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Shipping nationwide to the USA + Canada

Shipping nationwide to the USA + Canada

About this part

The Lochinvar FTX400N is a commercial high-efficiency fire-tube boiler with 399,999 BTU/hr input. It delivers 98% thermal efficiency and features a 10:1 turndown ratio for precise modulation. Designed for hydronic heating systems, it supports variable primary flow and cascade redundancy.

  • 399,999 BTU/hr max input, 392,000 BTU/hr output
  • 98% thermal efficiency
  • 10:1 turndown ratio
  • Natural gas, 1" gas connection
  • Variable flow 10-105 GPM with 13 gallon water volume
  • Cascade sequencing enabled up to 8 boilers
  • Direct vent or room air, PVC/CPVC/polypropylene/stainless steel up to 100 ft
  • Shipping weight 435 lb

Specifications

Brand
Lochinvar
Part number
FTX400N
SKU
1001303
Category
Boilers
Shipping weight
435 lb

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