multi pass outdoor furnaces

multi pass outdoor furnace

OUTDOOR FURNACE
MULTI PASS SERIES

Built with a triple pass water filled heat exchanger
for higher efficiency, along with shaker grates
& removable ash pan.

The outdoor furnace Multi Pass Series is manufactured with triple pass water filled heat exchanger and water filled heat exchanger tubes that produce the highest efficiencies of a conventional outdoor furnace. The bottom line, you will burn 20% - 40% less than the competition. This series is also equipped with a turbo draft fan along with shaker grates and a removable ash pan.

The Crown Royal Stoves Multi Pass outdoor furnaces are non pressurized systems, designed to be located next to your fuel storage for convenience, and are normally filled once or twice a day, depending on the temperature outside.

The shaker grate and ash pan design was purposefully designed for quick and easy cleaning. Additionally, this outdoor furnace series is equipped with a turbo draft fan that injects air from above the fire, producing a secondary combustion, reducing gases and heat loss up the chimney, producing a cleaner burn that uses less fuel, while the introduction of combustion air under the grates gives a hotter and cleaner burn.

For the best corrosion resistance and heat transfer possible, Crown Royal Stoves Multi Pass outdoor furnace firebox and outer drum is a round design constructed out of 409 Titanium Enhanced Stainless Steel. Virtually any existing heating system can be converted into heating with a Crown Royal Stove outdoor furnace.

  • 409 Titanium Enhanced Stainless Steel
  • Cast Iron Shaker Grate System with Removable Ash Pan
  • Triple Pass Water Filled Heat Exchanger
  • Water Filled Stainless Steel Heat Transfer Tubes
  • Fan Forced Draft
  • Smoke By-Pass
  • Class A Insulated Chimney
  • Non-Stick Door Gasket
  • Insulated - Walls R30, Roof R30
  • Water Level Indicator
  • Safety Latch Firebox Door
  • Digital Control Panel
  • Secondary Combustion
  • Triple Pass Water Filled Heat Exchanger
  • 20 Year Limited Warranty
  • No Mess in the House
  • Works with Any Existing System
  • No Carbon Monoxide Caused by Gas Fumes
  • Removable Ash Pan
  • Large Firebox & Loading Door
  • Cost Effective Heat Source
  • Multiple 1-1/4" Supply & Return Connections
  • Easily Removable Rear Access Door to Plumbing Connections
  • Light for Night Loading
  • Clean, Efficient & Safe
  • Low Maintenance
  • Lower Heating Costs
  • UL 391, UL 726 & CSA B366.1
  • Made in the USA

Some outdoor stove manufacturers who advertise that they offer a Lifetime Warranty, actually offer little to no warranty, but don’t disclose the details. Protect yourself and your investment, by always asking to see the full warranty.

Our 20 Year Warranty provides you the highest quality, longest lasting stove and warranty on the market.

APPLICATIONS

  • Residential Homes
  • Pools/Hot Tubs
  • Domestic Hot Water
  • Radiant In-Floor Heating
  • Commercial Buildings
  • Greenhouses
  • Garages & Workshops
  • Barns & Agricultural Buildings

EXPANDED FEATURES

409 Titanium Enhanced Stainless Steel Firebox & Water Jacket

Developed to withstand the high temperatures of gasification, 409 Stainless Steel provides the best corrosion resistance, maximum heat transfer and strength needed for the firebox and water jacket.

 

Shaker Grate

  • Easy to Clean
  • The shaker grate design ensures a complete burn of your coal
  • The automatic forced air blower extends burn time and creates greater efficiency with hotter burns by introducing air under the grate

 

Removable Ash Pan

  • Extra Large Removable Ash Pan for Easy Cleaning
  • Large Ash Pan Door for Easy Access

 

Ultra-Temp Insulated Stainless Steel Chimney

  • Stainless Steel Inner and Outer Shell
  • Double Wall Insulated Chimney
    Easily Expandable, Interlocking Lengths Available

Turbo Draft System

  • Allows for a cleaner more efficient burn inside the firebox
  • Allows secondary gases to be burned before escaping out the furnace chimney

 

Water Level Indicator

Easy to read water level indicator will keep you informed when additional water must be added.

 

Easy to use Controls

  • Thermostatically controlled to offer an even heat throughout your home or business
  • Digital illuminated controls for easy reading
  • Economical and easy to replace

 

Triple Pass Water Filled Heat Exchanger & Stainless Steel Heat Exchanger Tubes

  • Better Heat Transfer
  • Higher Efficiency
  • Uses Less Fuel
  • Faster Heat Recovery
  • Secondary Combustion

Cost Savings

  • Crown Royal owners can save approximately 50% - 100% of their annual heating costs.
  • Reduce or even eliminate hot water bills and the dependence on foreign fuels.

 

Convenience

  • Depending on the outdoor temperature and size of the unit, our outdoor furnaces only need to be loaded once or twice a day.
  • Eliminate dirt, bark, ash, smoke, soot, or insects from inside your home. It now stays outside where it belongs.
  • Melt away snow from driveways and sidewalks effectively with proper installation requirements.

 

Manufactured with Safety in Mind

  • Eliminates the risk of a house fire, chimney fire, indoor smoke, or carbon monoxide poisoning.
  • Firebox Safety Latch System prevents door from swinging open too quickly.
  • Each Crown Royal Stove has been rigorously tested.

 

20 Year Limited Warranty

OUTDOOR COAL FURNACES

Heat with Wood, Coal, Corn, Wood Chips, Wood Pellets & More 

PHOTO GALLERY

A closer look at the Multi Pass Series Outdoor Furnace

Light & Triple Pass Heat Exchanger Door

Light & Triple Pass Heat Exchanger Door

Triple Pass Heat Exchanger

Triple Pass Heat Exchanger

Control Panel

Control Panel

Stainless Steel Chimney & Water Level Indicator

Stainless Steel Chimney & Water Level Indicator

Adjustable Hinge Design

Adjustable Hinge Design

Turbo Draft System & Heat Exchanger Tubes

Turbo Draft System & Heat Exchanger Tubes

Primary Combustion Chamber & Shaker Grates

Primary Combustion Chamber & Shaker Grates

Turbo Draft System & Heat Exchanger Tubes

Turbo Draft System & Heat Exchanger Tubes

Ash Pan

Ash Pan

Back Access Panel Open

Back Access Panel Open

Back Access Panel Open

Back Access Panel Open

Blower Upper

Blower Upper

Blower Lower

Blower Lower

Domestic Coil

Domestic Coil

Primary Combustion Chamber & Shaker Grates

Primary Combustion Chamber & Shaker Grates

Fresh Air Intake

Fresh Air Intake

Back Access Panel Open

Back Access Panel Open

Back Access Electrical Outlets

Back Access Electrical Outlets

7500MP Loading Door

7500MP Loading Door

7500MP Shaker Grates

7500MP Shaker Grates

7500MP Ash Pan

7500MP Ash Pan

7500MP Heat Exchanger

7500MP Heat Exchanger

7500MP Turbo Draft System & Heat Exchanger Tubes

7500MP Turbo Draft System & Heat Exchanger Tubes

7500MP Back Access Panel Open

7500MP Back Access Panel Open

7500MP Blower Upper

7500MP Blower Upper

7500MP Back Access Electrical Outlets

7500MP Back Access Electrical Outlets

MODEL SPECIFICATIONS

Models:RS7200MPRS7300MPRS7400MPRS7500MP
Estimated Weight:1,400 LBS1,800 LBS2,500 LBS5,000 LBS
Width:47 1/2"
52"60"89"
Length:62"
68"72"99"
Height:81"
87"97"110"
Firebox Length:30"
38"48"60"
Chimney Size:6"
6"8"10"
Door Size:20" x 20"
20" x 20"24" x 24"42" x 32"
Supply Size:1 - 1 1/4"
2 - 1 1/4"2 - 1 1/4"4 - 1 1/4"
Return Size:1 - 1 1/4"2 - 1 1/4"2 - 1 1/4"4 - 1 1/4"
Water Capacity:140 Gallons
180 Gallons320 Gallons600 Gallons
Fan Capacity:150 CFM
150 CFM150 CFM300 CFM
Turbo Fan:60 CFM
60 CFM60 CFM60 CFM
Approximate Sq Ft:2,000-3,000
4,000-6,0008,000-10,00018,000-20,000
Approximate BTU'S:165,000
275,000400,000750,000
Insulation Roof/Walls:R30
R30R30R30
409 Stainless Steel:YES
YESYESYES
Domestic Coil 300,000 BTU:Optional
OptionalOptionalOptional