- Description
- The Technology
- Manuals
- Specifications
- Options and Accessories
- Read more to LEARN MORE! š
- Lowest Price Guarantee šÆ
- Warranty Details
Sierra Flame Lyon 48" 4 Sided See Through Natural Gas Fireplace LYON-48-NG Review
Enhance the ambiance of your home with the exquisite Sierra Flame Lyon 48" 4 Sided See Through Natural Gas Fireplace LYON-48-NG. Experience unparalleled comfort and warmth by indulging in this stunning addition. Don't miss the chance to elevate your living space. Secure your order today exclusively at Flame Authority, the reliable dealer you can trust!
Introducing the Sierra Flame Lyon 48" 4 Sided See Through Natural Gas Fireplace LYON-48-NG, a remarkable addition to your home that combines elegance, functionality, and convenience. With its double glass and screen-free design, you can enjoy unobstructed views of the mesmerizing flames from every angle, thanks to the innovative 4-sided see-through unit offering a breathtaking 360° view. Built with an all-wood framing and no concrete board required, this fireplace provides flexibility in installation and allows you to finish it with combustible materials to match your unique aesthetic preferences. With a powerful heat output of up to 32,500 BTU on high and 21,000 BTU on low, this fireplace ensures optimal warmth and comfort. Upgrade your living space today with the Sierra Flame Lyon 48" 4 Sided See Through Natural Gas Fireplace LYON-48-NG and transform your home into a cozy retreat.
Features:
- Double Glass & Screen Free
- All Wood Framing
- 4 Sided See Through Unit ā Full 360° View
- No Concrete Board Required
- Available Size ā 48ā
- Able to Finish with Combustible Around the Fireplace
- Up to 32,500 BTU on high & 21,000 BTU on low
Elevate your living space and indulge in the unparalleled ambiance this fireplace offers. Seize the moment and secure your very own Sierra Flame Lyon 48" 4 Sided See Through Natural Gas Fireplace LYON-48-NG today!
The Technology
- No Gaps
- No Louvres
- No Heat Dump
- All Contained within the fireplace
- Wood and Drywall Combustibles Okay
- Quick and Simple Installation. No technician is required for cleaning the glass
No-Gap
With a lot of fireplaces, they need to create an escape for the heat to vent out. To do this they leave a gap at the top of the fireplace wall to create a crown to hide the opening. A gap is not necessary.
No Intake or Exhaust Louvres
Your wall will not have any intake or exhaust louvers to break up the look.
No Heat Dump
There are no vents required behind the wall of the fireplace to dump the built-up heat.
Combustibles Okay
Everything is contained within the firebox. Able to finish with combustibles around the fireplace. No special concrete board or metal studs
Manuals:
- Sierra Flame Product Brochure
- Sierra Flame Lyon 48" Product Manual
- Sierra Flame LYON-48-NG Technical Specification
- Technical Comparison forĀ Sierra Flame Lyon 48" 4 Sided See Through Natural Gas Fireplace LYON-48-NG
- Sierra Flame Basic Remote Guide
- Sierra Flame EI & Deluxe System Troubleshooting Guide
Need assistance? Talk to an Expert atĀ +1-800-923-4556 or email: support@flameauthority.comĀ to get the best-suitedĀ gas fireplacesĀ for your needs.
Specifications:
- Lyon 48ā
-
BTUās: Hi 32,500 Lo 21,000Ā (Natural Gas)Ā
- Vent:Ā Top 5" & 8"
- Height:Ā 34.61" (Actual) 38.52" (Framing)
- Width:Ā 49.39" (Actual) 51.24" (Framing)
- Depth:Ā 22.79" (Actual)Ā 23.5" (Framing)
- Viewing Area:Ā 15.34" (Height)Ā 45.16" (Width)
- Side View Area:Ā 15.34" (Height)Ā 13.40" (Width)
- Single Side View: 15.53" (Height) 39.17" (Width)
- Technical Specifications
-
Inner Diameter: 4
-
Outer Diameter: 6
- Clearance to Combustibles: 3"
Dimensions
Options and Accessories:
- Termination Kit -5" & 8" Venting -Ā GEN-TERMKIT
-
Termination Kit -5ā³ & 8ā³ Venting
- Termination Kit for Vienna, Toscana, or Lyon Fireplace Products.
- Duravent 5 PC Through the Roof Kit -Ā 58TTRK
- 5 piece kit
- Designed for use with Sierra Flame Boston fireplaces
- Includes high wind cap, 36" hard pipe, storm collar, adaptor, and flashing
- Duravent 5 PC Through the Roof Kit -Steep -Ā 58TTRK-STEEP
- 5 piece kit
- For steep roofs
- Designed for use with Sierra Flame Boston fireplaces
- Includes high wind cap, 36" hard pipe, storm collar, adaptor, and flashing
Welcome to our Special Section,
Here we've gathered all of the related articles in the hopes of assisting you in knowing the PERFECT MATCH for your Home.
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We understand that buying this unit is a significant investment, so we make sure you'll get the right unit for your precious home.
We have Professional Team that are ready to assist you!
Furthermore, because YOUR SATISFACTION IS OUR TOP PRIORITY we offer āØSUPRISING DISCOUNTS⨠that cannot be found anywhere else!
Flame Authority is an authorized dealer for every brand we sell which means you qualify for the full manufacturer warranty with every purchase.
We value your time and money. Our Customer care are always available to help you with your concerns.
We ship directly to your door from the manufacturer's warehouse.
Every product is thoroughly inspected for quality assurance and packaged with the utmost care to ensure it arrives in perfect working condition. We ship with only the best carriers including UPS, FedEx, USPS, and trusted freight companies to get your product to you in the fastest time possible.
We haveāØSUPRISING DISCOUNTS⨠awaiting for you!
FREQUENTLY ASKED QUESTIONS
What if I find a lower price than at your store?
- We put forth a lot of effort to ensure that we have the absolute best prices online. We work with our suppliers to ensure that they set minimum advertised pricing guidelines for all of our competitors. This means that everyone else selling the same product online is supposed to be selling it at the same price. If you find another online store that offers a lower price than us within 30 days of your purchase date, please let us know, and we will contact the brand to ensure they are not breaking the minimum advertised price policy. If you qualify for a refund, you will be refunded the difference in price to your credit card.
What are the limitations of your 100% Price Guarantee?
- You must purchase the item from our website before requesting your Price Match Guarantee
- Promotions such as rebates and "buy one, get one free" offers are not eligible
- The item must be in stock on the competitor's website
- The competitor must be an online store; they may not have a retail location
- The website cannot be a discounter or auction website (i.e., eBay, Overstock, Walmart, Amazon, etc..)
- The competitor must be an Authorized Retailer of the product in question
- The Price Match Guarantee includes the item price and the shipping charges; it excludes sales tax
Is there any Special Discounts for HVAC, Contractors, Designers at Flame Authority?
- Without a doubt! You deserve to acquire the products you want at a discounted price, therefore please do not hesitate to contact us.

GAS FIREPLACE WARRANTY
Your Sierra Flame gas fireplace is guaranteed to be free of defects in materials and workmanship for a period of 5 years from the date of purchase. This covers: combustion chambers, heat exchangers and burners as well as stainless steel parts against tarnishing.
Electrical (110 volt and millivolt) components and wearable parts such as blowers, gas valves, thermal switches, switches, wiring, remote controls, igniters, gaskets, glass (thermal damage only) and pilot assemblies are covered for 1 year and Sierra Flame will provide replacement parts free of charge during the fi rst year of the limited warranty
CONDITIONS AND LIMITATIONS
Sierra Flame warrants its products against manufacturing defects to the original purchaser only – ie. the individual or legal entity (registered customer) whose name appears on the original invoice – provided that the purchase was made through an authorized Sierra Flame dealer and is subject to the following conditions and limitations:
- This factory warranty is nontransferable and may not be extended whatsoever by any of our representatives.
- A licensed, authorized service technician or contractor must have installed the gas fireplace. Installation must be done in accordance with the installation instructions included with the product and all local and national building and fire codes.
- This limited warranty does not cover damages caused by misuse, lack of maintenance, accident, alterations, abuse or neglect. Parts installed from other manufacturers will nullify this warranty.
- This limited warranty further does not cover any scratches, dents, corrosion or discoloring caused by excessive heat, abrasives, chemical cleaners nor any venting components used in the installation of the fireplace.
- This warranty does not cover any problems caused to installation used venting or vent terminations which are not certified for use with this product.
- Any installation, labor, construction, transportation or other related costs or expenses arising from defective part(s), repair or replacement or otherwise of same, will not be covered by this warranty nor shall Sierra Flame assume responsibility for same. Further, Sierra Flame will not be responsible for any incidental, indirect or consequent damages, except as provided by law, and in no event shall they exceed the original purchase price.
- As part of industry warranty standards all faulty gas units/ parts, must be returned to our headquarters and fully inspected prior to any warranty credits being issued. Please provide carrier tracking information on when the parts were returned to our office. Only parts deemed manufacture defective will be credited.
- In the first year only, this warranty extends to the repair or replacement of warranted parts, which are defective in material or workmanship provided that the product has been operated in accordance with the operation instructions and under normal conditions.
- After the first year, Sierra Flame may, at its discretion, fully discharge all obligations with respect to this warranty by refunding to the original warranted purchaser the wholesale price of any warranted but defective parts.
- Notwithstanding any provisions contained in this warranty, Sierra Flame’s responsibility under this warranty is defined as above and it shall not in any event extend to any incidental, consequential or indirect damages.
- T is warranty defines the obligations and liability of Sierra Flame with respect to the Sierra Flame gas fireplace and any other warranties expressed or implied with respect to this product, its components or accessories are excluded.
- Sierra Flame neither assumes, nor authorizes any third party to assume, on its behalf, any other liabilities with respect to the sale of this product. Sierra Flame will not be responsible for: over firing, downdrafts, spillage caused by environmental conditions such as rooft ops, buildings, nearby trees, hills, mountains, inadequate vents, excessive venting configurations, insufficient make up air, or negative air pressures which may or may not be caused by mechanical systems such as exhaust fans, furnaces, clothes dryers, etc.
- Any damages to fireplace, combustion chamber, trim, or other component due to water, weather damage, long periods of dampness, condensation,
damaging chemicals, or cleaners will not be the responsibility of Sierra Flame. - The bill of sale or copy will be required together with a serial number and a model number when making any warranty claims from your authorized dealer.
- Sierra Flame reserves the right to have its representative inspect any product or part thereof prior to honoring any warranty claim.
We are an authorized dealer for every brand we sell!
Our SATISFACTION GUARANTEE and LOWEST PRICE GUARANTEE let you rest easy knowing you'll be taken care of, no matter what happens.
By buying from us you qualify for the full manufacturer warranty, save time and money! We ship directly to your door from the manufacturer's warehouse. Every product is checked for quality assurance and packaged with the utmost care to ensure it arrives in perfect working condition. We ship with only the best carriers including UPS, FedEx, USPS, and trusted freight companies to get your product to you in the fastest time possible. We even offer discounts with most orders just to make your day a little better.
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Let customers speak for us
from 455 reviewsI was able to get a Novus 33 in brick refractory back for my NG Novus fireplace insert. Novus is a high demand item and Flame authority was only supplier without a huge delay from manufacturer. I recommend them for all fireplace needs.

Great service and great product

Product is great, free shipping was good, and unpacking and installing it was easy. Customer support was great too, both with the sales and shipping carrier. After much researchā¦the Modern Flames Redstone is the one.

A+ = both the sale, the shipping process, and the product

I purchased burner and fire box. I emailed and spoke with Jim . He helped me from start to finish. Great service
The mantel required a little bit of sanding and prep before painting, but was good quality. Flame Authority did an excellent job shipping and it arrived by freight in perfect condition.
The mantel assembled well. I ended up using some construction adhesive to glue the legs on to make it a little more sturdy. I cut pocket holes in the top to attach it to the wall.
Very happy with our purchase!

I shopped for a grill for two people. I want it to last for ten years or more. I want it to get really hot for grilling steaks after they have been cooled sous vide. I want it to be useful also for lower temp cooking. This Blaze grill is perfect for me and my wife. Our purchase through Flame Authority was completed with no problems. I am totally satisfied with this grill and highly recommend it for anyone with similar needs.

Came as advertised and without any delays. Arrived quickly. No issues and would buy from flame authority again.

I wanted to make sure of the size and features of this oven. I called Flame Authority and Mary answered the call. She gave me all the details and I was really amazed coz she really knows what she is selling. Expert with sales and communication. Thumbs Up!

I bought the stove couple weeks ago and ended up having a chance running it a few days I am very pleased with the outcome of the amount of heat it gets out also with the amount of hours it burns at least eight hours. I would recommend this for anyone who is looking for hours of heat output. At first when I bought it I didnāt quite know if mine hopes will be for filled but now they are happy with it. I would recommend this to anyone as a trusted tester of it I am very pleased of the outcome it rains.!

Nice , polite and helpful, when you would call with questions.Fireplace looks nice and throws a decent amount of heat , just a bit of a delay in delivery. Ended up getting it End of January, right before guests arrived. But still only took 3 weeks to get. Thank you Flame Authority !!!

I didn't expect to have this fireplace earlier than the lead time they promised. It looks stunning in my living room and now we are prepared for the upcoming winter season! I am happy with all the updates! Customer service representatives keep on updating me with the process of my order until delivery they are checking it for you! 10 stars for Flame Authority!

Simply beautifully designed. Very efficient. Looks gorgeous in our mid century modern home in a corner space. Will save us $$$ on electric heat bills and is easy to clean with fireplace glass cleaner.

I believe it was David Novak that helped me. Someone ALWAYS answered the phone and located this burner when I couldn't find it anywhere else. It almost seemed too good to be true. But it wasn't. The burner is now nestled in my new outdoor kitchen and am very pleased.

Thank you for a very smooth transaction. the remote is very useful. It is very easy to install
