial systems
- Floor plate limited to 1/2″ NPSM mounting holes
7. Midwest Hearth 3″ Gas Fire Pit Kit
The Midwest Hearth 3″ Gas Fire Pit Key Valve Kit delivers reliable, on‑demand control for any outdoor fire feature.
The kit comes complete with a straight brass ball valve, a sleek flat‑black floor plate, and a universal 3″ key—all finished in a low‑glare black that blends seamlessly with modern patio décor.
Engineered with a solid brass ball valve, it offers instant on/off operation without the pressure drop typical of globe‑type valves.
The 1/2″ NPT fittings and 1/2 PSIG maximum pressure rating make installation straightforward, while the 1/4‑turn mechanism provides smooth, precise flow control.
Certified to ANSI Z21.5 standards by CSA, the valve is safe for both natural gas and LPG propane, giving you the flexibility to choose the fuel source that best fits your setup.
- KIT INCLUDES – Straight brass valve, flat‑black floor plate, 3″ universal key.
- SOLID BRASS BALL VALVE – Superior on/off control, no pressure loss.
- MULTI‑FUEL COMPATIBLE – Works with natural gas or LPG propane.
- CSA CERTIFIED – Meets ANSI Z21.5 safety standards.
- VALVE SPECS – 1/2″ NPT, 1/2 PSIG max, 1/4‑turn operation.
Pros
- Easy 1/4‑turn on/off operation.
- Robust brass construction resists corrosion.
- Flat‑black finish blends with modern décor.
- Compatible with both natural gas and propane.
- CSA‑certified for peace of mind.
Cons
- Requires 1/2″ NPT plumbing.
- Not suitable for high‑pressure systems.
- Black finish may show scratches over time.
6. Stanbroil QS-3/4 NPT
The Stanbroil Straight Quarter‑Turn Shut‑Off Valve Kit is engineered for fire‑pit enthusiasts who demand reliable, leak‑free performance from their natural gas (NG) or liquid propane (LP) setups.
The kit includes a straight brass ball valve, a sturdy floor plate, and a 3‑inch universal key—everything you need for a quick, secure installation. Rated for up to 300,000 BTU, this valve handles high‑output burners without sacrificing control.
Its 3/4‑inch female NPT connections on both inlet and outlet provide a universal fit for most gas lines, while the polished chrome flange adds a sleek, corrosion‑resistant finish that blends with any outdoor décor.
The quarter‑turn design delivers instant on/off operation with no pressure drop, ensuring consistent flame quality and safety. Whether you’re upgrading an existing pit or building a new one, the Stanbroil kit offers a straightforward, durable solution that keeps the fire roaring and the worries low.
Pros
- Handles up to 300,000 BTU safely
- Polished chrome flange resists corrosion
- Straight brass valve ensures long‑term durability
- 1/4‑turn operation for instant shut‑off
- Universal 3‑inch key fits most setups
Cons
- Requires compatible 3/4″ NPT fittings
- Brass may tarnish if not cleaned regularly
- Not suitable for low‑BTU burners only
5. Stanbroil 1/2″ Shut-Off Valve Kit
The Stanbroil 1/2‑Inch Straight Quarter‑Turn Shut‑Off Valve Kit is engineered for fire‑pit enthusiasts who demand reliable, leak‑free control of natural or LP gas.
This kit features a sturdy brass body paired with a polished chrome flange, delivering both durability and a sleek appearance that resists corrosion.
The quarter‑turn ball valve provides instant on/off operation, while the 1/2‑inch inlet and outlet use standard female NPT threads for easy integration with most fire‑pit manifolds.
Rated for up to 150,000 BTU, the valve handles high‑output burners without sacrificing performance. For added convenience, the package includes two 3/8″ male‑flared × 1/2 NPT fittings, eliminating the need for extra hardware.
Key Features
– Straight gas shut‑off valve with quarter‑turn ball
– Compatible with 150,000 BTU fire pits
– 1/2″ inlet/outlet, female NPT threads
– Chrome‑finished flange and brass body for longevity
– Two 3/8″ male‑flared × 1/2 NPT fittings included
Pros
- Quick quarter‑turn operation, no tools needed
- High BTU rating handles powerful burners efficiently
- Chrome flange resists rust and looks great
- Brass construction ensures long‑term durability
- Comes with extra fittings for easy installation
Cons
- Requires compatible NPT connections only
- Slightly larger than compact valve models
- Not suitable for propane pressures above rating
4. Onlyfire 1/2″ Straight Gas Key Valve Kit
The Onlyfire 1/2‑Inch Straight Gas Key Valve Kit is a compact, reliable shut‑off solution for fire pits and fireplaces up to 150,000 BTU. Its standard quarter‑turn ball valve delivers smooth, instant control, while the polished chrome flange and matching key add a touch of modern style.
Designed for both wall and ground mounting, the kit fits neatly into tight spaces and can be installed with basic tools. The 3‑inch key provides a comfortable grip for quick adjustments, and the durable construction ensures long‑term performance even in outdoor environments.
- 1/2 inch straight ball valve with polished chrome flange & key
- Standard quarter‑turn operation for easy shut‑off
- Rated for 150,000 BTU or fewer
- Suitable for wall or ground mounting
- Decorative chrome finish matches most fire‑pit designs
Pros
- Polished chrome flange adds sleek aesthetic
- Quarter‑turn design ensures quick shut‑off
- Compact size fits tight installation spaces
- Handles up to 150,000 BTU safely
- Easy mounting on wall or ground
Cons
- Not suitable for high‑BTU units
- Chrome finish may show water spots
- Key size may feel large for some users
3. Supplying Demand LLFLGKIT-ABR Fireplace Log Lighter Kit
The Supplying Demand LLFLGKIT‑ABR Fireplace Fire Pit kit is a versatile, manual‑shut‑off solution for controlling gas to a log lighter in any fireplace or fire‑pit setup.
Designed with a sturdy antique‑brass finish, the kit includes a reliable gas valve, a removable 3‑inch key, and a decorative universal flange that doubles as a trim plate for a polished look. It’s compatible with most major brands—just double‑check your model’s fitment before installing.
Mounted conveniently near the fire source, the valve lets you turn the gas on or off with a simple twist of the key, giving you precise control over ignition and added peace of mind.
Pros
- Easy manual shut‑off with removable key
- Antique brass finish adds classic elegance
- Universal flange provides a finished appearance
- Compatible with most major fireplace brands
- Simple installation near fire pit location
Cons
- Verify fitment with specific model first
- Manual operation may not suit automated systems
- Brass finish may require occasional polishing
2. Skyflame 3/4″ Straight Gas Key Valve Kit
The Skyflame 3/4‑inch Straight Gas Key Valve Kit is engineered for both natural‑gas and liquid‑propane fire features, delivering a robust 300,000 BTU output at just 3/4 PSI.
Its high‑capacity 3/4‑inch inlet and outlet, paired with standard female NPT threads, ensures a strong, steady flow for vibrant, consistent flames.
The kit includes a durable brass quarter‑turn ball valve, a 3‑inch universal key, and a flat‑black floor‑plate flange—providing a sleek, low‑profile finish that blends seamlessly with any fire pit, fire bowl, fire table, or custom fireplace project.
Ball valves outperform globe valves by offering instant on/off control without the pressure drop that can dampen flame performance. Installation is straightforward: simply attach the valve to your gas line, secure the flange to the base, and use the key for quick adjustments.
Whether you’re building a DIY backyard fire pit or upgrading an existing fireplace, this kit offers reliable, high‑performance control that keeps your fire burning bright and safe.
Pros
- Handles natural gas and propane effortlessly
- 300,000 BTU rating for powerful flames
- Quarter‑turn ball valve eliminates pressure loss
- Flat‑black flange adds modern, unobtrusive look
- Easy‑install key and flange simplify setup
Cons
- Requires compatible 3/4‑inch NPT fittings
- Brass valve may need periodic cleaning
- Key size may be oversized for tiny projects
1. Skyflame 1/2″ Gas Valve Kit
The Skyflame 1/2‑inch Straight Gas Key Valve Kit is the perfect finishing touch for any DIY fire pit, fire bowl, fire table, or fireplace project. Designed for both natural gas and liquid propane, this kit delivers a robust 150,000 BTU output at just 1/2 psi, ensuring a strong, steady flame every time.
The high‑capacity 1/2‑inch inlet and outlet with standard female NPT threads provide a smooth, unrestricted flow, while the chromed floor‑plate flange adds a sleek, durable look.
Inside, a brass quarter‑turn ball valve replaces traditional globe valves, giving you instant on/off control with zero pressure loss. The included 3‑inch key makes adjustments quick and effortless, and the entire assembly is built to withstand the heat and wear of regular outdoor use.
Whether you’re crafting a custom fire feature or upgrading an existing setup, this kit offers reliability, performance, and a polished finish.
Pros
- Handles natural gas or propane effortlessly
- 150,000 BTU rating for powerful flames
- Quarter‑turn ball valve eliminates pressure drop
- Chromed flange adds durable, attractive finish
- Easy 3‑inch key for quick adjustments
Cons
- Requires 1/2‑inch NPT connections only
- Brass valve may need periodic cleaning
- Not suitable for low‑BTU applications
Frequently Asked Questions
What features should I look for when choosing the best gas fireplace on/off valve with flange and key?
- Durable construction – Look for a valve made from brass or stainless steel to resist corrosion and wear.
- Secure flange design – A properly sized, welded or bolted flange ensures a leak‑free connection to the gas line and fireplace manifold.
- Easy‑use key – A sturdy, ergonomically‑shaped key provides precise control and prevents accidental turning.
- Safety certifications – Choose a valve that meets UL, CSA, or EN standards for gas appliances.
- Adjustable flow control – Some models include a pilot‑adjustable feature for fine‑tuning flame size.
How do I install a gas fireplace on/off valve with flange and key safely?
- Turn off the gas supply at the main shut‑off valve and verify no gas is flowing.
- Remove the old valve (if replacing) by loosening the flange bolts and disconnecting the gas line with a wrench.
- Fit the new flange onto the fireplace’s gas inlet, ensuring a clean, flat surface for a proper seal.
- Apply gas‑rated pipe joint compound (or Teflon tape if specified) to the threads, then attach the valve using the supplied bolts.
- Reconnect the gas line to the valve’s inlet, tighten securely, and check for proper alignment of the key slot.
- Perform a leak test by applying a soap‑solution to all connections; bubbles indicate a leak that must be tightened.
- Restore gas flow and operate the valve with the key to confirm the fireplace lights and shuts off cleanly.
Conclusion
Choosing the right on‑off valve with flange and key is essential for safety, efficiency, and ease of use in any gas fireplace setup. A well‑designed valve not only provides reliable control over the flame but also integrates seamlessly with existing installations, minimizing leaks and maintenance hassles.
Prioritizing durable materials, precise engineering, and user‑friendly operation ensures that the fireplace delivers consistent warmth while protecting your home.
By focusing on these core attributes—robust construction, dependable sealing, and straightforward key access—you can confidently enjoy the comfort of a gas fireplace, knowing the valve will perform reliably season after season.
