Skip to content
1 of 1

Warming Trends • Fire Pit Burner

Warming Trends CROSSFIRE UH300 H-Style Brass Fire Pit Burner (300K BTU)

SKU:UH300

Regular price $1,424.00
Regular price Sale price $1,424.00
Sale Sold out
Plate
Flex Line Kit

Designed for performance, durability, and seamless outdoor integration.

Freight delivery · Free on orders $5,000+

$299 under $1,500 · $179 from $1,500–$4,999 · Scheduled delivery with insured carrier

Freight

Financing & payment

Shop Pay
amazon pay
Pay Pal
G Pay
VISA
AMEX
Discover
Flexible financing available at checkout Learn more →
30-day returns on new, unused items in original packaging. See policy →
Warming Trends CROSSFIRE UH300 H-Style Brass Fire Pit Burner (300K BTU)
Description

The Warming Trends CROSSFIRE® UH300 is a 300,000 BTU solid brass burner built for rectangular fire pits, fire tables and fireplaces. Its patented design uses an H-shaped brass layout that spreads flame wide and deep across rectangular openings, producing a taller, fuller flame while burning less gas than a traditional ring or pan burner. Order the burner alone, or add a pre-sized aluminum plate and FK2 flex line kit for a complete drop-in assembly.

Features
  • Patented CROSSFIRE® brass burner produces a taller, fuller flame while using less gas
  • WATERSTOP® fitting shields the gas connection from water and debris
  • Solid brass construction that won't rust or corrode outdoors
  • Universal burner: works with natural gas or propane
  • Engineered for rectangular openings
Configuration Options
  • Burner Only: CROSSFIRE® UH300 brass burner (300,000 BTU)
  • 56" x 25" Plate: burner paired with the 56" x 25" aluminum plate
  • FK2 Included: adds the FK2 flex line and key valve kit
Specifications
  • Model: UH300
  • Output: 300,000 BTU
  • Burner dimensions: 42.25" x 14.25"
  • Style: H-Style (Rectangular Openings)
  • Plate option: 56" x 25" aluminum
  • Flex line kit: FK2
  • Fuel: natural gas or propane
Warranty
  • Lifetime warranty on the CROSSFIRE® brass burner
WARMING TRENDS

Brand Spotlight

Warming Trends

CROSSFIRE brass burners - twice the flame, built in the USA

Explore showroom →
Why Warming What sets them apart
Key Specs Numbers that matter
Our Support What we provide

Twice the Flame

The CROSSFIRE brass burner throws a taller, fuller, more natural flame than a standard steel ring burner, and it does it while using less gas.

All Brass, Built to Last

Every CROSSFIRE burner is made from solid brass components that won't rust or corrode, and Warming Trends backs them with a lifetime warranty.

Designed and Assembled in the USA

Warming Trends designs, engineers, and assembles its fire features in the USA, including a patented Waterstop fitting that keeps gas lines and valve boxes dry season after season.

The Luxe Patios

Your space deserves the full picture

Every zone. Every detail. Designed to work together — and built to last.