HPC Square Ready to Finish Fire Pit Enclosure Kit

HPC Fire
Part #: U45S/xxx-config


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Product Description
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HPC Square Ready to Finish Fire Pit Enclosure Kit

This 45 inch Square Ready-to-Finish Fire Pit Form by HPC provides everything you need for your firepit but allows you to finish the aesthetics of your firepit in a way that seamlessly matches its surroundings. The pre-fabricated fire pit structure eliminates guesswork and reduces construction time, ideal for contractors and hardscape companies.

The Enclosure stands at a comfortable 18 inches tall, ideal for seating areas.

The HPC Square 45 Inch Unfinished Fire Pit Enclosure is commercial-grade and boasts a sturdy 22-gauge galvanized steel material with a welded frame and a 1/2” Hardiboard shell finish.

The Enclosure is supplied with a fully assembled HPC Round Insert and Burner with the Ignition System of your choice, the Hardiboard, the Galvanized Steel Framed Enclosure, and Stainless Steel Vents with pre-cut holes in the Hardiboard.


Gas Type

There are two models, one for use with Natural Gas the other for Propane. They are not interchangeable.

Burner Options

There are two options for burner type. The Torpedo Penta Burner or Standard Penta Burner. Penta refers to the shape of the burner.

The Standard Burner has gas holes drilled into the Stainless Steel. In contrast, the Torpedo version is fitted with precision-engineered nozzles, which according to HPC develop a bigger, warmer flame without excessive gas consumption. For more detailed information on these, please refer to the Torpedo Burner Page.

Torpedo Penta and Standard Penta Fire Pit Burner detail
Torpedo Penta  and Standard Penta Burner Detail

Ignition Options

There are three options, Match Lit, Push Button Flame Sensing, and the ON/OFF Electronic Ignition.

HPC Round Match Lit Fire Pit Kit with Drop In Pan and Penta Burner

Match Lit

The Match Lit system utilizes the chrome key valve installed on the fire pit structure to light the burner.

Simply turn the key to the on position and light the gas with a match, taper, or lighter. The flame can be adjusted and turned off using the key valve.

HPC Round Push Button Spark Ignition Fire Kit with Bowl Insert

Push Button Flame Sensing Kit

Ignited via a spark probe, with the push button on the the valve control panel. 

A flame monitoring system automatically cuts off the gas if the flame is extinguished. 

This battery-operated system is a good solution when flame sensing is necessary but AC power is unavailable.

HPC Round Electronic Ignition Fire Kit with Bowl Insert

Electronic Ignition On/Off

The Electronic Ignition has Flame Sensing but will also automatically relight if the flame is blown out.

24VAC is typically used poolside or with other lower voltage requirements.


This model allows your fire pit to be switched On and Off by a wall switch, timer, your whole house system, or by Remote Control which in this case is an optional extra and only suitable for the 120 VAC models.


This model allows your fire pit to be switched On and Off by a wall switch or your whole house system.

A Class II 24VAC, 4 amp, 100 W transformer must be used to power the fire pit and be able to be switched on and off from a remote location to allow for easy access or emergency.  HPC highly recommends the HPC SEBCO 24vac Power Supply

HPC Square Ready to Finish Fire Pit Enclosure Kit Specifications:


  • Dimensions: 45″ x 45″ x 18″
  • Weight: 150lbs
  • Cladding: 34 SQ FT (not included)
  • Frame: 22-gauge galvanized steel
  • Durable HardieBoard walls ensure strength
  • Pre-cut ventilation for proper airflow
  • Pre-cut holes for push-button or match-lit installations
  • Pre-cut space for inserts

Pan & Burner

  • Fully assembled, commercial grade, CSA-certified fire pit insert
  • Insert – Round 25″ Stainless Steel Bowl Pan
  • Burner – 18″ Stainless Steel Penta or Torpedo Penta Burner

Burner BTU Ratings

  • Match Lit – 65,000 BTUs/hr
  • Push Button Spark Ignition – 90,000 BTUs/hr
  • Electronic Ignition – 125,000 BTUs/hr


All the Ignition Systems are CSA Certified


Stainless Steel Fire Burners:  Lifetime warranty
Electronic Components and Gas Valves:  Residential – 3 Years, Commercial -1 Year
Pilot Assembly: Residential – 2 Years, Commercial – 1 Year
Stainless Steel Components: Residential – 5 Years, Commercial – 1 Year
Cold Rolled Steel Components: Residential – 1 Years, Commercial – 6 Months
Unfinished Fire Pit Enclosures: Residential – 3 Years, Commercial – 3 Years

HPC Square Ready to Finish Fire Pit Enclosure Kit Downloads:

Spec Sheets

Installation & Operation

California Prop 65

WARNING: California PROP 65: This product can expose you to Lead & Chromium, known to the State of California to cause cancer and congenital disabilities or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.