Indoor Gas Heaters

Indoor gas heaters from Sportsman's Guide provide a safe heat source for the living room, garage, basement, attic, and more. Our gas heaters come in a range of sizes and heat output so that you can get the best option for your space.

Mr. Heater Vent-free Blue Flame Natural Gas Heater, 30,000 BTUs

Key Features

  • 30,000 BTU output per hour
  • For use with natural gas
  • Heats up to 1,000 sq. ft.
  • Automatic low-oxygen shutoff system
  • High-limit safety shutoff
  • Includes removable legs
Buyer's Club
$211.49
Non-Member $234.99
Buyer's Club 4-Pay Members can pay with 4 interest-free monthly installments of:
$52.87
ALL CLUB ORDERS $49+ SHIP FREE!
In Stock
    • Shipping restrictions apply to this product under some jurisdictions. Known age, state and local shipping restrictions are applied at checkout and may result in changes to an order. PLEASE NOTE: We do not accept returns of Ammunition for safety reasons. NEVER use any Ammunition unless it is specifically designed for your firearm.

Key Features

  • 30,000 BTU output per hour
  • For use with natural gas
  • Heats up to 1,000 sq. ft.
  • Automatic low-oxygen shutoff system
  • High-limit safety shutoff
  • Includes removable legs

Mr. Heater Buddy FLEX Portable Radiant Heater

Key Features

  • 8,000-11,000 BTU heats up to 275 sq. ft.
  • For use with propane gas
  • Integrated electronic ignition
  • High wind resistance technology
  • Advanced Safety Detection (ASD™) Systems
  • Omni-directional fiber mesh burner
  • Runs on 1-lb. cylinder or 20-lb. tank (with separate hose)
  • Indoor-safe
Buyer's Club
$143.99
Non-Member $159.99
ALL CLUB ORDERS $49+ SHIP FREE!
In Stock
    • Shipping restrictions apply to this product under some jurisdictions. Known age, state and local shipping restrictions are applied at checkout and may result in changes to an order. PLEASE NOTE: We do not accept returns of Ammunition for safety reasons. NEVER use any Ammunition unless it is specifically designed for your firearm.
    • This item cannot ship to Canada.

Key Features

  • 8,000-11,000 BTU heats up to 275 sq. ft.
  • For use with propane gas
  • Integrated electronic ignition
  • High wind resistance technology
  • Advanced Safety Detection (ASD™) Systems
  • Omni-directional fiber mesh burner
  • Runs on 1-lb. cylinder or 20-lb. tank (with separate hose)
  • Indoor-safe

Eccotemp i12-LP Indoor Tankless Water Heater

Key Features

  • Powered by liquid propane / electronic ignition system
  • 3 GPM flow capacity
  • Hot water capacity range: 0.6 - 4.8 GPM
  • Max. / min. gas rate: 25,000 - 80,000 BTUs
  • Requires standard 120V electrical outlet
  • Includes stainless vent kit
  • 15" x 24" x 4", 33 lbs.
Buyer's Club
$350.99
Non-Member $389.99
Buyer's Club 4-Pay Members can pay with 4 interest-free monthly installments of:
$87.75
ALL CLUB ORDERS $49+ SHIP FREE!
In Stock

Key Features

  • Powered by liquid propane / electronic ignition system
  • 3 GPM flow capacity
  • Hot water capacity range: 0.6 - 4.8 GPM
  • Max. / min. gas rate: 25,000 - 80,000 BTUs
  • Requires standard 120V electrical outlet
  • Includes stainless vent kit
  • 15" x 24" x 4", 33 lbs.

Eccotemp i12-NG Indoor Tankless Water Heater

Key Features

  • True 1/2" NPT water fittings
  • Fully automatic temperature controls
  • Powered by natural gas
  • 3 GPM flow capacity
  • Field tested to 5,500' elevation
  • Requires standard 120V electrical outlet
  • Includes stainless vent kit
Buyer's Club
$323.10
Non-Member $359.00
Buyer's Club 4-Pay Members can pay with 4 interest-free monthly installments of:
$80.78
ALL CLUB ORDERS $49+ SHIP FREE!
    • This item is shipped directly from the factory. To see the expected shipping date, please add to your Shopping Cart. Sorry, no express shipping available. We are unable to ship factory direct items to Alaska, Hawaii, Puerto Rico or APO or FPO addresses.

Key Features

  • True 1/2" NPT water fittings
  • Fully automatic temperature controls
  • Powered by natural gas
  • 3 GPM flow capacity
  • Field tested to 5,500' elevation
  • Requires standard 120V electrical outlet
  • Includes stainless vent kit

Eccotemp 45H-NG Tankless Water Heater

Key Features

  • Powered by natural gas
  • Maximum / Minimum gas rate: 26,000 - 140,000 BTUs
  • Hot water capacity range: 0.8 - 6.8 GPM
  • Activation Flow: 0.8 GPM
  • Intended for outdoor installation
  • Automatic Temperature Controls
  • Digital display with simple controls and diagnostics
  • Includes gas shut-off valve and installation hardware
Buyer's Club
$476.10
Non-Member $529.00
Buyer's Club 4-Pay Members can pay with 4 interest-free monthly installments of:
$119.03
ALL CLUB ORDERS $49+ SHIP FREE!
    • This item is shipped directly from the factory. To see the expected shipping date, please add to your Shopping Cart. Sorry, no express shipping available. We are unable to ship factory direct items to Alaska, Hawaii, Puerto Rico or APO or FPO addresses.

Key Features

  • Powered by natural gas
  • Maximum / Minimum gas rate: 26,000 - 140,000 BTUs
  • Hot water capacity range: 0.8 - 6.8 GPM
  • Activation Flow: 0.8 GPM
  • Intended for outdoor installation
  • Automatic Temperature Controls
  • Digital display with simple controls and diagnostics
  • Includes gas shut-off valve and installation hardware

Mr Heater Big Buddy Portable Propane Heater, 18,000 BTU

Key Features

  • 4,000, 9,000, or 18,000 BTU heats up to 450 sq. ft.
  • Single control start knob
  • 3 heat settings: low, medium and high
  • Swivel regulators
  • Automatic low oxygen shut-off system (ODS)
  • Accidental tip-over safety shut-off
  • Runs off of two 1-lb. propane cylinders (not included)
Buyer's Club
$134.99
Non-Member $149.99
ALL CLUB ORDERS $49+ SHIP FREE!
Item is on backorder. Estimated availability: 10/4/2021
    • Shipping restrictions apply to this product under some jurisdictions. Known age, state and local shipping restrictions are applied at checkout and may result in changes to an order. PLEASE NOTE: We do not accept returns of Ammunition for safety reasons. NEVER use any Ammunition unless it is specifically designed for your firearm.
    • This item cannot ship to Canada.

Key Features

  • 4,000, 9,000, or 18,000 BTU heats up to 450 sq. ft.
  • Single control start knob
  • 3 heat settings: low, medium and high
  • Swivel regulators
  • Automatic low oxygen shut-off system (ODS)
  • Accidental tip-over safety shut-off
  • Runs off of two 1-lb. propane cylinders (not included)

Mr Heater Portable Propane Convection Heater, 25,000 BTU

Key Features

  • 25,000 BTU per hour
  • For use with propane gas
  • Heats up to 625 sq.ft.
  • Quiet and odorless
Buyer's Club
$71.99
Non-Member $79.99
ALL CLUB ORDERS $49+ SHIP FREE!
Item is on backorder. Estimated availability: 10/4/2021

Key Features

  • 25,000 BTU per hour
  • For use with propane gas
  • Heats up to 625 sq.ft.
  • Quiet and odorless

Mr. Heater Little Buddy Portable Propane Heater, 3,800 BTU

Key Features

  • 3,800 BTU, heats up to 100 sq. ft.
  • For use with propane gas
  • One button ignition on function
  • 8" round stand uses little floor space
  • Accidental tip-over safety shut-off
  • Automatic low oxygen shut-off system (ODS)
  • Connects directly to one 1 lb. disposable propane cylinder
  • Quiet, clean, odor-free operation
Buyer's Club
$67.49
Non-Member $74.99
ALL CLUB ORDERS $49+ SHIP FREE!
Item is on backorder. Estimated availability: 10/4/2021
    • Shipping restrictions apply to this product under some jurisdictions. Known age, state and local shipping restrictions are applied at checkout and may result in changes to an order. PLEASE NOTE: We do not accept returns of Ammunition for safety reasons. NEVER use any Ammunition unless it is specifically designed for your firearm.
    • This item cannot ship to Canada.

Key Features

  • 3,800 BTU, heats up to 100 sq. ft.
  • For use with propane gas
  • One button ignition on function
  • 8" round stand uses little floor space
  • Accidental tip-over safety shut-off
  • Automatic low oxygen shut-off system (ODS)
  • Connects directly to one 1 lb. disposable propane cylinder
  • Quiet, clean, odor-free operation

Mr Heater 30,000 BTU Vent-free Blue Flame Propane Heater

Key Features

  • 30,000 BTU heats up to 1,000 sq. ft.
  • Blue flame burner delivers even convection heat
  • Automatic low-oxygen shutoff system
  • High-limit safety shutoff
  • Electronic ignition
  • Mounting hardware for ceiling/floor install
  • Uses 20 lb. propane tank (not included)
  • Safe for indoor use
Buyer's Club
$211.49
Non-Member $234.99
Buyer's Club 4-Pay Members can pay with 4 interest-free monthly installments of:
$52.87
ALL CLUB ORDERS $49+ SHIP FREE!
Item is on backorder. Estimated availability: 10/4/2021
    • Shipping restrictions apply to this product under some jurisdictions. Known age, state and local shipping restrictions are applied at checkout and may result in changes to an order. PLEASE NOTE: We do not accept returns of Ammunition for safety reasons. NEVER use any Ammunition unless it is specifically designed for your firearm.

Key Features

  • 30,000 BTU heats up to 1,000 sq. ft.
  • Blue flame burner delivers even convection heat
  • Automatic low-oxygen shutoff system
  • High-limit safety shutoff
  • Electronic ignition
  • Mounting hardware for ceiling/floor install
  • Uses 20 lb. propane tank (not included)
  • Safe for indoor use

Mr. Heater 18,000 BTU Propane Cabinet Heater

Key Features

  • Up to 18,000 BTU per hour
  • Heats up to 450 sq. ft.
  • 24-hour runtime at max BTU
  • Runs on propane gas
  • No electricity required
Buyer's Club
$107.99
Non-Member $119.99
ALL CLUB ORDERS $49+ SHIP FREE!
Item is on backorder. Estimated availability: 10/4/2021

Key Features

  • Up to 18,000 BTU per hour
  • Heats up to 450 sq. ft.
  • 24-hour runtime at max BTU
  • Runs on propane gas
  • No electricity required

Mr. Heater Vent-Free Radiant Propane Heater, 18,000 BTU

Key Features

  • 18,000 BTU heats up to 700 sq. ft.
  • Radiant heat burner
  • Automatic low-oxygen shutoff system
  • High-limit safety shutoff
  • Piezo ignition
  • Includes legs and wall-mounting hardware
  • Safe for indoor use
  • Uses 20 lb. propane tank (tank and hose not included)
Buyer's Club
$175.49
Non-Member $194.99
Buyer's Club 4-Pay Members can pay with 4 interest-free monthly installments of:
$43.87
ALL CLUB ORDERS $49+ SHIP FREE!
Item is on backorder. Estimated availability: 10/4/2021
    • Shipping restrictions apply to this product under some jurisdictions. Known age, state and local shipping restrictions are applied at checkout and may result in changes to an order. PLEASE NOTE: We do not accept returns of Ammunition for safety reasons. NEVER use any Ammunition unless it is specifically designed for your firearm.

Key Features

  • 18,000 BTU heats up to 700 sq. ft.
  • Radiant heat burner
  • Automatic low-oxygen shutoff system
  • High-limit safety shutoff
  • Piezo ignition
  • Includes legs and wall-mounting hardware
  • Safe for indoor use
  • Uses 20 lb. propane tank (tank and hose not included)

Mr. Heater Vent-free Blue Flame Propane Heater, 20,000 BTUs

Key Features

  • 20,000 BTU heats up to 700 sq. ft.
  • Blue flame burner delivers even convection heat
  • Automatic low-oxygen shutoff system
  • High-limit safety shutoff
  • Electronic ignition
  • Mounting hardware for ceiling/floor install
  • Uses 20 lb. propane tank (not included)
  • Safe for indoor use!
Buyer's Club
$166.49
Non-Member $184.99
Buyer's Club 4-Pay Members can pay with 4 interest-free monthly installments of:
$41.62
ALL CLUB ORDERS $49+ SHIP FREE!
Item is on backorder. Estimated availability: 10/4/2021
    • Shipping restrictions apply to this product under some jurisdictions. Known age, state and local shipping restrictions are applied at checkout and may result in changes to an order. PLEASE NOTE: We do not accept returns of Ammunition for safety reasons. NEVER use any Ammunition unless it is specifically designed for your firearm.

Key Features

  • 20,000 BTU heats up to 700 sq. ft.
  • Blue flame burner delivers even convection heat
  • Automatic low-oxygen shutoff system
  • High-limit safety shutoff
  • Electronic ignition
  • Mounting hardware for ceiling/floor install
  • Uses 20 lb. propane tank (not included)
  • Safe for indoor use!

Mr. Heater Vent-Free Radiant Propane Heater, 30,000 BTU

Key Features

  • 30,000 BTU heats up to 1,000 sq. ft.
  • Uses 20 lb. propane tank (not included)
  • Radiant heat burner
  • Automatic low-oxygen shutoff system
  • High-limit safety shutoff
  • Electronic ignition
  • Includes legs and wall-mounting hardware
  • Safe for indoor use
Buyer's Club
$211.49
Non-Member $234.99
Buyer's Club 4-Pay Members can pay with 4 interest-free monthly installments of:
$52.87
ALL CLUB ORDERS $49+ SHIP FREE!
Item is on backorder. Estimated availability: 10/4/2021
    • Shipping restrictions apply to this product under some jurisdictions. Known age, state and local shipping restrictions are applied at checkout and may result in changes to an order. PLEASE NOTE: We do not accept returns of Ammunition for safety reasons. NEVER use any Ammunition unless it is specifically designed for your firearm.

Key Features

  • 30,000 BTU heats up to 1,000 sq. ft.
  • Uses 20 lb. propane tank (not included)
  • Radiant heat burner
  • Automatic low-oxygen shutoff system
  • High-limit safety shutoff
  • Electronic ignition
  • Includes legs and wall-mounting hardware
  • Safe for indoor use

Mr. Heater Portable Convection Heater

Key Features

  • 30,000 - 80,000 BTU per hour
  • For use with propane gas
  • Heats up to 1,900 sq. ft.
  • Operates up to 14 hours
  • Quiet and odorless
Buyer's Club
$107.99
Non-Member $119.99
ALL CLUB ORDERS $49+ SHIP FREE!
Item is on backorder. Estimated availability: 10/4/2021

Key Features

  • 30,000 - 80,000 BTU per hour
  • For use with propane gas
  • Heats up to 1,900 sq. ft.
  • Operates up to 14 hours
  • Quiet and odorless

Mr. Heater Forced Air Kerosene Heater, 210,000 BTU

Key Features

  • 210,000 BTU per hour
  • Use with kerosene, diesel, or home heating oil
  • Heats up to 6,000 sq. ft.
  • 9.5 hours runtime on full tank
  • Overheat safety shutdown
Buyer's Club
$368.99
Non-Member $409.99
Buyer's Club 4-Pay Members can pay with 4 interest-free monthly installments of:
$92.25
ALL CLUB ORDERS $49+ SHIP FREE!
HEAVY/BULKY FEES APPLY TO THIS ITEM
Item is on backorder. Estimated availability: 9/2/2021
    • Add an additional $15.00 heavy/bulky shipping charge per each.
    • This item cannot ship via any of our Next Day or Second Day Express delivery methods.
    • This item cannot ship to Canada.

Key Features

  • 210,000 BTU per hour
  • Use with kerosene, diesel, or home heating oil
  • Heats up to 6,000 sq. ft.
  • 9.5 hours runtime on full tank
  • Overheat safety shutdown