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Monessen Fortress: one gas fire for the living room and patio
The Monessen Fortress is a see through direct vent gas fireplace set in an outside wall. See through means one side faces the living room and the other faces the patio. It is 36 inches wide, with a 36 by 30 inch window on each side. The included log set gives it a traditional wood fire look. The glass does not mirror the room, so reflections do not compete with the flames. Its stainless steel exterior is built for weather.
Order it for natural gas or propane. Direct vent means a sealed pipe runs to the outside. It brings in air for the fire and carries the exhaust out, so the fire never uses the air in your room. IntelliFire Touch ignition lights it with a button, and a battery backup keeps it running when the power is out. It puts out up to 56,000 BTU, enough to warm both sides. A touchscreen remote comes with it. On the page you pick the fuel and the brick interior panels, and you can add a wall switch or a Wi-Fi module. Comparing indoor and outdoor models? See the Monessen Twilight gas fireplace. The Monessen Fortress ships free from My Cozy Outdoors with No Sales Tax (except WY) and the full manufacturer warranty.
Features
Monessen Fortress See-Through Fireplace
Seamlessly integrate your indoor and outdoor space with the Fortress see-through gas fireplace. The traditional style, expansive viewing area and authentic look fit perfectly in a variety of spaces.
Non-reflective glass, accent lights and multiple interior brick options make this unique fireplace the ultimate in traditional luxury design. Enjoy the view both inside and out with the Fortress.
Key Features:
- Accent lighting enhances the effect of the flame and illuminates the fireplace interior. Enjoy the ambiance, with or without the fire
- 30″ tall fireplace adds enjoyment to your space
- IntelliFire Touch ignition system monitors ignition and ensures safe functioning
- IntelliFire Touch touchscreen remote control
- 316 marine grade stainless steel exterior is rust-resistant even in the harshest conditions
- 8-piece Gas Log Set already included (as seen in images)
Which Fireplace Do I Need?
Fireplace Finder
Answer a few quick questions and we’ll show you the right kind of fireplace for your home or backyard, plus the models that fit.
Where will your fireplace go?
What kind of fire do you want outside?
How do you want it built?
Outdoor fireplaces come two ways: a finished piece you set in place, or a firebox that gets built into a wall.
How big a fireplace do you picture?
Measured by the width of the fire opening, or of the whole unit for ready-made pieces.
What kind of fire do you want?
Not sure yet? Pick “Help Me Choose” and we’ll ask two easy questions.
Do you have natural gas at home, or would you use a propane tank?
Which sounds most like you?
What type of unit do you picture?
Can a vent pipe go through an outside wall or the roof?
Gas fireplaces either vent outside (direct vent) or need no vent at all (vent-free).
What matters most to you?
How big is the space you want to heat?
Enter the square feet of the room, or of the open area the fire will warm.
sq ft
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What are your winters like?
How tall are the ceilings?
How well insulated is the space?
Is it an open floor plan?
How will you use the heat?
Which look do you like best?
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Specifications
LSTF36-B
Model : Fortress 36 Outdoor Fireplace
Framing Width : 49-1/2″
Framing Depth : 23″
Framing Height : 44-7/8″
BTU/hr Input : 56,000 NG
Viewing Area : 36 x 30″
Manuals and Catalogs
Product Brochures
Outdoor Lifestyles Indoor/Outdoor
Outdoor Lifestyles Indoor/Outdoor Canadian French
Installation Manuals
Owner’s Manual
Service Parts
Architect Guides
CAD Drawings
Revit BIM
Accessory Manuals
IntelliFire Touch IFT-RC400 – User Guide
IntelliFire Touch IFT-RC400 / IFT-ACM
Wi-Fi Module Installation instructions
CSI Specifications
FAQ
What grade of stainless steel faces the weather?
The exterior is 316 marine-grade stainless steel, an alloy chosen for corrosion resistance beyond what ordinary stainless offers, and it stays rust-resistant even in the harshest conditions. Few outdoor gas fireplaces carry that specification, and it is why the outdoor half of this fireplace can face rain, humidity, and hard winters year after year without the finish giving way.
Why is the glass non-reflective?
So the fire is what you see. Ordinary fireplace glass can mirror lamps, windows, and the room itself, and those reflections compete with the flames. The Fortress uses non-reflective glass across its expansive viewing area, which keeps the view clean and the fire vivid from either side. It is one of the quiet details behind what Monessen calls the ultimate in traditional luxury design.
Does the Fortress offer ambiance on nights too warm for a fire?
Yes, through its accent lighting. The lights illuminate the fireplace interior and enhance the effect of the flames when the burner is running, and they also work entirely on their own, so the firebox glows as a lit architectural feature with no fire at all. On a mild evening you still get a finished, inviting centerpiece, indoors and out.
Is a log set included with this fireplace?
Yes. An 8-piece gas log set comes already included, the same set shown in the product images, so the traditional hearth look is complete out of the box rather than a separate line on the quote. Stacked in the 30-inch-tall firebox, the logs give the 56,000 BTU natural gas flames an authentic bed to rise from.
What is the battery backup for?
It makes the ignition independent of household electricity. The IntelliFire Touch system runs the burner in daily use, and the built-in battery backup means the fireplace can still be lit if the electrical supply is interrupted, a practical safeguard on an appliance you may be counting on for warmth in rough weather. No generator, no extension cord, just a fire that starts.
What style is the Fortress built around?
Traditional luxury. Where much of the see-through market chases a low, linear ribbon of flame, the Fortress keeps classic hearth proportions and an authentic, established look, with details chosen for warmth rather than minimalism. That traditional style fits a surprising variety of spaces, which is exactly what was intended for a fireplace meant to be lived with, not just looked at.
Can the firebox interior be customized?
Yes. The Fortress offers multiple interior brick options, so the backdrop behind the included log set can be chosen to suit the architecture around it. Because the interior shows on both faces, the brick you select becomes part of the finished look on each side, and picking it deliberately is one of the easiest ways to make the fireplace feel designed rather than installed.
Customer Reviews
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What Our Customers Say
D
A sauna turns your garden into a spa oasis. We debated it for a while, but after renovating our house, we pulled the trigger and bought a sauna from Norse Steam and Maya. She was always super responsive and helpful throughout the process. Don't kid yourself, getting a really nice sauna is not that easy. Sizing and heating need to be figured out, as does the building, but we have always had a helpful partner on our side. She never upsold us on anything we didn't need, and we got some nice freebies when the sauna was delivered. And now we can really enjoy every moment in our garden.
KF
I'm really happy with my sauna purchase. Maya gave above and beyond excellent customer service. She wasn't pushy and gave impressive followup after the delivery to make sure everything was just right.
DE
I enjoy my FD2 Sauna with Red Light, Infrared and radiant heat. Use it 5x a week and my post workout soreness is minimal and sleep great. Maya at Norse Steam was excellent to work with.
B
We purchased the 3-person sauna for our outdoor garden. We chose the cube sauna for the aesthetic and could not be happier.
I assembled by myself except for the 2 large panels (requires a few people). Instructions were good - took me two partial Saturdays to complete and a few hours to unpack and organize in advance of assembly. Had my elec. add a NEMA enclosure on the back for the controller and power for lights and a 2nd panel for the wireless control.
Customer service was excellent
MP
Awesome Sauna and Awesome Company and Experience purchasing it from Maya!
After much research I chose the Finnmark FD-2 and it has met and exceeded all my expectations! Easy to assemble and it functions great - just as advertised. I highly recommend it for home use!
EA
Recently purchased the Finnmark one person after much research. Extremely happy with it and the ordering process. Maya was very responsive and helpful during the process and keeping us updated while we waited for shipment. There were several places I could have ordered this, but i chose Norse Steam based on the communication and customer service which was fantastic. The shipment was also excellent. The setup was pretty seamless for two people - but the best part is the sauna experience 10/10
G
Maya is amazing - super helpful and responsive. Looked at many stores, these guys have the best prices and service. Highly recommend
GR
Norse Steam, and specifically Maya, were extremely helpful as I was making the decision for our Sauna. I was able to get all of the necessary details to make a decision as construction was happening in my backyard to make space for it.
We absolutely love the CL7G. It is extremely comfortable for 6 people (can fit more less comfortably). The Thermory Spruce and Aspen in the interior smells great. The lighting is lovely. We paired the CL7G with the Harvia Spirit 10.5kw.
RS
Had great experience shopping at Norse Steam for the new heater. They had very good deal, with rocks. Customer service was good, and responded very fast with my questions. Received the heater, and it looks good, and the quality seem to be great. Will install soon, and am very excited to start experiencing sauna the way it ment to be
O
positive purchase experience - Harvia Legend 150 SL woodstove
thanks Norse Steam for flawless transaction - I got instant replies on my questions, received competitive price on the wood stove and got it delivered within two weeks!
Can highly recommend Norse Steam for others.
JR
Smoking Hot Tub!
I got the Norse Steam SaunaLife wood-fired hot tub, the S4N model, and its been seriously great. It heats up quicker than I expected, usually around an hour and a half, and once its hot, it stays that way for a good long while. The wood-fired system is simple to use, and honestly kind of fun.
The tub itself feels solid and well put together. The thermo-spruce exterior looks beautiful in person, and the fiberglass interior is smooth, deep, and easy to clean. Its the kind of setup that just works without a bunch of fuss, which I really appreciate.
Also, the team at Norse Steam was genuinely great to work with. Super helpful, quick to respond, and made the process really easy from start to finish. It felt like they actually cared that I was happy with it. The tub has totally become a go-to way to unwind, and I wouldnt change a thing.
S
Maya was so knowledgeable and responsive
Maya was so knowledgeable and responsive. She helped me understand the product options and found a fantastic solution that fit our needs. Her follow through was very helpful and made us comfortable with our decision. We are extremely happy with the end result!
W
Great service
I recently purchased the Harvia Club sauna equipment, and I am thoroughly impressed with both the product and the customer service experience. The heaters robust performance and durable stainless steel construction make it ideal for larger sauna spaces, providing consistent heat and a relaxing environment. Its compatibility with advanced controls ensures a personalized sauna experience every time.
The customer service team was exceptional, prompt, knowledgeable, and helpful throughout the purchase process. They ensured smooth delivery and provided clear guidance on installation and operation. Overall, I highly recommend Harvia Club for anyone seeking premium-quality sauna equipment backed by excellent support!
BT
Great Sauna & Purchase Experience
Great experience purchasing Finnmark FD-2 from Norse Steam. Good communication and easy to assemble. Temperature increases quickly (30 minutes or less to 140) and maintains well. So far this has been a great purchase.
M
Great sauna and great customer service
We purchased the Finnmark SD-1 sauna. Maya was extremely helpful with the purchase. We had an issue with the sauna not reaching the maximum temperature, and Maya connected us with the appropriate technician that explained how to correct the issue. The sauna now heats to the maximum temperature (170 degrees) in less than an hour, and it is a great unit. We are very happy with it, and we would definitely purchase from NorseSteam if we needed any other items.
JK
Sauna Review
I recently purchased a sauna from Norse Steam, and I couldn't be more impressed with the entire experience. From start to finish, their customer service was exceptional, and Maya deserves special recognition for her outstanding support!
Maya was incredibly knowledgeable and patient, answering all my questions about the sauna features, installation process, and maintenance. She went above and beyond to ensure I selected the perfect model for my home. Even after the purchase, Maya followed up to make sure everything was running smoothly and that I was satisfied with my sauna.
The sauna itself is top-notch beautifully designed, durable, and easy to use. It's clear that Norse Steam takes pride in the quality of their products and their commitment to customer satisfaction.
If you're considering a sauna, I wholeheartedly recommend Norse Steam. With their excellent customer service and high-quality products, you're in great hands. Thank you, Maya, and the entire Norse Steam team for a fantastic experience!
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