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Final Week — Winter Is Coming — 20% OFF Sitewide Free Shipping 00d : 00h : 00m : 00s
ATLAS Pellet Stove Boiler
Model
20% OFF
$3,028
$2,422
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$515
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- Your heating bill will noticeWood pellets cost a fraction of oil or gas — and the ATLAS burns them at over 94% efficiency. That combination hits your wallet in the best possible way.
- One stove, whole houseThe water jacket pushes heat to every room — radiators, radiant floors, fan coils, even your hot water tank. One fire does it all.
- Fuel you can feel good aboutWood pellets are renewable, low-emission, and sold at farm stores and hardware chains across North America. A cleaner way to stay warm.
- Built to stay cleanLift the top cover, screw in the handle, move it up and down. Two minutes, once a week. That's all the maintenance this stove asks for.
- Real people, real answersNot a chatbot. Our hydronic HVAC team picks up the phone and helps you get the system right — before the install and after.
ATLAS Pellet Stove Boiler
Main Features
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Up to 94% Thermal Efficiency
Advanced heat exchanger design captures more heat from every pellet, delivering exceptional efficiency, lower fuel consumption and reduced heating costs throughout the season.
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Automatic Combustion Management
An intelligent control system continuously adjusts fuel feeding and combustion settings to maintain optimal performance, consistent comfort, and maximum energy efficiency.
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Spacious Ashtray Compartment
The large capacity ash collection compartment reduces cleaning frequency and simplifies routine maintenance, allowing longer operating periods between service intervals.
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Easy-to-Use LCD Display
LCD control panel provides quick access to temperatures, operating modes, schedules and system information for simple day-to-day operation.
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Weekly Programmable Schedule
Customized daily and weekly heating schedules to automatically start and stop the boiler, improving comfort while reducing unnecessary energy consumption.
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Advanced Safety Monitoring
Multiple sensors continuously monitor water temperature, pressure, airflow and combustion conditions to ensure safe, reliable, and worry free boiler operation.
Capacity: 65-120K BTU/h
Provides enough continuous warmth to comfortably heat medium to large homes or commercial spaces.
Hopper Capacity: Up to 99 lbs
Holds up to 99 pounds of wood pellets, giving you days of continuous, automated heating before needing a manual refill.
Max Water Temperature: 194°F
This is the highest safe heat the internal water can reach, ensuring piping-hot water flows reliably to your radiators or underfloor heating loops.
Electrical Supply: 120V 60Hz
Uses 120V 60Hz power to run its automatic starter, electronic control screen, internal pumps and exhaust fans.
Technical specifications
ATLAS Pellet Stove Boiler specifications. Use this table as the source of truth and confirm final sizing with MBTEK before ordering.
| Product family | ATLAS Pellet Stove Boiler |
|---|---|
| Heating capacity | 65 KBTU / 120 KBTU |
| Efficiency rating | Over 94% |
| Fuel type | Wood pellets, 1/4 in to 5/16 in diameter |
| Maximum water temperature | 194 F / 90 C |
| System operating pressure | 30 PSI |
| Exhaust vent pipe flue | 4 in |
| Fresh combustion air inlet | 2 3/8 in for 65 KBTU; 3 in for 120 KBTU |
| Hopper capacity | Up to 99 lb |
| Heating area | 65 KBTU model: up to 2,250 ft2; 120 KBTU model: up to 4,400 ft2 |
| Electrical supply | 120V 60Hz |
Exact installation requirements depend on the full hydronic design, venting, and local code.
Product documents
ATLAS Pellet Stove Boiler Manual
Installation, operation, cleaning, safety, wiring, and service guidance for the ATLAS Pellet Stove Boiler.
Product details
ATLAS Pellet Stove Boiler
The ATLAS Pellet Stove Boiler is a compact, high-efficiency wood pellet heating solution designed for hydronic central heating systems. Unlike a standard pellet stove that only heats the room where it is installed, the ATLAS uses an integrated water jacket to transfer heat into your hydronic system for whole-home or light commercial heating.
With automatic combustion control, smart start and stop timers, built-in safety protections, and a modern indoor design, the ATLAS combines the look and convenience of a pellet stove with the heating performance of a pellet boiler.
Key Benefits
- Pellet stove boiler design combines room-friendly indoor installation with hydronic heating performance.
- Water-jacketed heating transfers heat into your hydronic system for central heating applications.
- High-efficiency operation helps maximize wood pellet fuel economy.
- Automatic pellet feed and airflow modulation adjust combustion based on heating demand.
- Built-in fuel bunker provides extended heating autonomy between refills.
- Programmable controller supports daily, weekly, and weekend start/stop schedules.
- Fast automatic ignition helps simplify startup and everyday operation.
- Integrated safety protections monitor water temperature, system pressure, and flame conditions.
- Easy maintenance access with quick-release side panels and a slide-out ash tray.
- Modern European design makes it suitable for visible indoor mechanical or living-space installations.
Specifications
- Heating Capacity: 65 KBTU / 120 KBTU
- Efficiency Rating: Over 94%
- Maximum Water Temperature: 194°F (90°C)
- System Operating Pressure: 30 PSI
- Exhaust Vent Pipe Flue: 4"
- Fresh Combustion Air Inlet: 2 3/8” for 65 KBTU / 3” for 120 KBTU
- Fuel Type: Wood pellets, 1/4" to 5/16" diameter
- Electrical Supply: 120V 60Hz
ATLAS FAQ
ATLAS Pellet Stove Boiler Frequently Asked Questions
Answers about the ATLAS Pellet Stove Boiler for compact hydronic heating and hot water-ready system designs.
What is the ATLAS Pellet Stove Boiler?
The ATLAS Pellet Stove Boiler is a compact pellet-fired boiler that heats water for hydronic central heating. It is built for systems such as radiant floors, radiators, fan coils, and properly designed hot-water-ready layouts.
Is ATLAS a pellet stove or a pellet boiler?
ATLAS has the compact format of a pellet stove, but it is a boiler because it heats water for a hydronic system. A standard pellet stove mainly heats the room where it sits, while ATLAS can send heat through water piping to multiple zones when installed correctly.
Is ATLAS a wood pellet boiler stove or a pellet stove furnace boiler?
Yes, ATLAS is sometimes described as a wood pellet boiler stove or a pellet stove furnace boiler, since it combines a compact pellet-stove-style cabinet with a true hydronic boiler inside. Unlike a standalone pellet stove that only heats the room it sits in, ATLAS heats water that can be distributed to radiators, radiant floors, and other zones through a properly designed hydronic system.
Should I choose the 65 KBTU or 120 KBTU ATLAS model?
The 65 KBTU model is rated for up to 2,250 ft2, and the 120 KBTU model is rated for up to 4,400 ft2. Final sizing should still account for heat loss, building size, climate, water-temperature needs, and domestic hot water demand before ordering.
Can ATLAS heat domestic hot water?
Yes, ATLAS can support domestic hot water when it is connected to an indirect tank or another approved hydronic design. Domestic hot water demand should be included in the system's heat-loss and sizing calculations from the start, alongside the space-heating load, rather than added on afterward. ATLAS should be treated as part of a complete heating system, not as a standalone water heater.
How efficient is the ATLAS Pellet Stove Boiler?
The ATLAS efficiency rating is over 94%. Real performance depends on pellet quality, chimney draft, cleaning, water temperature, controls, and the overall hydronic system design.
What fuel does ATLAS use?
ATLAS uses wood pellets in the size range listed in the specs table. Dry, consistent, high-quality pellets help the boiler burn cleaner, reduce ash, and maintain steadier performance.
What should I plan before installing ATLAS?
Plan venting, combustion air, clearances, hydronic connections, operating pressure, electrical service, pumps, controls, and code requirements before installation. A qualified hydronic installer should confirm the final layout.
What maintenance does ATLAS need?
Routine maintenance includes emptying ash, cleaning the burn area and heat exchanger, checking venting, inspecting gaskets, and keeping pellets dry. Annual service should also check pumps, valves, controls, expansion tank, and water quality.
What buildings is ATLAS best for?
ATLAS is best for homes, workshops, and smaller commercial spaces where compact pellet hydronic heat makes sense. Larger or higher-demand projects should compare Phoenix or Pellet Duo models before final sizing.
How does ATLAS compare with Phoenix?
ATLAS and Phoenix are MBTEK's two compact pellet boiler lines, and their BTU tiers overlap closely — ATLAS 120K (up to 4,400 ft2) covers nearly the same space as Phoenix 35 (120K, up to 4,500 ft2). ATLAS carries a meaningfully lower price at every comparable tier, while Phoenix adds self-cleaning support, app-based remote control, and a higher efficiency rating (up to 96% vs. ATLAS's 94%+), plus a larger top tier — Phoenix 50 (170K BTU, up to 5,600 ft2) — that ATLAS doesn't offer. Both lines are wood-pellet-only, appliance-style units, distinct from the multi-fuel Pellet Duo platform. Confirm current pricing on the site, since promotions change.
