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L.B. White Tradesman 400 Ultra DF | 250,000 - 400,000 BTU/Hr | LP/NG | w/ Diagnostic Light GWG311070
By L.B. White
- Regular price
- $1,393.00
✓ Lowest Price Guaranteed
✓ Free & Fast Shipping: In Stock and Ready to Ship
✓ Questions? Call A Team Member: 419-967-3418
- Regular price
- $1,393.00
Estimated Shipping Time
Estimated Shipping Time
At Summit Forge Supply, we offer free standard shipping on all U.S. orders, with most orders processing within 1–2 business days and delivering in approximately 3–5 business days. We ship via trusted carriers including USPS, UPS, FedEx, and LTL freight providers, and all orders include tracking and shipment insurance. If your order is delayed, damaged, lost, or missing items, please contact us within 7 days so we can promptly assist with a replacement or refund. Returns are accepted within 30 days on unused items in original packaging, with return shipping covered by Summit Forge Supply. See full policy here: Shipping Policy
What Is Your Return Policy?
What Is Your Return Policy?
Summit Forge Supply accepts returns on eligible U.S. orders within 14 days of delivery, provided items are unused, undamaged, and in their original packaging with proof of purchase. Returns must be initiated within 7 days of receipt, and approved returns include prepaid return shipping; refunds are issued to the original payment method within up to 14 days after inspection, with a 25% restocking fee for change-of-mind returns. Defective, damaged, incorrect, or lost items qualify for a full refund or replacement at no cost to the customer when reported promptly. Custom or personalized items, perishable goods, gift cards, and downloadable products are non-returnable. See full policy here: Return Policy
How The L.B. White Tradesman 400 Ultra DF Compares To Other L.B. White Heating Options
Contractors evaluating direct-fired portable heaters usually face this question: should I get the self-contained Tradesman K210 for job sites without gas, the moderate-output Premier 170 DF 2.0, or this variable-output Tradesman 400 Ultra DF for maximum flexibility and BTU range?
Here's the honest comparison:
| Feature | L.B. White Tradesman K210, Kerosene/Diesel ($1,068) | L.B. White Premier 170 DF 2.0, Dual-Fuel Gas ($3,261) | L.B. White Tradesman 400 Ultra DF, Variable Dual-Fuel Gas ($1,393) |
|---|---|---|---|
| Fuel Type | Kerosene, #1/#2 diesel, or #1 fuel oil | Propane or natural gas, dual-fuel | Propane or natural gas, dual-fuel, switch with a simple valve turn |
| BTU Output | 210,000 BTU/hr, fixed | 170,000 BTU/hr, fixed | 250,000 to 400,000 BTU/hr, variable rate for fuel savings |
| Airflow | 650 CFM | 1,200 CFM | 1,050 to 1,582 CFM depending on output setting |
| Ignition System | Dependable dual-prong electronic spark ignition | Reliable electronic ignition | Unique 3-trial ignition system |
| Troubleshooting | Onboard air diagnostic system, fuel and pressure gauges | Not specified | Self-Diagnostic Service Saver diagnostic light for convenient troubleshooting |
| Combustion Chamber | Standard | Standard | Industry's heaviest gauge combustion chamber and burner plate |
| Case Finish | Standard | Tri-shield finish | Tri-shield coated case, protects against abrasion and corrosion |
| Certification | Standard | Standard | Certified to CSA and ANSI standards |
| Best Suited For | Remote job sites without gas or reliable electrical access | Sites wanting a fixed, moderate output with quiet, enclosed flame operation | Sites needing maximum output flexibility and heavy-duty combustion chamber durability |
Why The L.B. White Tradesman 400 Ultra DF Is Worth The Investment
This isn't just a heater, it's built with a variable rate valve and built-in thermostatic control letting it run anywhere from 250,000 to 400,000 BTU per hour, giving contractors the flexibility to dial in exactly the heat output needed for the space while conserving fuel, all backed by the industry's heaviest gauge combustion chamber and burner plate.
The Tradesman 400 Ultra DF specifically addresses the needs of contractors who need the highest BTU range available in the L.B. White Tradesman line, along with genuine fuel-saving flexibility and built-in diagnostic support for troubleshooting.
Maximum Output Range, Built To Save Fuel. Unlike fixed-output heaters that run at a single BTU rating, this heater's variable rate valve and thermostatic control let you scale output anywhere from 250,000 to 400,000 BTU per hour, meaning you're not burning fuel at maximum output when a smaller space only needs moderate heat.
Built For Serious, Adjustable Heating Power
The variable rate valve and thermostatic control allow output to be dialed in from 250,000 to 400,000 BTU per hour
Delivers up to 1,582 CFM of heated air at full output for fast, effective space heating
Dual-fuel operation switches between propane and natural gas with the simple turn of a selector valve
Engineered For Rugged Durability And Easy Troubleshooting
The industry's heaviest gauge combustion chamber and burner plate stand up to demanding daily use
The unique 3-trial ignition system with Self-Diagnostic Service Saver diagnostic light streamlines troubleshooting
The Tri-shield coated case protects against abrasion and corrosion across repeated job site deployments
Real Savings
Variable output reduces fuel consumption compared to running a fixed-output heater at maximum capacity for smaller spaces
The diagnostic light reduces service call time and downtime by pinpointing issues quickly
A 2-year warranty with lifetime technical support reduces the risk of unexpected repair costs
Free shipping and no sales tax through Summit Forge Supply keeps the total cost down compared to buying elsewhere and paying tax and freight separately
The Bottom Line Contractors who need maximum heating flexibility across a wide BTU range, along with rugged combustion chamber construction and built-in diagnostics, can't get that combination from a fixed-output heater. The L.B. White Tradesman 400 Ultra DF is built with a variable 250,000-400,000 BTU output range, the industry's heaviest gauge combustion chamber, and self-diagnostic troubleshooting support, so it delivers adjustable, fuel-conscious heating power for demanding job sites. For anyone needing to dial in the right amount of heat for varying space sizes, this is the heater built to scale with the job.
- 400,000 BTU/hr output delivers high-capacity heating for large jobsite and industrial spaces
- Dual-fuel capability (LP or NG) offers fuel flexibility for changing jobsite needs
- 99% fuel efficiency ensures clean, cost-effective heat with minimal emissions
- Enclosed flame design enhances safety and supports consistent heat delivery
- Integrated thermostat provides adjustable, precise temperature control
- Spark ignition system ensures fast, reliable startups every time
- Rugged powder-coated steel housing withstands harsh jobsite conditions
- Durable frame with handle and wheel kit options for improved mobility
- Ideal for construction sites, agricultural applications, tent heating, and rental fleets