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Deal.ai › L.B. White
L.B. White
L.B. White K125 125,000 BTU Portable Forced Air Kerosene Heater

L.B. White K125 125,000 BTU Portable Forced Air Kerosene Heater

Best price now

$335.00at HVACDirect.comChecked 6 h ago

43% under what the other stores charge

Compared across 8 stores. Prices are checked against each store and labelled with when.

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Price facts

  • Lowest price today: $335.00 at HVACDirect.com (checked Nov 10, 2026).
  • Checked at 8 stores.

Our take on the L.B. White K125 125,000 BTU Portable Forced Air Kerosene Heater

The L.B. White K125 is a direct-fired portable kerosene forced-air heater rated at 125,000 BTU, built to warm large open spaces such as warehouses, workshops, garages and construction sites. It pushes 520 CFM through a thermostat-controlled burner with automatic-reset overheat protection, and its 99% direct-fired efficiency means nearly all the heat goes into the room. It is a serious jobsite tool rather than a household appliance: it needs 120V power, vents combustion gases into the space it heats, and weighs around 64 lbs. Compared with smaller 50,000–80,000 BTU torpedo heaters it covers far more area but burns more fuel and demands more ventilation and care.

Best forHeating large garages, workshops and warehousesConstruction and renovation sitesCold-weather job sites without permanent heatSpot heating open, well-ventilated spaces
Pros
  • High 125,000 BTU output covers up to 3,000 sq. ft.
  • Thermostat control cycles the burner to hold temperature
  • 520 CFM fan moves heat across a large space
  • 99% direct-fired efficiency puts almost all fuel heat into the room
  • Automatic-reset overheat protection shuts the burner down if it runs hot
Cons
  • Direct-fired design releases combustion gases and moisture indoors, so ventilation is required
  • Kerosene fuel is a recurring cost and needs safe storage and handling
  • Needs a 120V outlet; draws about 2.5 amps continuously
  • Around 64 lbs, so it is awkward to move between floors or sites
  • Kerosene smell and burner noise are noticeable in enclosed spaces

L.B. White K125 125,000 BTU Portable Forced Air Kerosene Heater prices at every store

  • HVACDirect.comNew

    In stock

    $335.00Checked 6 h ago
    Visit HVACDirect.com
  • Empire Rigging & SupplyNew

    In stock

    $359.47Checked 6 h ago
    Visit Empire Rigging & Supply
  • Acme ToolsNew

    In stock

    $589.99Checked 6 h ago
    Visit Acme Tools
  • WalmartNew

    In stockSold by Acme Tools

    $589.99Checked 6 h ago
    Visit Walmart
  • eBayNew

    In stockSold by acmetools

    $589.99Checked 6 h ago
    Visit eBay
  • EquipSupply.comNew

    In stock

    $766.55Checked 6 h ago
    Visit EquipSupply.com
  • FactoryPureNew

    In stock

    $786.55Checked 6 h ago
    Visit FactoryPure
  • Penn Tool Co.New

    In stock

    $936.43Checked 6 h ago
    Visit Penn Tool Co.

Store links may earn us a commission.

L.B. White K125 125,000 BTU Portable Forced Air Kerosene Heater price history

Lowest price we've seen: $335.00 on Nov 10 at HVACDirect.com. Tracked across 8 stores since Nov 10.

What reviewers say

Owners of L.B. White kerosene torpedo heaters generally report strong, fast heat for large shops and job sites and treat the thermostat as a real convenience. Complaints center on fuel use, kerosene odor and the need for ventilation rather than on reliability.

What people mention
  • Heat outputPraisedOwners say it warms big garages and shops fast and holds temperature with the thermostat.
  • Fuel useMixedIt burns kerosene quickly at full output, so running costs and refills are a common concern.
  • OdorCriticisedUsers notice a kerosene smell, especially at startup and shutdown, and say ventilation matters.
  • BuildPraisedReviewers describe it as a solid, jobsite-grade unit that holds up to rough use.
  • PortabilityCriticisedAt around 64 lbs it is heavy and awkward to carry, so most owners keep it in one place.

Specifications

Heat Output
125,000 BTU/HR
Heat Source
Combustion
Heating Area
3000 sq. ft. (maximum)
Heating Method
Forced Air
Heating Highlights
With Thermostat, Forced Air
Thermostat
Yes
Wattage
816.5 W (continuous operation)

Questions and answers

Is the L.B. White K125 safe to use indoors?
It is direct-fired, so combustion gases and moisture go into the room. Use it only in well-ventilated spaces such as garages, shops or sites, never in sealed living areas.
How large a space can it heat?
L.B. White rates it for up to 3,000 sq. ft. Real coverage depends on ceiling height, insulation and outdoor temperature, so expect less in a cold, drafty building.
What fuel and power does it need?
It runs on kerosene and plugs into a standard 120V outlet, drawing about 2.5 amps. It does not run on propane or diesel.
Does the thermostat turn the burner on and off?
Yes. Set the thermostat and the burner cycles to hold that temperature, which saves fuel compared with running flat out.
How does it compare with a propane torpedo heater?
Kerosene avoids the need for propane tanks and refills, but propane units are often simpler to fuel. Both are direct-fired and need ventilation; the K125's 125,000 BTU output is aimed at large spaces.
What is included with the heater?
The heater ships as a freestanding unit with its thermostat and overheat protection built in. Fuel and any ducting or accessories are separate.
Where is the L.B. White K125 125,000 BTU Portable Forced Air Kerosene Heater cheapest?
At HVACDirect.com, for $335.00, 43% under what the other stores charge, as of our latest check.
Where can I buy the L.B. White K125 125,000 BTU Portable Forced Air Kerosene Heater?
8 stores we checked sell it, including HVACDirect.com, Empire Rigging & Supply, Acme Tools, Walmart, eBay.

Stores we've priced the L.B. White K125 125,000 BTU Portable Forced Air Kerosene Heater at

  • Acme Tools deals and prices
  • Walmart deals and prices
Power Type
AC
Amperage
2.5 Amps (continuous)
Automatic Shut-Off
Yes (Automatic Reset thermal overheat protection)
Overheat Protection
Yes (Automatic Reset)
Safety Highlights
Overheat protection (Automatic Reset)
Depth
21.5 (W)
Dimensions
36.1 x 21.5 x 24.6 (L x W x H)
Height
24.6
Width
36.1 (L)
Material
Composite (fuel fittings)
Weight
64 lbs (Shipping Weight)
Venting Type
Direct-fired
Installation Type
Freestanding
Forced Air
Yes
Airflow
520 CFM
Efficiency
99% (direct-fired fuel efficiency)
Color
White