Modern Home Products, commonly known as MHP, is a pioneer in the outdoor cooking industry. Having introduced the first outdoor gas grill in 1960, the brand has established a reputation for creating durable, long-lasting products that stand the test of time. Unlike many modern grills made from thin stainless steel that can rust or corrode, MHP grills often feature heavy-duty cast aluminum housings that are virtually indestructible.
Because the exterior of an MHP grill lasts so long, owners frequently find themselves looking for replacement parts to keep the internal components functioning perfectly. Whether you are looking to restore an older model or simply perform routine maintenance, understanding the specific components of your grill is the first step toward a successful repair. This guide will help you identify your model, find the right parts, and maintain your grill for years of reliable service.
Identifying Your MHP Grill Model
Before you can order replacement parts, you must accurately identify which MHP model you own. Because the brand has been around for decades, many different series exist, and parts are often specific to certain generations of grills. Using the wrong burner or grid can lead to poor performance or safety issues.
The easiest way to identify your grill is to locate the data plate. This is typically a small metal tag or sticker located on the back of the grill head or inside the cabinet base. This plate will list the model number and the serial number. Common MHP model prefixes include:
- WNK Series: One of the most popular permanent-mount or cart-style grills.
- TJK Series: A slightly smaller version often used for residential patios.
- RG Series: Part of the “Reach-In” or specialized residential lines.
- JNR Series: Compact models designed for smaller spaces while maintaining high heat output.
If the data plate is missing or unreadable, you can often identify the grill by measuring the cooking surface. MHP grills generally fall into standard sizes, such as 22-1/2 inches by 15 inches for the WNK series. Knowing these dimensions will help you narrow down the compatible parts.
Essential MHP Grill Replacement Parts
Even the highest quality grills require part replacements due to the intense heat and grease they encounter. Here are the most common components that MHP owners need to replace over time.
Burner Assemblies
The burner is the heart of the grill. MHP grills typically use either an “H-style” burner or an oval burner. These are usually made from high-grade stainless steel or cast iron. Over time, the ports (the small holes where the flame comes out) can clog or the metal can thin out due to oxidation.
When replacing a burner, it is crucial to ensure the venturi tubes—the pipes that connect the burner to the gas valves—are properly aligned. MHP burners are known for providing even heat distribution, so using an OEM (Original Equipment Manufacturer) or high-quality aftermarket part is recommended to maintain that performance.
SearMagic Cooking Grids
One of the standout features of MHP grills is the SearMagic cooking grid system. These are unique, reversible aluminum grids. One side is ribbed for perfect sear marks, while the other side is flat for cooking delicate items like fish or vegetables. Because they are made of aluminum, they heat up very quickly and resist rust.
If your grids have become pitted or heavily encrusted with carbonized grease that won’t come off, replacing them can instantly improve your cooking results. Many users also choose to upgrade their standard stainless steel grids to SearMagic grids for better heat retention.
Briquettes and Rock Grates
MHP grills utilize a “Flavor Master” system, which consists of porcelain briquettes resting on a heavy-duty grate above the burner. This system is designed to distribute heat evenly and vaporize drippings, which adds flavor back into the food. Over time, briquettes can crumble or become overly saturated with grease, which can lead to flare-ups.
Replacing the briquettes every few seasons is a simple and inexpensive way to refresh your grill. Ensure the rock grate underneath is still structurally sound; if it is sagging or rusted through, it should be replaced to prevent the briquettes from falling onto the burner.
How to Maintain Your MHP Grill
Regular maintenance is the secret to making an MHP grill last for thirty years or more. Because the housing is cast aluminum, you don’t have to worry about the body of the grill rusting, but you do need to care for the functional parts.
Cleaning the Burner Ports
At least once a year, you should remove the burner and inspect the ports. Use a small drill bit or a paperclip to clear any debris or spider webs from the holes. Spiders are often attracted to the smell of gas and may spin webs inside the venturi tubes, which can cause a “flashback” fire behind the control panel.
Inspecting Gas Lines and Connections
Safety should always be your top priority. Regularly check the gas hose for cracks or brittleness. You can perform a simple leak test by brushing a mixture of soapy water over the connections while the gas is turned on (but the grill is not lit). If you see bubbles forming, you have a leak that needs to be addressed immediately by tightening the connection or replacing the hose.
Cleaning the Interior Casting
While the cast aluminum won’t rust, grease can build up on the inside of the lid and the bottom of the firebox. Use a plastic scraper to remove heavy buildup. Avoid using harsh chemical oven cleaners on aluminum, as they can discolor the metal. A simple solution of warm water and mild dish soap is usually sufficient for the exterior.
Troubleshooting Common Issues
If your grill isn’t performing as it should, there are a few common culprits to check before assuming you need a new grill.
- Low Heat: This is often caused by a tripped “bypass” valve in the regulator. Turn off the gas at the tank, disconnect the hose, reconnect it, and turn the gas on very slowly.
- Uneven Flames: This usually indicates clogged burner ports or a burner that has rusted through in one specific area.
- Ignitor Not Clicking: MHP grills use a simple push-button or rotary ignitor. Check the electrode near the burner to see if it is bent or covered in grease. Often, a quick cleaning with a wire brush will restore the spark.
Conclusion
Owning an MHP grill is an investment in quality that can pay off for decades. By identifying your model correctly and replacing wear-and-tear parts like burners and briquettes, you can maintain a professional-grade cooking experience in your own backyard. Regular cleaning and safety inspections will ensure that your grill remains a reliable centerpiece for family gatherings and outdoor meals.
If you found this guide helpful, consider exploring our other articles on outdoor kitchen maintenance, propane safety tips, and the best tools for backyard grilling to further enhance your outdoor cooking expertise.